NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish outlasts outshines others dont like brag. BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC Syetem NICd Batteries chargers need packagel CyclerCharge$19995 00i Fits 48V Rn 96V Tx packsPlus $5 S&HGelled Cell Others available write call Regular Model$3995 ForPlus $2 S&H ld kit smallPlus $2 S&H electric boat battenesSpecify 6 12 24V Heavy Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssEieetomsasonPO Box 221 6059875924Dealer squlnes tinned Canton SD 57013 HOBBYPOXY TRUE TW0PART EPOXY PAINTS 16 COLORS R ER EPOXY GLUES FOUR FORMULAS 5MIN 10 45-MIN FAST FILL GRAIN FILLER QUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE MOBBYPOXY DiVISION Petit Petit company 36 Pine Street Roclwaay NJ oae6 $100 BLUE tttDicatalog RJDOE MACHINERY&TOOL8 P0 Box 536-Y Hurricane WV 25526 304-562-3535 offer compiete selection iathes mills tools Aviation Modeier IMPORTED DIESELS AMAuroraDCEOMVVSMNSCEflYa PAWTapIIn Standard & RIC.OIO40 Aero ne VlntageSport & Contest Send 8100 Informatiom CARLSON ENGINE IMPORTS 614 East Marconi Phoenix AZ 85022 Send SSAE coining sheet nut complete line ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX 4-M Company AH Designs49 AJ Products150 AMA Membership45 Ace Radio Control47 179 Aerodrome Models Ltd47 Aero-Fab178 Aerospace Composite Products179 Air Champ Models152 Airtronics2 American Jr Aircraft Co176 Applied Design18 Astro Flight4 Authorized RC Service12 Aviators Guide43 BC Products172 Beer Can Bombers160 Blackbird International79 Blue Ridge Machinery & Tools184 Bolar Heli Resesarch178 Bradley Products136 Dave Brown Products44 Bru Line Industries44 Byron Originals80-81 Ca Ra Products184 California Model Imports16 Campbell Tools Co178 Caarlson Engine Imports184 Johnny Casburn Mfg174 Century Systems83 99 168 Champion Model Products155 Cheveron183 Circus Hobbies100-101 Cleveland Model Supply138 Eric Clutton179 CompuServe154 Coverite22-23 Cox Hobbies85 DC Aviation177 DGA Designs42 D&R Aircraft Mfg4 Davey Systems Corp18 Davis Diesel Development20 Dodgson Designs150 Dougs Hobby Shop163-167 Al Doyle184 Dry Ridge Models160 Du-Bro Products Inc13 16 EHS Trading Ltd158 Expressive Image Studios176 FAI Model Supply157 FHS Supply Inc5 Fiberglass Master161 Flight Lab182 Flyline Models161 Foam Scale Models157 Fourmost Products40 Futaba Corp America21 GM Precision Products136 Gator RC Products171 Carl Goldberg Models117170 Golden Gate East150 Gorham Model Products7158 Helicopters Unlimited11 High Performance Models160 Harry Higley & Son176 Historic Aviation35 Hobby Barn137 Hobby Horn144 Hobby Lobby International161 Hobbypoxy Products184 Hobby Radio178 Hobby Woods 99 Ikon Northwest Co162 Indy RC Sales Inc140-142 International Modeler Show149 Jan Crystals18 Larry Jolly Model Products144 Jomar177 JTecss K&B Mfg159 K&S Engineering55 K W Enterprises184 Kirks Sportsworld15 Kookaburra Tech Pubs172 Kraft Midwest138 Kustom Kraftsmanship159 Kyosho88 Lake Enterprises156 Leisure Electronics145 Loctite33 Lone Star Models139 MACS Products177 MGA Enterprises148 Mafts Model Airplanes159 McDaniel RC Service44 Memories Keep179 Messers Qual Model Prod178 Micro Mark41 Midwest Products Co87 Model Box180 Model Rectifier CorpCoy 2 & 319 Sid Morgan Plans151 Mutchlers Hobbies146-147 NEPRO155 NW Model Expo153 Navillus Industries42 Northeast Aerodynamics172 Northeast Screen Graphics49 Nostalg-Air182 OS Engines187 Pacer Technology53 109 Pelican Enterprises180 Penn International Chem55 Penn Valley Hobby Center174 Pica Products152 Polks Hobby94-96 Pot 0 Gold Show10 Progress Mfg Co151 Pro-Tune Corp42 RC Buyers Guide181 RC Extras150 RN Models148 Red Max Fuel5 Repla-Tech International178 Robbe Modellsport16 102 SR Batteries179 Safety Plus136 Satellite City Scale Plans Photo Service179 Sermos RC Snap Connectors178 Shamrock Competition Imports155 Sheldons Hobby Shop20 Sig Mfg Co912 Sky-High Enterprise144 Bob Smith Industries40 49 Spirit Lake Hobbies20 Star Base Exchange158 Sunshine Hobbies107 Swanson Assoc160 Tatone Products Co40 Toledo RC Exposition53 Top Flite Models Inc110 Tower Hobbies175 Tru-Turn157 VK Model Aircraft Co151 VL Products34 Victor Engineering162 WE Technical Services8 WRAM Show173 WW Aeroplanes180 Wandit Mfg160 Williams Brothers34 Wilshire Model Center33 Windsor Propeller Co143 Wing Mfg Co10 World Class150 World EnginesCover 4 YSFutaba169 Yale Hobby Mfg Inc188 Zenith Aviation39 Zimpro Marketing .8 Nick Ziroli Models138 could match Bobs max would soon Wakefield Champ Seven-minute round As final show down arrived emotions running high Bob White again stood threshold realizing dream Always world-class Bob has come close championship status number times Anxiously preparing nearbyand filled apparent disbelief opportunitywas Rozycki recently placed third Eastern Bloc Championships coincidence Polish Ameri can timekeeper picked last round under circumstances FAI jury requested redraw 840 pm ready Stephan picked moment January 1988 185 FULL-SIZE PLANS No 575 Scorpion 60$1150 RC Fun-fly aerobatic plane 60 power spans 58 No 576 Serendipity$325 FF Indoor EZB record-holder spans l77/s No 577 HaIflite$225 CL Combat plane has foam wing spans 30 No193 No 239 No 262 No 310 No 314 No 326 No 332 No 386 No414 No 440 No 447 No 454 No 457 No 460 No 466 No 478 No 490 No 499 No 502 No 503 No 506 No 512 No 514 No 521 No 522 No 523 No 525 No 528 No 531 No 533 No 534 No 535 No 538 No 537 No 539 No 540 No 541 NO 542 No 544 No 545 No 546 No 547 No 546 No 549 No 550 No 551 No 552 No 553 No 554 No 555 No 556 No 557 No 555 No 559 No 560 No 561 No 562 No 553 No 564 No 565 No 566 No 557 No 56$ No 569 No 570 No 571 No 572 No 573 No 574 Stiletto Cl Stant medef McDonald winner 1970 1980 1952 FAI ydndd Champs $ 375 Blue Birde 60 Ken Willards faematinn plane 4-channel 10115 power $ 375 Creglameeter CL Crash-prant trainer twa sizesi V30 35140 pawer $ 125 1930 Fleet BIplane 60 Sport Scale far 35/40 4-channel Wlngapan 50 scale Twa aheeta S 625 Drake II RC Ken Vtlfiarda flying bent far 3-channel 15-pawer Fly fram land removable gear 8 375 Taylor Cub 60 Dan Sinus Schanlyard-Scale DOgs 2-3 channel Spans 50 in $ 350 Zephyr 60 Small 2-channel glider tar hand-launch nr tew thermal alope sawing * 200 Laeer 200 RC Sport Scale replica champinnuhip Aerabatic flier Uses 40 pnwer 4-5 channel Twa sheets $ 1075 Elengrlc Sparky 60 Electric fan flier far 05 motar 3-channel R scalild-ep 1935 rabber-pawer tenants$ 8 50 CavalIer 60 Old-lireer-lIke new design has huge wing far slam easy flighls Far 35 pwr 3 ch Two sheets$ 1725 1/2A Mlee Amerlce RC Old-Timer Texaca madel far D4Sglaw 2-channels$ 650 Sweet P40 FF Neat slick-sad-Susan Outdoar Rubber F-3D-class medel cantest-winner.. $ 200 Spectra 60 ElectrIc-power far 05-size mater uses 3 ditfereet wings tar sport enadag aerabahcs S 700 4-40 RC Shaulder-wing apart flier far 4-cycle 40-size engine 4 channels 6 650 Blue Hex II 60 Fan-fly spartater far 40-size engines spain 52 Lightweight strectam S 700 Buttercup RC Cute elSa spartater uses micra 2-ch 60 ar pulse-redder Spans 27 far 020035 power S 300 Weekender 60 Low-wing sport flier far 20-size 4-strake engine spans 47 $ 575 4-60 60 Dec Mathews great sport flier far 00-size fuar-atraker engine spans 70 Two sheets $ 1275 BIll WInters Vagabond FP Sparsater down-shad 02-powered nersien 1940s plane Spans 33 Kr$225 Buzzbat 60 Siege-soarer apsas 60 uses 2 60 channels $ 750 Playranete 60 Sport flier far 3 00 channels 15/25-she engines spaus 50 in$ xam 230 60 Giant Scale acrebatic plane spans 6 ft cues 055dm engine Two plan sheets $ 1098 Henry T 60 Sportster 2-3 channel RC spans 52 has adjustable wing flapo S 475 Comet Jr ClIpper Plue 35% 60 Old-limer spartater far engine 2-ch 60 apaus 48 hr 8 650 Sorta Pltte 60 Reminder-scale bipe far 45160 engines spans 43 Twa plan sheets 8 1050 Dawnwalker- FF Sopodight UnllmSed4duleihill rabber-pawered campefition plane apses 42 Kr S 4 00 HI-Tech 2002 60 Canard dusted-fan 45 engines spaus 39 Two sheets $ 1000 Swallow 60 Lightweight haldagger far 40-size faur-strela engines upaus 58 inS 9 25 Terrible Coupe FF Rubber-pawerad Coupe ditiver spans 48 cantast-winnnr S 475 Ceesasa C-37 60 Scheolyard Scale ef famous 30s plane fur 049110 power 2-ch apses 42 an S 500 1938 ChaHeeger 60 Teasco Dld-flmar spans 47 Ia far 048 engine 2-channel60S 550 Atrlx 60 AMA Claus D Sailplane spans 110 nses 4-channel 60 system. S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish 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BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU 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Spans 27 far 020035 power S 300 Weekender 60 Low-wing sport flier far 20-size 4-strake engine spans 47 $ 575 4-60 60 Dec Mathews great sport flier far 00-size fuar-atraker engine spans 70 Two sheets $ 1275 BIll WInters Vagabond FP Sparsater down-shad 02-powered nersien 1940s plane Spans 33 Kr$225 Buzzbat 60 Siege-soarer apsas 60 uses 2 60 channels $ 750 Playranete 60 Sport flier far 3 00 channels 15/25-she engines spaus 50 in$ xam 230 60 Giant Scale acrebatic plane spans 6 ft cues 055dm engine Two plan sheets $ 1098 Henry T 60 Sportster 2-3 channel RC spans 52 has adjustable wing flapo S 475 Comet Jr ClIpper Plue 35% 60 Old-limer spartater far engine 2-ch 60 apaus 48 hr 8 650 Sorta Pltte 60 Reminder-scale bipe far 45160 engines spans 43 Twa plan sheets 8 1050 Dawnwalker- FF Sopodight UnllmSed4duleihill rabber-pawered campefition plane apses 42 Kr S 4 00 HI-Tech 2002 60 Canard dusted-fan 45 engines spaus 39 Two sheets $ 1000 Swallow 60 Lightweight haldagger far 40-size faur-strela 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S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish outlasts outshines others dont like brag. BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC Syetem NICd Batteries chargers need packagel CyclerCharge$19995 00i Fits 48V Rn 96V Tx packsPlus $5 S&HGelled Cell Others available write call Regular Model$3995 ForPlus $2 S&H ld kit smallPlus $2 S&H electric boat battenesSpecify 6 12 24V Heavy Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssEieetomsasonPO Box 221 6059875924Dealer squlnes tinned Canton SD 57013 HOBBYPOXY TRUE TW0PART EPOXY PAINTS 16 COLORS R ER EPOXY GLUES FOUR FORMULAS 5MIN 10 45-MIN FAST FILL GRAIN FILLER QUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE MOBBYPOXY DiVISION Petit Petit company 36 Pine Street Roclwaay NJ oae6 $100 BLUE tttDicatalog RJDOE MACHINERY&TOOL8 P0 Box 536-Y Hurricane WV 25526 304-562-3535 offer compiete selection iathes mills tools Aviation Modeier IMPORTED DIESELS AMAuroraDCEOMVVSMNSCEflYa PAWTapIIn Standard & RIC.OIO40 Aero ne VlntageSport & Contest Send 8100 Informatiom CARLSON ENGINE IMPORTS 614 East Marconi Phoenix AZ 85022 Send SSAE coining sheet nut complete line ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX 4-M Company AH Designs49 AJ Products150 AMA Membership45 Ace Radio Control47 179 Aerodrome Models Ltd47 Aero-Fab178 Aerospace Composite Products179 Air Champ Models152 Airtronics2 American Jr Aircraft Co176 Applied Design18 Astro Flight4 Authorized RC Service12 Aviators Guide43 BC Products172 Beer Can Bombers160 Blackbird International79 Blue Ridge Machinery & Tools184 Bolar Heli Resesarch178 Bradley Products136 Dave Brown Products44 Bru Line Industries44 Byron Originals80-81 Ca Ra Products184 California Model Imports16 Campbell Tools Co178 Caarlson Engine Imports184 Johnny Casburn Mfg174 Century Systems83 99 168 Champion Model Products155 Cheveron183 Circus Hobbies100-101 Cleveland Model Supply138 Eric Clutton179 CompuServe154 Coverite22-23 Cox Hobbies85 DC Aviation177 DGA Designs42 D&R Aircraft Mfg4 Davey Systems Corp18 Davis 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Products177 MGA Enterprises148 Mafts Model Airplanes159 McDaniel RC Service44 Memories Keep179 Messers Qual Model Prod178 Micro Mark41 Midwest Products Co87 Model Box180 Model Rectifier CorpCoy 2 & 319 Sid Morgan Plans151 Mutchlers Hobbies146-147 NEPRO155 NW Model Expo153 Navillus Industries42 Northeast Aerodynamics172 Northeast Screen Graphics49 Nostalg-Air182 OS Engines187 Pacer Technology53 109 Pelican Enterprises180 Penn International Chem55 Penn Valley Hobby Center174 Pica Products152 Polks Hobby94-96 Pot 0 Gold Show10 Progress Mfg Co151 Pro-Tune Corp42 RC Buyers Guide181 RC Extras150 RN Models148 Red Max Fuel5 Repla-Tech International178 Robbe Modellsport16 102 SR Batteries179 Safety Plus136 Satellite City Scale Plans Photo Service179 Sermos RC Snap Connectors178 Shamrock Competition Imports155 Sheldons Hobby Shop20 Sig Mfg Co912 Sky-High Enterprise144 Bob Smith Industries40 49 Spirit Lake Hobbies20 Star Base Exchange158 Sunshine Hobbies107 Swanson Assoc160 Tatone Products Co40 Toledo RC Exposition53 Top Flite Models Inc110 Tower Hobbies175 Tru-Turn157 VK Model Aircraft Co151 VL Products34 Victor Engineering162 WE Technical Services8 WRAM Show173 WW Aeroplanes180 Wandit Mfg160 Williams Brothers34 Wilshire Model Center33 Windsor Propeller Co143 Wing Mfg Co10 World Class150 World EnginesCover 4 YSFutaba169 Yale Hobby Mfg Inc188 Zenith Aviation39 Zimpro Marketing .8 Nick Ziroli Models138 could match Bobs max would soon Wakefield Champ Seven-minute round As final show down arrived emotions running high Bob White again stood threshold realizing dream Always world-class Bob has come close championship status number times Anxiously preparing nearbyand filled apparent disbelief opportunitywas Rozycki recently placed third Eastern Bloc Championships coincidence Polish Ameri can timekeeper picked last round under circumstances FAI jury requested redraw 840 pm ready Stephan picked moment January 1988 185 FULL-SIZE PLANS No 575 Scorpion 60$1150 RC Fun-fly aerobatic plane 60 power spans 58 No 576 Serendipity$325 FF Indoor EZB record-holder spans l77/s No 577 HaIflite$225 CL Combat plane has foam wing spans 30 No193 No 239 No 262 No 310 No 314 No 326 No 332 No 386 No414 No 440 No 447 No 454 No 457 No 460 No 466 No 478 No 490 No 499 No 502 No 503 No 506 No 512 No 514 No 521 No 522 No 523 No 525 No 528 No 531 No 533 No 534 No 535 No 538 No 537 No 539 No 540 No 541 NO 542 No 544 No 545 No 546 No 547 No 546 No 549 No 550 No 551 No 552 No 553 No 554 No 555 No 556 No 557 No 555 No 559 No 560 No 561 No 562 No 553 No 564 No 565 No 566 No 557 No 56$ No 569 No 570 No 571 No 572 No 573 No 574 Stiletto Cl Stant medef McDonald winner 1970 1980 1952 FAI ydndd Champs $ 375 Blue Birde 60 Ken Willards faematinn plane 4-channel 10115 power $ 375 Creglameeter CL Crash-prant trainer twa sizesi V30 35140 pawer $ 125 1930 Fleet BIplane 60 Sport Scale far 35/40 4-channel Wlngapan 50 scale Twa aheeta S 625 Drake II RC Ken Vtlfiarda flying bent far 3-channel 15-pawer Fly fram land removable gear 8 375 Taylor Cub 60 Dan Sinus Schanlyard-Scale DOgs 2-3 channel Spans 50 in $ 350 Zephyr 60 Small 2-channel glider tar hand-launch nr tew thermal alope sawing * 200 Laeer 200 RC Sport Scale replica champinnuhip Aerabatic flier Uses 40 pnwer 4-5 channel Twa sheets $ 1075 Elengrlc Sparky 60 Electric fan flier far 05 motar 3-channel R scalild-ep 1935 rabber-pawer tenants$ 8 50 CavalIer 60 Old-lireer-lIke new design has huge wing far slam easy flighls Far 35 pwr 3 ch Two sheets$ 1725 1/2A Mlee Amerlce RC Old-Timer Texaca madel far D4Sglaw 2-channels$ 650 Sweet P40 FF Neat slick-sad-Susan Outdoar Rubber F-3D-class medel cantest-winner.. $ 200 Spectra 60 ElectrIc-power far 05-size mater uses 3 ditfereet wings tar sport enadag aerabahcs S 700 4-40 RC Shaulder-wing apart flier far 4-cycle 40-size engine 4 channels 6 650 Blue Hex II 60 Fan-fly spartater far 40-size engines spain 52 Lightweight strectam S 700 Buttercup RC Cute elSa spartater uses micra 2-ch 60 ar pulse-redder Spans 27 far 020035 power S 300 Weekender 60 Low-wing sport flier far 20-size 4-strake engine spans 47 $ 575 4-60 60 Dec Mathews great sport flier far 00-size fuar-atraker engine spans 70 Two sheets $ 1275 BIll WInters Vagabond FP Sparsater down-shad 02-powered nersien 1940s plane Spans 33 Kr$225 Buzzbat 60 Siege-soarer apsas 60 uses 2 60 channels $ 750 Playranete 60 Sport flier far 3 00 channels 15/25-she engines spaus 50 in$ xam 230 60 Giant Scale acrebatic plane spans 6 ft cues 055dm engine Two plan sheets $ 1098 Henry T 60 Sportster 2-3 channel RC spans 52 has adjustable wing flapo S 475 Comet Jr ClIpper Plue 35% 60 Old-limer spartater far engine 2-ch 60 apaus 48 hr 8 650 Sorta Pltte 60 Reminder-scale bipe far 45160 engines spans 43 Twa plan sheets 8 1050 Dawnwalker- FF Sopodight UnllmSed4duleihill rabber-pawered campefition plane apses 42 Kr S 4 00 HI-Tech 2002 60 Canard dusted-fan 45 engines spaus 39 Two sheets $ 1000 Swallow 60 Lightweight haldagger far 40-size faur-strela engines upaus 58 inS 9 25 Terrible Coupe FF Rubber-pawerad Coupe ditiver spans 48 cantast-winnnr S 475 Ceesasa C-37 60 Scheolyard Scale ef famous 30s plane fur 049110 power 2-ch apses 42 an S 500 1938 ChaHeeger 60 Teasco Dld-flmar spans 47 Ia far 048 engine 2-channel60S 550 Atrlx 60 AMA Claus D Sailplane spans 110 nses 4-channel 60 system. S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish 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BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC Syetem NICd Batteries chargers need packagel CyclerCharge$19995 00i Fits 48V Rn 96V Tx packsPlus $5 S&HGelled Cell Others available write call Regular Model$3995 ForPlus $2 S&H ld kit smallPlus $2 S&H electric boat battenesSpecify 6 12 24V Heavy Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssEieetomsasonPO Box 221 6059875924Dealer squlnes tinned Canton SD 57013 HOBBYPOXY TRUE TW0PART EPOXY PAINTS 16 COLORS R ER EPOXY GLUES FOUR FORMULAS 5MIN 10 45-MIN FAST FILL GRAIN FILLER QUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE MOBBYPOXY DiVISION Petit Petit company 36 Pine Street Roclwaay NJ oae6 $100 BLUE tttDicatalog RJDOE MACHINERY&TOOL8 P0 Box 536-Y Hurricane WV 25526 304-562-3535 offer compiete selection iathes mills tools Aviation Modeier IMPORTED DIESELS AMAuroraDCEOMVVSMNSCEflYa PAWTapIIn Standard & RIC.OIO40 Aero ne VlntageSport & Contest Send 8100 Informatiom CARLSON ENGINE IMPORTS 614 East Marconi Phoenix AZ 85022 Send SSAE coining sheet nut complete line ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX 4-M Company AH Designs49 AJ Products150 AMA Membership45 Ace Radio Control47 179 Aerodrome Models Ltd47 Aero-Fab178 Aerospace Composite Products179 Air Champ Models152 Airtronics2 American Jr Aircraft Co176 Applied Design18 Astro Flight4 Authorized RC Service12 Aviators Guide43 BC Products172 Beer Can Bombers160 Blackbird International79 Blue Ridge Machinery & Tools184 Bolar Heli Resesarch178 Bradley Products136 Dave Brown Products44 Bru Line Industries44 Byron Originals80-81 Ca Ra Products184 California Model Imports16 Campbell Tools Co178 Caarlson Engine Imports184 Johnny Casburn Mfg174 Century Systems83 99 168 Champion Model Products155 Cheveron183 Circus Hobbies100-101 Cleveland Model Supply138 Eric Clutton179 CompuServe154 Coverite22-23 Cox Hobbies85 DC Aviation177 DGA Designs42 D&R Aircraft Mfg4 Davey Systems Corp18 Davis Diesel Development20 Dodgson Designs150 Dougs Hobby Shop163-167 Al Doyle184 Dry Ridge Models160 Du-Bro Products Inc13 16 EHS Trading Ltd158 Expressive Image Studios176 FAI Model Supply157 FHS Supply Inc5 Fiberglass Master161 Flight Lab182 Flyline Models161 Foam Scale Models157 Fourmost Products40 Futaba Corp America21 GM Precision Products136 Gator RC Products171 Carl Goldberg Models117170 Golden Gate East150 Gorham Model Products7158 Helicopters Unlimited11 High Performance Models160 Harry Higley & Son176 Historic Aviation35 Hobby Barn137 Hobby Horn144 Hobby Lobby International161 Hobbypoxy Products184 Hobby Radio178 Hobby Woods 99 Ikon Northwest Co162 Indy RC Sales Inc140-142 International Modeler Show149 Jan Crystals18 Larry Jolly Model Products144 Jomar177 JTecss K&B Mfg159 K&S Engineering55 K W Enterprises184 Kirks Sportsworld15 Kookaburra Tech Pubs172 Kraft Midwest138 Kustom Kraftsmanship159 Kyosho88 Lake Enterprises156 Leisure Electronics145 Loctite33 Lone Star Models139 MACS Products177 MGA Enterprises148 Mafts Model Airplanes159 McDaniel RC Service44 Memories Keep179 Messers Qual Model Prod178 Micro Mark41 Midwest Products Co87 Model Box180 Model Rectifier CorpCoy 2 & 319 Sid Morgan Plans151 Mutchlers Hobbies146-147 NEPRO155 NW Model Expo153 Navillus Industries42 Northeast Aerodynamics172 Northeast Screen Graphics49 Nostalg-Air182 OS Engines187 Pacer Technology53 109 Pelican Enterprises180 Penn International Chem55 Penn Valley Hobby Center174 Pica Products152 Polks Hobby94-96 Pot 0 Gold Show10 Progress Mfg Co151 Pro-Tune Corp42 RC Buyers Guide181 RC Extras150 RN Models148 Red Max Fuel5 Repla-Tech International178 Robbe Modellsport16 102 SR Batteries179 Safety Plus136 Satellite City Scale Plans Photo Service179 Sermos RC Snap Connectors178 Shamrock Competition Imports155 Sheldons Hobby Shop20 Sig Mfg Co912 Sky-High Enterprise144 Bob Smith Industries40 49 Spirit Lake Hobbies20 Star Base Exchange158 Sunshine Hobbies107 Swanson Assoc160 Tatone Products Co40 Toledo RC Exposition53 Top Flite Models Inc110 Tower Hobbies175 Tru-Turn157 VK Model Aircraft Co151 VL Products34 Victor Engineering162 WE Technical Services8 WRAM Show173 WW Aeroplanes180 Wandit Mfg160 Williams Brothers34 Wilshire Model Center33 Windsor Propeller Co143 Wing Mfg Co10 World Class150 World EnginesCover 4 YSFutaba169 Yale Hobby Mfg Inc188 Zenith Aviation39 Zimpro Marketing .8 Nick Ziroli Models138 could match Bobs max would soon Wakefield Champ Seven-minute round As final show down arrived emotions running high Bob White again stood threshold realizing dream Always world-class Bob has come close championship status number times Anxiously preparing nearbyand filled apparent disbelief opportunitywas Rozycki recently placed third Eastern Bloc Championships coincidence Polish Ameri can timekeeper picked last round under circumstances FAI jury requested redraw 840 pm ready Stephan picked moment January 1988 185 FULL-SIZE PLANS No 575 Scorpion 60$1150 RC Fun-fly aerobatic plane 60 power spans 58 No 576 Serendipity$325 FF Indoor EZB record-holder spans l77/s No 577 HaIflite$225 CL Combat plane has foam wing spans 30 No193 No 239 No 262 No 310 No 314 No 326 No 332 No 386 No414 No 440 No 447 No 454 No 457 No 460 No 466 No 478 No 490 No 499 No 502 No 503 No 506 No 512 No 514 No 521 No 522 No 523 No 525 No 528 No 531 No 533 No 534 No 535 No 538 No 537 No 539 No 540 No 541 NO 542 No 544 No 545 No 546 No 547 No 546 No 549 No 550 No 551 No 552 No 553 No 554 No 555 No 556 No 557 No 555 No 559 No 560 No 561 No 562 No 553 No 564 No 565 No 566 No 557 No 56$ No 569 No 570 No 571 No 572 No 573 No 574 Stiletto Cl Stant medef McDonald winner 1970 1980 1952 FAI ydndd Champs $ 375 Blue Birde 60 Ken Willards faematinn plane 4-channel 10115 power $ 375 Creglameeter CL Crash-prant trainer twa sizesi V30 35140 pawer $ 125 1930 Fleet BIplane 60 Sport Scale far 35/40 4-channel Wlngapan 50 scale Twa aheeta S 625 Drake II RC Ken Vtlfiarda flying bent far 3-channel 15-pawer Fly fram land removable gear 8 375 Taylor Cub 60 Dan Sinus Schanlyard-Scale DOgs 2-3 channel Spans 50 in $ 350 Zephyr 60 Small 2-channel glider tar hand-launch nr tew thermal alope sawing * 200 Laeer 200 RC Sport Scale replica champinnuhip Aerabatic flier Uses 40 pnwer 4-5 channel Twa sheets $ 1075 Elengrlc Sparky 60 Electric fan flier far 05 motar 3-channel R scalild-ep 1935 rabber-pawer tenants$ 8 50 CavalIer 60 Old-lireer-lIke new design has huge wing far slam easy flighls Far 35 pwr 3 ch Two sheets$ 1725 1/2A Mlee Amerlce RC Old-Timer Texaca madel far D4Sglaw 2-channels$ 650 Sweet P40 FF Neat slick-sad-Susan Outdoar Rubber F-3D-class medel cantest-winner.. $ 200 Spectra 60 ElectrIc-power far 05-size mater uses 3 ditfereet wings tar sport enadag aerabahcs S 700 4-40 RC Shaulder-wing apart flier far 4-cycle 40-size engine 4 channels 6 650 Blue Hex II 60 Fan-fly spartater far 40-size engines spain 52 Lightweight strectam S 700 Buttercup RC Cute elSa spartater uses micra 2-ch 60 ar pulse-redder Spans 27 far 020035 power S 300 Weekender 60 Low-wing sport flier far 20-size 4-strake engine spans 47 $ 575 4-60 60 Dec Mathews great sport flier far 00-size fuar-atraker engine spans 70 Two sheets $ 1275 BIll WInters Vagabond FP Sparsater down-shad 02-powered nersien 1940s plane Spans 33 Kr$225 Buzzbat 60 Siege-soarer apsas 60 uses 2 60 channels $ 750 Playranete 60 Sport flier far 3 00 channels 15/25-she engines spaus 50 in$ xam 230 60 Giant Scale acrebatic plane spans 6 ft cues 055dm engine Two plan sheets $ 1098 Henry T 60 Sportster 2-3 channel RC spans 52 has adjustable wing flapo S 475 Comet Jr ClIpper Plue 35% 60 Old-limer spartater far engine 2-ch 60 apaus 48 hr 8 650 Sorta Pltte 60 Reminder-scale bipe far 45160 engines spans 43 Twa plan sheets 8 1050 Dawnwalker- FF Sopodight UnllmSed4duleihill rabber-pawered campefition plane apses 42 Kr S 4 00 HI-Tech 2002 60 Canard dusted-fan 45 engines spaus 39 Two sheets $ 1000 Swallow 60 Lightweight haldagger far 40-size faur-strela engines upaus 58 inS 9 25 Terrible Coupe FF Rubber-pawerad Coupe ditiver spans 48 cantast-winnnr S 475 Ceesasa C-37 60 Scheolyard Scale ef famous 30s plane fur 049110 power 2-ch apses 42 an S 500 1938 ChaHeeger 60 Teasco Dld-flmar spans 47 Ia far 048 engine 2-channel60S 550 Atrlx 60 AMA Claus D Sailplane spans 110 nses 4-channel 60 system. S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish 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BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU 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engines upaus 58 inS 9 25 Terrible Coupe FF Rubber-pawerad Coupe ditiver spans 48 cantast-winnnr S 475 Ceesasa C-37 60 Scheolyard Scale ef famous 30s plane fur 049110 power 2-ch apses 42 an S 500 1938 ChaHeeger 60 Teasco Dld-flmar spans 47 Ia far 048 engine 2-channel60S 550 Atrlx 60 AMA Claus D Sailplane spans 110 nses 4-channel 60 system. S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish outlasts outshines others dont like brag. BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC Syetem NICd Batteries chargers need packagel CyclerCharge$19995 00i Fits 48V Rn 96V Tx packsPlus $5 S&HGelled Cell Others available write call Regular Model$3995 ForPlus $2 S&H ld kit smallPlus $2 S&H electric boat battenesSpecify 6 12 24V Heavy Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssEieetomsasonPO Box 221 6059875924Dealer squlnes tinned Canton SD 57013 HOBBYPOXY TRUE TW0PART EPOXY PAINTS 16 COLORS R ER EPOXY GLUES FOUR FORMULAS 5MIN 10 45-MIN FAST FILL GRAIN FILLER QUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE MOBBYPOXY DiVISION Petit Petit company 36 Pine Street Roclwaay NJ oae6 $100 BLUE tttDicatalog RJDOE MACHINERY&TOOL8 P0 Box 536-Y Hurricane WV 25526 304-562-3535 offer compiete selection iathes mills tools Aviation Modeier IMPORTED DIESELS AMAuroraDCEOMVVSMNSCEflYa PAWTapIIn Standard & RIC.OIO40 Aero ne VlntageSport & Contest Send 8100 Informatiom CARLSON ENGINE IMPORTS 614 East Marconi Phoenix AZ 85022 Send SSAE coining sheet nut complete line ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX 4-M Company AH Designs49 AJ Products150 AMA Membership45 Ace Radio Control47 179 Aerodrome Models Ltd47 Aero-Fab178 Aerospace Composite Products179 Air Champ Models152 Airtronics2 American Jr Aircraft Co176 Applied Design18 Astro Flight4 Authorized RC Service12 Aviators Guide43 BC Products172 Beer Can Bombers160 Blackbird International79 Blue Ridge Machinery & Tools184 Bolar Heli Resesarch178 Bradley Products136 Dave Brown Products44 Bru Line Industries44 Byron Originals80-81 Ca Ra Products184 California Model Imports16 Campbell Tools Co178 Caarlson Engine Imports184 Johnny Casburn Mfg174 Century Systems83 99 168 Champion Model Products155 Cheveron183 Circus Hobbies100-101 Cleveland Model Supply138 Eric Clutton179 CompuServe154 Coverite22-23 Cox Hobbies85 DC Aviation177 DGA Designs42 D&R Aircraft Mfg4 Davey Systems Corp18 Davis 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Products177 MGA Enterprises148 Mafts Model Airplanes159 McDaniel RC Service44 Memories Keep179 Messers Qual Model Prod178 Micro Mark41 Midwest Products Co87 Model Box180 Model Rectifier CorpCoy 2 & 319 Sid Morgan Plans151 Mutchlers Hobbies146-147 NEPRO155 NW Model Expo153 Navillus Industries42 Northeast Aerodynamics172 Northeast Screen Graphics49 Nostalg-Air182 OS Engines187 Pacer Technology53 109 Pelican Enterprises180 Penn International Chem55 Penn Valley Hobby Center174 Pica Products152 Polks Hobby94-96 Pot 0 Gold Show10 Progress Mfg Co151 Pro-Tune Corp42 RC Buyers Guide181 RC Extras150 RN Models148 Red Max Fuel5 Repla-Tech International178 Robbe Modellsport16 102 SR Batteries179 Safety Plus136 Satellite City Scale Plans Photo Service179 Sermos RC Snap Connectors178 Shamrock Competition Imports155 Sheldons Hobby Shop20 Sig Mfg Co912 Sky-High Enterprise144 Bob Smith Industries40 49 Spirit Lake Hobbies20 Star Base Exchange158 Sunshine Hobbies107 Swanson Assoc160 Tatone Products Co40 Toledo RC Exposition53 Top Flite Models Inc110 Tower Hobbies175 Tru-Turn157 VK Model Aircraft Co151 VL Products34 Victor Engineering162 WE Technical Services8 WRAM Show173 WW Aeroplanes180 Wandit Mfg160 Williams Brothers34 Wilshire Model Center33 Windsor Propeller Co143 Wing Mfg Co10 World Class150 World EnginesCover 4 YSFutaba169 Yale Hobby Mfg Inc188 Zenith Aviation39 Zimpro Marketing .8 Nick Ziroli Models138 could match Bobs max would soon Wakefield Champ Seven-minute round As final show down arrived emotions running high Bob White again stood threshold realizing dream Always world-class Bob has come close championship status number times Anxiously preparing nearbyand filled apparent disbelief opportunitywas Rozycki recently placed third Eastern Bloc Championships coincidence Polish Ameri can timekeeper picked last round under circumstances FAI jury requested redraw 840 pm ready Stephan picked moment January 1988 185 FULL-SIZE PLANS No 575 Scorpion 60$1150 RC Fun-fly aerobatic plane 60 power spans 58 No 576 Serendipity$325 FF Indoor EZB record-holder spans l77/s No 577 HaIflite$225 CL Combat plane has foam wing spans 30 No193 No 239 No 262 No 310 No 314 No 326 No 332 No 386 No414 No 440 No 447 No 454 No 457 No 460 No 466 No 478 No 490 No 499 No 502 No 503 No 506 No 512 No 514 No 521 No 522 No 523 No 525 No 528 No 531 No 533 No 534 No 535 No 538 No 537 No 539 No 540 No 541 NO 542 No 544 No 545 No 546 No 547 No 546 No 549 No 550 No 551 No 552 No 553 No 554 No 555 No 556 No 557 No 555 No 559 No 560 No 561 No 562 No 553 No 564 No 565 No 566 No 557 No 56$ No 569 No 570 No 571 No 572 No 573 No 574 Stiletto Cl Stant medef McDonald winner 1970 1980 1952 FAI ydndd Champs $ 375 Blue Birde 60 Ken Willards faematinn plane 4-channel 10115 power $ 375 Creglameeter CL Crash-prant trainer twa sizesi V30 35140 pawer $ 125 1930 Fleet BIplane 60 Sport Scale far 35/40 4-channel Wlngapan 50 scale Twa aheeta S 625 Drake II RC Ken Vtlfiarda flying bent far 3-channel 15-pawer Fly fram land removable gear 8 375 Taylor Cub 60 Dan Sinus Schanlyard-Scale DOgs 2-3 channel Spans 50 in $ 350 Zephyr 60 Small 2-channel glider tar hand-launch nr tew thermal alope sawing * 200 Laeer 200 RC Sport Scale replica champinnuhip Aerabatic flier Uses 40 pnwer 4-5 channel Twa sheets $ 1075 Elengrlc Sparky 60 Electric fan flier far 05 motar 3-channel R scalild-ep 1935 rabber-pawer tenants$ 8 50 CavalIer 60 Old-lireer-lIke new design has huge wing far slam easy flighls Far 35 pwr 3 ch Two sheets$ 1725 1/2A Mlee Amerlce RC Old-Timer Texaca madel far D4Sglaw 2-channels$ 650 Sweet P40 FF Neat slick-sad-Susan Outdoar Rubber F-3D-class medel cantest-winner.. $ 200 Spectra 60 ElectrIc-power far 05-size mater uses 3 ditfereet wings tar sport enadag aerabahcs S 700 4-40 RC Shaulder-wing apart flier far 4-cycle 40-size engine 4 channels 6 650 Blue Hex II 60 Fan-fly spartater far 40-size engines spain 52 Lightweight strectam S 700 Buttercup RC Cute elSa spartater uses micra 2-ch 60 ar pulse-redder Spans 27 far 020035 power S 300 Weekender 60 Low-wing sport flier far 20-size 4-strake engine spans 47 $ 575 4-60 60 Dec Mathews great sport flier far 00-size fuar-atraker engine spans 70 Two sheets $ 1275 BIll WInters Vagabond FP Sparsater down-shad 02-powered nersien 1940s plane Spans 33 Kr$225 Buzzbat 60 Siege-soarer apsas 60 uses 2 60 channels $ 750 Playranete 60 Sport flier far 3 00 channels 15/25-she engines spaus 50 in$ xam 230 60 Giant Scale acrebatic plane spans 6 ft cues 055dm engine Two plan sheets $ 1098 Henry T 60 Sportster 2-3 channel RC spans 52 has adjustable wing flapo S 475 Comet Jr ClIpper Plue 35% 60 Old-limer spartater far engine 2-ch 60 apaus 48 hr 8 650 Sorta Pltte 60 Reminder-scale bipe far 45160 engines spans 43 Twa plan sheets 8 1050 Dawnwalker- FF Sopodight UnllmSed4duleihill rabber-pawered campefition plane apses 42 Kr S 4 00 HI-Tech 2002 60 Canard dusted-fan 45 engines spaus 39 Two sheets $ 1000 Swallow 60 Lightweight haldagger far 40-size faur-strela engines upaus 58 inS 9 25 Terrible Coupe FF Rubber-pawerad Coupe ditiver spans 48 cantast-winnnr S 475 Ceesasa C-37 60 Scheolyard Scale ef famous 30s plane fur 049110 power 2-ch apses 42 an S 500 1938 ChaHeeger 60 Teasco Dld-flmar spans 47 Ia far 048 engine 2-channel60S 550 Atrlx 60 AMA Claus D Sailplane spans 110 nses 4-channel 60 system. S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish 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BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC Syetem NICd Batteries chargers need packagel CyclerCharge$19995 00i Fits 48V Rn 96V Tx packsPlus $5 S&HGelled Cell Others available write call Regular Model$3995 ForPlus $2 S&H ld kit smallPlus $2 S&H electric boat battenesSpecify 6 12 24V Heavy Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssEieetomsasonPO Box 221 6059875924Dealer squlnes tinned Canton SD 57013 HOBBYPOXY TRUE TW0PART EPOXY PAINTS 16 COLORS R ER EPOXY GLUES FOUR FORMULAS 5MIN 10 45-MIN FAST FILL GRAIN FILLER QUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE MOBBYPOXY DiVISION Petit Petit company 36 Pine Street Roclwaay NJ oae6 $100 BLUE tttDicatalog RJDOE MACHINERY&TOOL8 P0 Box 536-Y Hurricane WV 25526 304-562-3535 offer compiete selection iathes mills tools Aviation Modeier IMPORTED DIESELS AMAuroraDCEOMVVSMNSCEflYa PAWTapIIn Standard & RIC.OIO40 Aero ne VlntageSport & Contest Send 8100 Informatiom CARLSON ENGINE IMPORTS 614 East Marconi Phoenix AZ 85022 Send SSAE coining sheet nut complete line ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX 4-M Company AH Designs49 AJ Products150 AMA Membership45 Ace Radio Control47 179 Aerodrome Models Ltd47 Aero-Fab178 Aerospace Composite Products179 Air Champ Models152 Airtronics2 American Jr Aircraft Co176 Applied Design18 Astro Flight4 Authorized RC Service12 Aviators Guide43 BC Products172 Beer Can Bombers160 Blackbird International79 Blue Ridge Machinery & Tools184 Bolar Heli Resesarch178 Bradley Products136 Dave Brown Products44 Bru Line Industries44 Byron Originals80-81 Ca Ra Products184 California Model Imports16 Campbell Tools Co178 Caarlson Engine Imports184 Johnny Casburn Mfg174 Century Systems83 99 168 Champion Model Products155 Cheveron183 Circus Hobbies100-101 Cleveland Model Supply138 Eric Clutton179 CompuServe154 Coverite22-23 Cox Hobbies85 DC Aviation177 DGA Designs42 D&R Aircraft Mfg4 Davey Systems Corp18 Davis Diesel Development20 Dodgson Designs150 Dougs Hobby Shop163-167 Al Doyle184 Dry Ridge Models160 Du-Bro Products Inc13 16 EHS Trading Ltd158 Expressive Image Studios176 FAI Model Supply157 FHS Supply Inc5 Fiberglass Master161 Flight Lab182 Flyline Models161 Foam Scale Models157 Fourmost Products40 Futaba Corp America21 GM Precision Products136 Gator RC Products171 Carl Goldberg Models117170 Golden Gate East150 Gorham Model Products7158 Helicopters Unlimited11 High Performance Models160 Harry Higley & Son176 Historic Aviation35 Hobby Barn137 Hobby Horn144 Hobby Lobby International161 Hobbypoxy Products184 Hobby Radio178 Hobby Woods 99 Ikon Northwest Co162 Indy RC Sales Inc140-142 International Modeler Show149 Jan Crystals18 Larry Jolly Model Products144 Jomar177 JTecss K&B Mfg159 K&S Engineering55 K W Enterprises184 Kirks Sportsworld15 Kookaburra Tech Pubs172 Kraft Midwest138 Kustom Kraftsmanship159 Kyosho88 Lake Enterprises156 Leisure Electronics145 Loctite33 Lone Star Models139 MACS Products177 MGA Enterprises148 Mafts Model Airplanes159 McDaniel RC Service44 Memories Keep179 Messers Qual Model Prod178 Micro Mark41 Midwest Products Co87 Model Box180 Model Rectifier CorpCoy 2 & 319 Sid Morgan Plans151 Mutchlers Hobbies146-147 NEPRO155 NW Model Expo153 Navillus Industries42 Northeast Aerodynamics172 Northeast Screen Graphics49 Nostalg-Air182 OS Engines187 Pacer Technology53 109 Pelican Enterprises180 Penn International Chem55 Penn Valley Hobby Center174 Pica Products152 Polks Hobby94-96 Pot 0 Gold Show10 Progress Mfg Co151 Pro-Tune Corp42 RC Buyers Guide181 RC Extras150 RN Models148 Red Max Fuel5 Repla-Tech International178 Robbe Modellsport16 102 SR Batteries179 Safety Plus136 Satellite City Scale Plans Photo Service179 Sermos RC Snap Connectors178 Shamrock Competition Imports155 Sheldons Hobby Shop20 Sig Mfg Co912 Sky-High Enterprise144 Bob Smith Industries40 49 Spirit Lake Hobbies20 Star Base Exchange158 Sunshine Hobbies107 Swanson Assoc160 Tatone Products Co40 Toledo RC Exposition53 Top Flite Models Inc110 Tower Hobbies175 Tru-Turn157 VK Model Aircraft Co151 VL Products34 Victor Engineering162 WE Technical Services8 WRAM Show173 WW Aeroplanes180 Wandit Mfg160 Williams Brothers34 Wilshire Model Center33 Windsor Propeller Co143 Wing Mfg Co10 World Class150 World EnginesCover 4 YSFutaba169 Yale Hobby Mfg Inc188 Zenith Aviation39 Zimpro Marketing .8 Nick Ziroli Models138 could match Bobs max would soon Wakefield Champ Seven-minute round As final show down arrived emotions running high Bob White again stood threshold realizing dream Always world-class Bob has come close championship status number times Anxiously preparing nearbyand filled apparent disbelief opportunitywas Rozycki recently placed third Eastern Bloc Championships coincidence Polish Ameri can timekeeper picked last round under circumstances FAI jury requested redraw 840 pm ready Stephan picked moment January 1988 185 FULL-SIZE PLANS No 575 Scorpion 60$1150 RC Fun-fly aerobatic plane 60 power spans 58 No 576 Serendipity$325 FF Indoor EZB record-holder spans l77/s No 577 HaIflite$225 CL Combat plane has foam wing spans 30 No193 No 239 No 262 No 310 No 314 No 326 No 332 No 386 No414 No 440 No 447 No 454 No 457 No 460 No 466 No 478 No 490 No 499 No 502 No 503 No 506 No 512 No 514 No 521 No 522 No 523 No 525 No 528 No 531 No 533 No 534 No 535 No 538 No 537 No 539 No 540 No 541 NO 542 No 544 No 545 No 546 No 547 No 546 No 549 No 550 No 551 No 552 No 553 No 554 No 555 No 556 No 557 No 555 No 559 No 560 No 561 No 562 No 553 No 564 No 565 No 566 No 557 No 56$ No 569 No 570 No 571 No 572 No 573 No 574 Stiletto Cl Stant medef McDonald winner 1970 1980 1952 FAI ydndd Champs $ 375 Blue Birde 60 Ken Willards faematinn plane 4-channel 10115 power $ 375 Creglameeter CL Crash-prant trainer twa sizesi V30 35140 pawer $ 125 1930 Fleet BIplane 60 Sport Scale far 35/40 4-channel Wlngapan 50 scale Twa aheeta S 625 Drake II RC Ken Vtlfiarda flying bent far 3-channel 15-pawer Fly fram land removable gear 8 375 Taylor Cub 60 Dan Sinus Schanlyard-Scale DOgs 2-3 channel Spans 50 in $ 350 Zephyr 60 Small 2-channel glider tar hand-launch nr tew thermal alope sawing * 200 Laeer 200 RC Sport Scale replica champinnuhip Aerabatic flier Uses 40 pnwer 4-5 channel Twa sheets $ 1075 Elengrlc Sparky 60 Electric fan flier far 05 motar 3-channel R scalild-ep 1935 rabber-pawer tenants$ 8 50 CavalIer 60 Old-lireer-lIke new design has huge wing far slam easy flighls Far 35 pwr 3 ch Two sheets$ 1725 1/2A Mlee Amerlce RC Old-Timer Texaca madel far D4Sglaw 2-channels$ 650 Sweet P40 FF Neat slick-sad-Susan Outdoar Rubber F-3D-class medel cantest-winner.. $ 200 Spectra 60 ElectrIc-power far 05-size mater uses 3 ditfereet wings tar sport enadag aerabahcs S 700 4-40 RC Shaulder-wing apart flier far 4-cycle 40-size engine 4 channels 6 650 Blue Hex II 60 Fan-fly spartater far 40-size engines spain 52 Lightweight strectam S 700 Buttercup RC Cute elSa spartater uses micra 2-ch 60 ar pulse-redder Spans 27 far 020035 power S 300 Weekender 60 Low-wing sport flier far 20-size 4-strake engine spans 47 $ 575 4-60 60 Dec Mathews great sport flier far 00-size fuar-atraker engine spans 70 Two sheets $ 1275 BIll WInters Vagabond FP Sparsater down-shad 02-powered nersien 1940s plane Spans 33 Kr$225 Buzzbat 60 Siege-soarer apsas 60 uses 2 60 channels $ 750 Playranete 60 Sport flier far 3 00 channels 15/25-she engines spaus 50 in$ xam 230 60 Giant Scale acrebatic plane spans 6 ft cues 055dm engine Two plan sheets $ 1098 Henry T 60 Sportster 2-3 channel RC spans 52 has adjustable wing flapo S 475 Comet Jr ClIpper Plue 35% 60 Old-limer spartater far engine 2-ch 60 apaus 48 hr 8 650 Sorta Pltte 60 Reminder-scale bipe far 45160 engines spans 43 Twa plan sheets 8 1050 Dawnwalker- FF Sopodight UnllmSed4duleihill rabber-pawered campefition plane apses 42 Kr S 4 00 HI-Tech 2002 60 Canard dusted-fan 45 engines spaus 39 Two sheets $ 1000 Swallow 60 Lightweight haldagger far 40-size faur-strela engines upaus 58 inS 9 25 Terrible Coupe FF Rubber-pawerad Coupe ditiver spans 48 cantast-winnnr S 475 Ceesasa C-37 60 Scheolyard Scale ef famous 30s plane fur 049110 power 2-ch apses 42 an S 500 1938 ChaHeeger 60 Teasco Dld-flmar spans 47 Ia far 048 engine 2-channel60S 550 Atrlx 60 AMA Claus D Sailplane spans 110 nses 4-channel 60 system. S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish 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BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU FORGET\OUR UNITS REMEMBER RC Syetem NICd Batteries chargers need packagel CyclerCharge$19995 00i Fits 48V Rn 96V Tx packsPlus $5 S&HGelled Cell Others available write call Regular Model$3995 ForPlus $2 S&H ld kit smallPlus $2 S&H electric boat battenesSpecify 6 12 24V Heavy Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 1 2V CaRa ProductsssEieetomsasonPO Box 221 6059875924Dealer squlnes tinned Canton SD 57013 HOBBYPOXY TRUE TW0PART EPOXY PAINTS 16 COLORS R ER EPOXY GLUES FOUR FORMULAS 5MIN 10 45-MIN FAST FILL GRAIN FILLER QUICK-PREP POLYESTER RESIN FREE COLOR CARD AND BROCHURE MOBBYPOXY DiVISION Petit Petit company 36 Pine Street Roclwaay NJ oae6 $100 BLUE tttDicatalog RJDOE MACHINERY&TOOL8 P0 Box 536-Y Hurricane WV 25526 304-562-3535 offer compiete selection iathes mills tools Aviation Modeier IMPORTED DIESELS AMAuroraDCEOMVVSMNSCEflYa PAWTapIIn Standard & RIC.OIO40 Aero ne VlntageSport & Contest Send 8100 Informatiom CARLSON ENGINE IMPORTS 614 East Marconi Phoenix AZ 85022 Send SSAE coining sheet nut complete line ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX 4-M Company AH Designs49 AJ Products150 AMA Membership45 Ace Radio Control47 179 Aerodrome Models Ltd47 Aero-Fab178 Aerospace Composite Products179 Air Champ Models152 Airtronics2 American Jr Aircraft Co176 Applied Design18 Astro Flight4 Authorized RC Service12 Aviators Guide43 BC Products172 Beer Can Bombers160 Blackbird International79 Blue Ridge Machinery & Tools184 Bolar Heli Resesarch178 Bradley Products136 Dave Brown Products44 Bru Line Industries44 Byron Originals80-81 Ca Ra Products184 California Model Imports16 Campbell Tools Co178 Caarlson Engine Imports184 Johnny Casburn Mfg174 Century Systems83 99 168 Champion Model Products155 Cheveron183 Circus Hobbies100-101 Cleveland Model Supply138 Eric Clutton179 CompuServe154 Coverite22-23 Cox Hobbies85 DC Aviation177 DGA Designs42 D&R Aircraft Mfg4 Davey Systems Corp18 Davis 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engines upaus 58 inS 9 25 Terrible Coupe FF Rubber-pawerad Coupe ditiver spans 48 cantast-winnnr S 475 Ceesasa C-37 60 Scheolyard Scale ef famous 30s plane fur 049110 power 2-ch apses 42 an S 500 1938 ChaHeeger 60 Teasco Dld-flmar spans 47 Ia far 048 engine 2-channel60S 550 Atrlx 60 AMA Claus D Sailplane spans 110 nses 4-channel 60 system. S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation
Edition: Model Aviation - 1988/01
Page Numbers: 89, 90, 91, 92, 93, 97, 98, 99, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186
NO OCR TEXT ole 5121neke binoculars sLupwal still fjll hq~ before start Eventhese effic nag area uf stray park nd start generally nimer un entry Cc stralgil sunny asic conditions p e over yt d hoped aft aced US tc practicing first take ions very fai heavy bands ed earlier ensive Jim Bi utive team Mink few mare tar U c ts d easily c to4 ement meant cor fast t 830 am rounds opec nechoslovaki ci off fir u it But place andc ii recorded utesnite ving idy dof 90 arns Brai 1014 2lidI g droppe mista Bradley itinued Re 1 V Tchop USSR 240 Hornisi Czechoslovakia 240 riiiany 300 240 2 IRA sin Results firn onu ri ien therm uDwind t IOU rising fielo late under go up nuple cl irov mg Vic n g Neil-rn DC find e quick uiule ig di con poss1ie ermaling Victor second Glider Oi fl1 tni use mtenai Peter elegar tyrofoan vith ext Kevlar cloti panels s Rohac j sandwichtechniques Champion WUINS popwinning DII Eup iw m gnu uu idafly with the early rnoi swept p wind directior corn sev war d re demonstra osistently similar us Tali during hnui faii ved Y tJ congra ie super early e trouble w fuse uly daira wen Sifleet reo lining th4 fed onto roum n worked oi max ching climb 830 Dale Mateer rou trio put togE round uds burnec the Fren wer Results SSR 300 &SR 50 360 E Germany 240 36 lie USSR 240 rig PR China 240 SA A Results 3780 3780 under 10 mu thermal ead perious iueauy activity Model devel progressed faster events no other models shorter sore opportunit g rigorl wnen buildis mas Koster I IIUW O compact 92 it latest re once aga ig construct mile rs ott Sob fin ism arci ROUN still b rntrato tlit mph s but still w S tile orga t gina ream 01 White r orid nuan has c niy Frond L the~ arlier th terests severely Round Two 143 sec Itzhi proved t ter equipment ith flight n Reiner tricks c era mp data fruui Bob Plaercli folding pn Id turned rn irum ruiSS USE Keviar Cia well ef Ii SA 240 and 240 Vugoelayli R China 24 nyl PR China 240 Tern, Results na Iu left no doubt could such equip ment used good effect flier complete mastery event Reiner would prepare model yet winding begin study twin chart recorders relayed temperature wind speed information unit upwind comparison conditions launch pole recognizing calm warm air building upwind Reiner could fully wound ready launch within 40 sec Yet invariably still another 30 40 sec make up mind about launch ing before thermal fully developed arrived launch pole Reiner hav ing great time launching lift fresh motor again looked unstoppable Since win Livno 1985 Reiner built new wings using very lightweight Keviar over solid Rohacell foama tech nique developed least FiB models Swiss team construction direct ly benefited flight performance significant increase torsional stiffness improved Espadas resistance wing flutter high speed after launch Once again Russian team Alexsand er Andrukov Yuri Golugonov Stefan chuk technically advanced models featuring highly complex de layed prop release variable pitch propeller systems developed Andrukov models also made much use carbon-fiber stiffening caps spars individual ribs Like others though obviously still struggling wing flutter problems launch Andrukov resorting mass balance weights outriggers front D-box leading edge model flying comparison performance pre vious World Champs frequent inability 1981-to-1983 Pirelli using sustain steep climb angles throughout propeller run indicated past its prime adoption delayed prop release hub either alone together vari able pitch propeller has become wide spread since its first appearance champs 1981 other Eastem Bloc countries doing some serious ma chine shop work front-end assemblies although typical see fliers always using delar prop function during rounds fear wing damage extra-hard throw required launch already windy conditions Chinese team full propeller systems again using rubber own manufacture also us ing several thermisters pole position conjunction dozen long silk streamers upwind high poles indi cate wind speed Although held wound motors long periods time often chose let propeller run launch climbs consistently some best field went well American team straight maxes until third Continued page 183 January 1988 99 props dont look very trick tough apparently efficient just super model also have good performance Tornado 5 x 3 props can slow model bit 6 x 3 prop fuel economy will improve Fuel Small /2A engines least bit forgiving dirty otherwise contami nated fuel Use fresh fuel filter least onceeither coming out can going bladder have great re sults 33 %-nitro fuel Cox Racing Fuel also gives good results Make sure what ever fuel choose has least 20% oil minimum 5% castor oil Flying have flying Control Line Combat over 25 years have also logged over 900 combat hours Forward Air Control pilot southeast Asia have found Rule No 1 Forward Air Control business Rule No 1 success CL Combat same run ground Other axioms CL Combat success ThERE ARE NO SECRETS LIQUID FINISHES MASTER MODELING DESIGNING SCRATCH BUILDING 1 Practice Practice alone practice flying buddies practice entering contest can practice un til flying becomes second nature 2 Keep flight ground equip ment simple have minor trouble equipment practice will nearly always have major trouble heat battle 3 Dont sacrifice reliability consisten cy minor performance gains par ticularly true engine involved Combat speed event Running ultra-high-nitro fuel high-compression head wild port timing gain couple mph may make plane crowd pleaser extra performance comes expense reliability consistency will win Combat matches 4 Know ground rules Read AMA rule book dont make mistakes ignorance rules Flying 1/ZA Combat successfully involves hard work disciplines preparation engines practice etc Halflite design TOMS TECHMOUES MONOKOTING FLYING AROUND OLD TIME U CONTROL HANDBOOK J ALL ABOUT ENGINES MORE COMING SiO95 EACH HARRY HIGLEY & SONS INC P 0 BOX 532 GLENWOOD ILL 60425 proven model help build Com bat success upon Tee Dee engines engine parts thin-walled fuel bladder tubing avail able Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Styro foam wing cores Halfilte other Nationals-winning designs available Core House 760 Waltonville Rd Hummelstown PA 17036 FFWC General/Cowley Continued page 89 does interest Free Flight continue flourish face generally wid ening scope model flying Much appeal can attributed simple purity beauty model released fly free responding changing weather conditions personal level infinite scope performance increase through aerodynamic experimentation structural refinements well-engineered design above ultimate level endeavor opportunity participate rewarding athletic event highest level sportsmanship unrestricted exchange friendship technical information between fellow com petitors around world ex plains enduring hold category competition FFWC Gliders/Cowley Continued page 91 uses full-span wing molds made stable mixture sand epoxy framed metal tubing Orels models ex ceptionally high standard such tech niques now being applied Free Flight models interesting speculate whether builder-of-the-model rule will day dropped has already happened RC classes traditional balsa D-box leading edge airframes continue norm competitors out extensive use reinforcement usually form carbon-fiber wing spar caps individual upper lower rib 176 Model Aviation TheNN. cFoldingBALSA WOOS wThg- A-i INTERCEPTOR Ready Fly $695 U-build Kit $495 Note Pleaseadd$3forP&Hforlat3modela. Add 10% price additional model Aw0~JA AIRCRAFT COMPANY PO Box65132 Portland OR 97268 caps latest trick used several East ern Bloc countries attributed Russians use thin tows carbon rovings closely spaced oriented 45 degrees bonded D-box sheeting provide increased torsional stiffness perhaps performing dual role turbula tors either internally externally During practice days Chinese North Koreans both flying ex tremely high-aspect-ratio models wingspans 100 Although such models prominent contest dur ing calm early-morning rounds illustrate completely different direction FlA Glider design could take con tests organized specifically during per iods early late day instead during peak midday thermal hours present Following overwhelming success last champs Livno Chinese seemed unbeatable three team members plus individual champion con tinuing max out Other teams chal lenging however Denmark Italy Czechoslovakia perfect scores day progressed Nahlovski dropped over minute fifth round end Czech teams hopes flight left Denmarks Per Grunnet missed flyoff spoiled team score New Zealands Rod Lewis also nasty shock model unlatched fell off line keeping him out flyoffs Four-minute round After full days competition 28 fliers still contention almost one-third entry Promptly 615 pm right start round almost before anyone else ready Belgiums Leo Reynders towed tip distinctive high-aspect-ratio solidfoam-core model immediately released later said felt air building waiting ground round open sure enough right Others began tow too late capitalize Leos flight Several minutes ticked dozen models spread out across field si lently towed warm breeze Suddenly flurry activity group models downwind catapulted up strong lift quickly climbing good height another well-marked patch lift ap peared upwind Jim Bradley able exploit Jim nicely positioned join already-launched models climbing quickly front him made no mistake about centering well pack little over five minutes round everyone flown al ready obvious majority looked safe 200 yards downwind direc tion start maize corn fields Dozens retrievers out armed radios keep touch teams clear race get models back time following rounds Five-minute round 655 pm pres sure back competitors make another big flight turned out Finlands Heikki Tahkapaa has reached almost flyoff can remem ber max last round27 still remained Already fliers spread out across field Czechoslo vakian Ivan Horejsi North Korean Li Chol dangerously close other raced downwind avoided line tangle virtue superb control experience Uwe Rusch third Livno East Germany also moved far downwind three soon able launch first patch good air marked Italian Roberto Cal Once again models directly upwind starting line gave away guaranteed max still waiting Within just few brief moments almost everyone launched whether simply going up off right pole position already started towing running back position real problem trying stay out trou PRODUCTS Complete Line Exhaust Systems Tuned Pipes led Tuned Pipes * Headers Venturi Mufflers * Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpass- W inship # Peifomance ble sheer panic moment Denmarks Peter Buchwald unlucky ones model got strung up spiderweb towlines dragged out sky badly damaged dozen fliers off monster thermal within just couple minutes Gliders mere specks sky incre dibly high evening flyoff Americas Jim Bradley Englands Bill Colledge among main group managed easy max Australias Martin Williams well centered fell short 14 sec Peter de Beer Holland out Chinas Yaodong Zhou Klaus Saltzer Austria unlatched 60 ft yet still managed over two minutes Peter Buchwald did max second attempt since back-up model never DTed remains damaged being hastily repaired Danes excel kind drama Six-minute round 735 pm air felt distinctly cooler despite huge thermals still present half January 1988 177 RADIO Radio trouble? Hobby Radio offers professional R/C repairs modifications make R/C equipment produced last 25 years Complete system service k battery pack servos vibration testing new frequency change etc Also R/Cer likes do-ityourself Hobby Radio Volume 142 page journal including diagrams charts detailed modifications written simple understandable text Send $1995 Hobby Radio 3001-A Kavanaugh Rd on NC 27893 legal size sase price list complete services YOUR R/C SPECIALIST hour earlier clear would shakeout round During first five minutes handful remaining 22 competitors chose circle-tow Czechoslo vakias Horejsi East Germanys Rusch Preuss Vittorio Brussolo Italy parked downwind others Everyone much cautious max stage could prove decisive Britains Bill Colledge chose go way downwind ownand suddenly launched After eight minutes round first fly couple circuits model held line height cer tainly brave move no else could have reached airplane turned out Bill round too early particular tactic air quickly faded perhaps accelerated crops flew over landed under two minutes Meanwhile Victor Tchop Russias remaining flier World Champion 1975 carefully positioned himself up wind middle area field recently plowed No sooner Bill committed himself launch far downwind Victor released way up wind immediately evident going great flight Another mass launch followed spectacular zooming climbs fast tows late day six minutes long time accurate positioning would prove vital impressive release Leo Reynders model stood out being highest right sweet spot thermal Jim Bradley unlucky find himself way out side action faced tricky crosswind chase get Tchops model Jim covered ground well could never quite catch up enough before decided launch scored disappointing 153 sec Suddenly reigning World Champion Li ang Yue ran back pole position pre pare 100-in-span high-aspect-ratio model refly After line tangle Liang already decided flight pro gress wasnt going good enough French timekeepers adamantly refused stop timing first flight over minute Liang pleaded admitted ly Chinese despite language bar rier intentions clearbut couldnt stop volunteers stepping forward time him Running out time fast Liang started tow have red Very signal mark end round instantly released What night mare Liang two models airborne two sets timekeepers legality either being no means clear As turned out both scores within few seconds other just under five minutes indeed tough round nine 22 fliers returning maxes Kai Sun runner-up Livno also dropped Bistacchi Cal out well high positions secured team prize Italians beat seemingly invincible Chinese Seven-minute round though next round didnt start until 820 pm Israels Kobe Itzhalovs model just ing returned downwind others still missing breeze just 2 3 mph refreshingly cool after heat day Only three fliers line Ital ian Vittorio Brussolo Tchop Horejsi chose balsa-sheeted model 85-1 hadnt flown since opening round three minutes already gone Manfred Preuss Glider returned ena bling him start towing joined Itzhakov Yugoslavias Sahinovic favorite location way upwind Stock Per h,medfte Shfpeeet New ZENOAM 6237 cu In 523995 New Qoedre 40 coi 13-beering epring etarteri$14995 Req Ooede 40 $12295 Brieghelle flywheel 95 Req Ocedre 40 Pow Awembly Only peinte $6495 OuADRA orZENOAH REPAIR$1000 lploe pertol Jim Messer ERcOUPEPLANS 5239$ SEMI-KIT $9995 Jim wetter TOMAHAWKPLANS $2395 SEMI-KIT $9995 Jim Meeter J-3 KITTENPLANS $2995 FULL-KIT $13995 WE ROSINHOOD 89 KIT$5995 leeve $391 WE R051N14000 99 KIT$19995 neon 5951 MALONEY 199 910495ZENOAK 11-38 95 FLOATS4$ 1/4ncelntorte 52195 complete kit $4795 15 WWI WHEELS 5P1K Spring Sterter 5 PLANS SUPER STEARMAN lt4lGodfreyl$2595 1/3 TAYLOSCRAFT 1/3 CUS Nelite$2995 VOLKSPLANE 1/3 chicken cherliel$2395 Seroot H-306 42 0 $1295 World S-15 lrg models$0495 Prope eli sleet ER TOP FLITS OYNATHRUST2$% OFF 115 Otedre FIJELTANKS160 $695320 $795 FI5ERGALSSARROWSHAFTS 5116 o32 long sfor$11 95 20000 Scow Addtzt0ecttete sesdtenkthOro MO JIM MESSERS QUALITY MODEL PRODUCTS Valley View Dr Box 43 Allegany NY 14706 plowed field Victor Tchop decided go alone model continued hold line height buoyant yet climbing captured everyones attention field no doubt air good soon others started towing towards Tchops model young Chi nese flier Yingjie Zhang couldnt bring model around wind forced tow Rather use back-up raced over retrieve another attempt Already others launched near Tchop still upwind pole positions cluding remaining Canadian Ladia Horak Reynders model again looked well centered suddenly knocked out sky Brussolo accelerated launch Leos Glider lost hundred feet Vittorio continued tow both models seemingly undamaged neither 1 $4LATNES PILLS MEIALSBOOKS PPECISION INSTRUMENTS COMPLETE CATALOG 12 00 0 0000 oP Onto aanu tees ce ~/100Onto Rood Op ogfI Oo c 4550/ Compact 55 3 322 0562 178 Model Aviation HOBBY --5 IL 919 291-8548 i I WE BUILD YOUR HELl TEST YOUR HELl REPAIR YOUR HELl 322 North 7th St 6i EVLehighton Pa 182353 WRITE OR CALL FOR INFORMATION 6950 COIlS w tmew teen mSew Andegoe eete foe Only certified checks money ordem occeptod Minimum Order 510/0 three packayw 4 Poonerpoles $3/0 per packaae 51/0 nh/pony hand/my CT residents add 75% tales tac Prices subject chanse notice DEALER INQUIRIES INVITED Par turther inlormalion aod dean p cessendOASpand BusinwsCardfo SERMOS RIC SNAP CONNECTORS C1ar ComefI Staten Box 16787 Stailford CT 9C6203322-6294 R/CSailpianes Fully BuiltTwo-Mater KIts Covered -*Ready radio $14800 UPS SASE info AER 0FAa 66 190$ tO MORAN MICH 45760 * SCALE DOCUMENTATION * URING AL H PEPLATECN 1988 J INTERNATIONAL AIRPLANE48500 MC KENZIE HWY CATALOG $250 VIDA OREGON 97488 able join Tchop Still tow downwind Horejsi waited thermal ing group Gliders approach before launching Zhang however back too late lift Brussolo finally towed crowd timekeepers Rather surprisingly Itzhakov Preuss launched few minutes remaining Reynders best model re turned him refly looks things flights already progress seemed certain maxthe event still wide open ind drama store Zhang launched unluckily model contin ued stall until down hundred feet Preuss tried hard several times release before eventually abandoning model fly away complete towline dashed back set up reserve Brussolo launched spare model spun down launch before fi nally leveling out too low threat minute go Preuss did man age launch reserve Glider model beginning climb slowly clearly chance Reynders waited ground checking damage last fly too ap peared very good air midairs tow-ins reflights no maxes yet recorded two ex cellent flights still progress round closed no least fliers themselves idea won However Victor Tchop World Champion 1975 anxiously awaiting confir mation Czech Ivan Horejsi come very close winning time 206 sec Victors tactics paid off score 237 sec cheer went up nounced once again Tchop Champ fellow Russians lifted him up tossed him air amid shouts excitement So despite weak start during dayand despite very strong challenge received particularly Chinese Russian team once again demon strated proficiency event have set standard almost two decades Victor being congratulated news came would yet another flyoffReynders Preuss tied third place identical scores 187 sec final round Taking cue new champion Belgian Leo Reynders im mediately headed same plowed patch Amazingly although hun dreds yards apart Reynders Manfred Preuss zoom-launched simultaneously, both now trying eight minutes However Manfreds model advan tage being vigorously flapped East German team Leo Belgiums sole representative event soon clear large crowd spectators Manfreds model was- maintaining height Leos coming down Nevertheless both men scored very high end Preuss finished third 251 sec over Reynders 218 sec E5 SEE YOUR DEALER FIRST n help you can order direct u us sending full price plus $200 handling U fee 116W 19th St POBox 1E6 Higginsville MO 64037 rcall816584-7121 U U U U U U U U U EUHENENE EUEEEEEEEEE January 1988 179 WORLDS 0100007 SCALD 00070 SEOVICO000 DM070 PACOS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING 0ASE ElsrSInD 005W Catalog S3OO SCALE PLANS PHOTO SEN VICE 3209 MSdSOD Goesoobono NC 27403 P5000 19192925239 No CoUpOn PAW DIESELS Englands Finest 049 35 R/C STD Send $100 fist Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 CARBON MAT SAMPLE 2 OR 5 OZ/SQ YD SEND $1 00 EACH TO AEROSPACE COMPOSITE PRODUCTS PO Box 16621 Ervine CA 92714 87 AMA NATS Highlights Helicopter Championships includes FLY OFF * Now video tape either VHS BETA * $2695 & h add $190 Mail Memories Keep Video Productloas 116 Grandview Fenton MO 63026 Dept Another noticeable trend year very prevalent use thin hardenedaluminum-foil-covered balsa-sheeted wings now material has become widely available through specialist suppliers Today 10 years after Verbitskis models Roskilde first unveiled con struction technique directly benefits airspeed altitude significantly im proving torsional stiffness wings majority serious contenders includ ing virtually competitor Eastern Bloc countries using FiC currently appears dominated Russian-style models have already won several European championships again reigning Euro Champ 1986 Eugene Verbitski together fel low Russian team members Moukhine Strukov truly set standard Since 1983 Chinese have flown metal models year three-member team exhibited new advancement mod els completely foil covered stead having built-up tips tails previously featured Flying exclu sively latest engines Henry Nelson US Chinese models among fastest field also incredibly consistentthanks no doubt delayed glide-trim timer function helps ensure perfect stallfree bunt transitions time North Koreans also new foilcovered models Surprisingly oaly ones still using flapped airfoils optimize both power glide phases flight climb rate did compare better fixed-wing models being flown certainly very competitive Interestingly Eugene Verbit ski brought latest model BE-48 also metal-winged flapper considered too new use event fourth round way almost put Verbitski out contest flew far west end line adjacent field sunflowers flight turned out lift quickly evaporated bring ing model down oaly 50 ft after minute half glided huge circle across field eventually DT 10 ft up three minutes US team doing great job fin ishing morning rounds perfect score However during lunch break Bob Sifleet make some trimming flights ended disaster folded wings model DTed end engine run did affect scorecard though after fifth round US team four still cleanthe others being East Germany Czechoslovakia Russia fifth round proved tough Thomas Koster misfor tune coughing engine run robbed climb altitude scored just over two minutesa situation RC link could least theory strictly rule book have helped avert brother Kim also bout misfortune going out similar time after flight bad air Austrian flier Reinhardt Truppe has made flyoffs numerous events over years barely made two minutes himself British team members clean up until round also met bad luck flying west end line near sunflower field seemed distinct pattern thermals ballooning up suddenly decaying Both Stafford Screen usually master consistency Ray Monks flights looked perfect until bottom dropped out lift scoring 115 sec 132 sec respectively Only Roger Baggott managed survive round full score Brits sixth round Dale Mateer engine running began launchjust thermal team picked him developed fierce dust devil Dale unaware rapidly approaching twister suddenly found model almost torn grasp launch nearby chairs equipment scat tered wind model blown over sky ending up barely 150 ft before thermaled out max very next final round iden tical situation quite incredibly reoccurred another little twister engulfed Dale cloud dust straw just about launch time Assistant Team Man ager Ken Phair able tell Dale shut down time Dales refly fine time running out last flight Bob Sifleet after missed first attempt blown plug time fitted new plug next thermal already building adjacent pole Austra lian Dave Thomas launched big lift Bob ran up engine shut down decided wait rather rush flight last 10 minutes round calm liftless Bob could man age 92 sec model landing close disappointing flight dramatic 180 Model Aviation CA MASK CA glue works wonders building nuodels right Unfortunately gives off enough fumes knock vulture off carcass modelers have suffered medical problems after inhaling CA fumes take chances special vapor respirator filters CA fumes soft face mask adlustable straps comfortably fits alt face sizes easy breathing valve allows prolonged use providing dependable filtering concentrations up 1000 PPM though rugged industrial mask light weight elimi nate fatigue Dont get gassed CA Get protected Order CA Mask today Just $1247 shipping cheaper hospital visit Money order Master Charge Visa include expiration date check allow 20 days clear Sorry no CODs Pelican Enterprises Inc 265 OXFORD LANE 8LOOMINGDALE ILLINOIS 60108 P S Send catalog modelers safety supplies FFWC Power/Cowley Continued page 93 ww THE JOURNAL OFTIlE JOURNAL THE AIRPIANE 1920 1940TilE EARLYAEROPLANE Leo Opdycke EditorKenn Rust Editor WWI AERO 19001919 SKYWAYS 19201940 two Journals contain information current projects historical research news museums airshows workshop notes technical drawings data informat ion paint color photographs aeroplanes engines parts sale scale modelfing material PLUS wants disposals news current publications kinds PLUS more. Sample copies $4 Published WORLD WAR 1 C ot&ie6 INC 15 Crescent Road louqhkecpsie NY 12601 USA 914 473-3679 ATTENTION AMA MEMBERS THE ALL NEW 11th EDITION Radio Control Buyes Guide IS HOT OFF THE PRESS Hobbyists Guide World Radio Control have visited AMA Museum let Radio Control Buyers Guide take See eight pages full color models photo graphed AMA Museum plus much THERES NO OTHER SOURCE LIKE IT Thousands photos descriptions up-to-date information Aircraft s os Systems nes ware s Finishing Materials ssories Videos Dealers local hobby shop does stock copies Guide please send request payment $1495 $1195 postage/handling RADIO CONTROL BUYERS GUIDE Clifton House ton VA 22024 may use VISA MasteCard chaige payment sending card number expiration date order consequencesit dropped US team equal first-place standing down 10th Swedens Lars Olofsson 1975 World Champion straight maxes up until last round luck changed lat est model flirted lift dipping below horizon reappearing another halfminute timekeeper watches stopped restarted model went OOS produced split time Olofsson outcome average score 176 sec making him 25th highest-placed competitor reach flyoffs Dale ending up 60 80 ft higher Bob Both engine runs safe cheers US supporters short-lived soon became clear air gone Dales model turned away glided wide downwind Bobs model stayed calmed overhead After minute exactly overhead again down 150 ft Bob landed just under three minutes Dales model glided well clocked off under four minutes low horizon although retrievers said landed max out sight timekeepers Meanwhile other Chinese flier Zhij ian Chen launched followed remaining fliers Britains Roger Bag gott maxed safely Chen however despite impressive climb managed just over three minutes Canada lost last man Frank Schlacta also dropped round following shallow climb Five-minute round last round easy 16 remaining three East Germans Russians still full scores team prize still unresolved Once again Shuliang Sun set pace launching first trigger ing another mass launch included Four-minute round 615 pm 24 fliers lined up first flyoff round after just couple minutes wait Shuliang Sun China fired up engine first crowd watched keenly launched perfect fast near-vertical pattern Way up high hard bunt put model glide motor shut off spectators applauded loudly immediately apparent Suns model good liftand along flight line engines burst song salvo screaming models took air Dale Mateer Bob Gutai flying halfa-dozen poles apart line seemed hes itant follow watched models gliding overhead full two minutes before engines running quite chance both launched simultane ously climbing perfect formation 6 jtO LXVT7W NP7IO 12 7PMT&E PE9- Ht January 1988 181 COMPARATIVE WIND TUNNEL STUDY OF MODEL AIRFOIL LIFT AND DRAG CHARACTERISTICS VARIETY OF AIRFOIL SYMMETRICAL FLAT BOTTOMED UNDER CAMBERED FLAPPED INCLUDES TYPES* * * * 25 PLOTS * LIFT COEFFICIENTS * DRAG COEFFICIENTS * LIFT TO DRAG RATIOS * AIRFOIL COORDINATES $1000 30 PAGES others Czerwinski Poland Oxag er Denmark Meissnest Germany Lustrati Italy Glissman East Germany Denkin Bulgaria Russians Moukhine Strukov North Koreas Kim time air much weaker really high-climbing models enough margin guarantee full score five minutes remaining Roger Baggott yet fly finally launched very flat pulled out quite low pa tience waiting lift well rewarded model thermaled out saved flight fact eight fliers managed make five minutes Claus Wach tler 16 sec short Russians maxed out latter appeared fa vorites team prize over East Ger Six-minute round Roger Baggotts model arrived back flight line just time start next round 735 pm some fliers put up delayed retrievals models retrieve Russians under particular pressure Eugene Verbitski disap pointed get model back until well round eight competitors waited silently first 10 minutes round again Sun first away confident style quickly followed Czerwinski Glissman Verbitski Rog er flew within half-a-minute others having made some trim adjustments before flight time power pattern much improved clearly disap pointed bad transition glide cost him much altitude down 171 sec Last fly Victor Strukov model clearly impressive Thrown concentration force could surely win Olympic javelin medal acceleration seemed instantaneous vertical half-axial roll climb bunt flawless flew early Verbitski maxed 348 sec Sun 12 sec short Czerwinski Glissman down under five minutes both Russias Alexandre Moukhine Manfred Thomas East Germany made six minutes too did Strukov finally surprisingly metal-winged Soviet models dominating event three still perfect scores team prize now definitely Seven-minute round Starting 820 pm would last round day Downwind retrievers still search ing through crops Manfreds last flight four fliers waited favorable signs calm air Moukhine first launch perfect flight real signs lift made exactly six minutes others waited few minutes remaining round Alexsander Andru kov helping Eugene Verbitski dicated conditions improving Eu gene good spirits always provoked some smiles gesturing o others should fly now As time close Verbitski happened fact first flyand perfect pattern Strukov followed soon after another awesome throw time climb went little flat bunted lower desirable altitude time Strukovs model its glide looked least high Verbitskis Finally best model still returned Thomas forced fly despite such formida ble opposition climb still looked very fast competitive Silence fell crowd minutes ticked away eyes transfixed three high-gliding models Verbitski clocked off over seven minutes Stru kov followed max well Thomas very close just 11 sec short seven minutes would yet another flyoff already too dark able get models back time organizers promptly announced event would re sume following morning before Wakefield event Eight-minute round 645 am next morning two Russians ready made single practice flight both down power cool damp air climbs noticeably flat off pattern Verbitski increased compres sion little boost power Stru kov chose adjust power trim round opened 730 am after short walt Verbitski Strukov decided fly together Verbitski away first still little off-patternturning downwind going flat model bunted down lost some height Eugene too happy although other standards model still very high Strukov followed immediately comparison climb again perfection transition lacked momentum model stalled several times before settling its glide Both models flew like Nordics although steady breeze taking perhaps half-a-mile away timers after near ly seven minutes Strukovs timekeepers lost model first Verbitskis model landing shortly afterwards already being congratulated new World Champion moment waited over 20 years savor meantime however excit ed messages Russian retrievers downwind cast some doubt result nearby spectators binoculars confirming modelStrukovs indeed still up rules however quite clear officials timed flights fairly limits visibility scorecard Verbitski won Nevertheless Eugene Verbitski satisfied Unquestionably master FlC modeling two decades responsible developing much hardware now standard sport World Champion ship victory nonetheless eluded him un til now Having waited long moment glory would satisfied controversial victory True sports man Eugene approached members FM jury asked refly final flyoff quick meeting amongst jury team manager two fliers decided What incred ible finale 820 pm both Russians ready refly time Strukov flew first quite vertical before again some stalls transitionbut flight looked high Verbitski quick follow much better climb over halfa-minute model stalled risked decisive flyoff crowd could watch awe drama unfolded first few minutes both models 182 Model Aviation p Id 3d [I] II U W1fl 1*3 FLIGHT LAB PO Box 1540 LOMPOC CA 93436 NORTH AMERICAN P-51D Mustang FRAMED 16 x 20 Silver MATTED Grey GLASS Non-Glare Acrylic 9 SIGNED DATED $40 Shipped 1st Class PP To NOSTALG-Air PO Box 8510 Michigan City Indiana 46360 S SSS clearly visible gliding close together drifted away over sunflower fields towards horizon weak early morning sun glinting flashing off metal-foil-covered wings Watching sus pense flights gained time distance spectators saw Strukovs modelvisible now through binoculars down first 7 mm 9 sec Verbitski still flying on maxing 8 mm 10 sec before finally DTed Now doubt erased second time day Eugene Verbitski proclaimed World Champion FFWC Wakefield/Cowley Continued page 99 round After Jim Quinns flight scraping max low ground eventually recorded exactly three minutes George Xenakis would have settled same flight looked poor during climb landed 19 sec short Later fifth round Jim launched just before group other fliers find himself up slightly ahead big develop ing thermaland went out 85 sec other models just behind him ther maled overhead Also fifth round Frances Louis Dupuis folded wings dur ing dive following prop stall rallied max refly last rounds still held few surprises Chinas Whenyi Zhangs model loop ing ground after some kind sys tem failure remainder team maxed out reflight though flawless final flight proved too big hurdle Canadas last remaining entrant Dave Andrews scored 93 sec Twotime European Champion Alexsander An drukov once again suffered disappoint ment missed place flyoffs bad last round 134 sec Four-minute round almost sur prise find time difficult round three-day Championships arrived 16 competitors survived seven rounds scores intact impressively three Chinese team maxed out demon strating once again mastery event course securing Wakefield team prize competitors started winding soon flyoff round opened 15 minutes launch could afford miss well-marked thermal stage day Bob White waited minute two before starting wind misfortune breaking strands motor Mean two Chinese Zhiming Li Jifa Lu first fly both choosing same moment launch adjacent poles climbing together strongly formation third Chinese Whenyi Zhang Swe dens Lenardt Hansson Frenchman Louis Dupuis among fol lowed soon after bubble warm air dissipating already first two Chinese models gliding completely separate directions clearly some would manage four minutes Five minutes round Bob White ready wind again nearby reigning champion Reiner Hofsass also started wind ing uncanny understanding air shifts definitely encou raging sign Reiners side fellow countryman double-champion Lothar Doring studying twin chart recorders discussing incoming information together two made formidable intimidating combination talent sev eral minutes fliers waited motors wound signs lift now Chi nese team three maxes scoreboard nearly 10 minutes gone rising cloud cattail fluffies signaled calming IJoin % oonj%hw IMAA Membership Information ---Contact Robert Blaney ao Secretary IMAA 14 Parkview Road Long Valley NJ LISA07853 January 19S8 183 dont like brag but. 4 have oniy paint goes styrofoam mylar fabric wood metal fiberglass plastic offer sizes accurate computer matched colors high pigment content high gloss finish 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BUT WE DO. putting large paint chip can PERFECT PAINT S655SSO PO Box 2480 usky Ohio 44870 Ph 419-797-2208 wound fast could shadowed patch air breeze picked up Bob White away another stunning climb model leaping out hand like greyhound set free chase Australias Peter Fauser chose same air Reiner waited full half-minute before joining Ivan Taylor Britains man reach flyoffs still flown four minutes remaining last launched along Russias flier get far Yuri Golugonov Ivans climb looked quite weak after holding wound motor long once glide distinctive all-sheet design started thermal well max assured Five-minute round Only four dropped round including North Koreas Yong Bom Chang ending ENGINE SALE DYNAJETS $19900 Catalog $500 AL DOlLS LO15 Ban Jacinto # 40 C Soaston Texas 77004 713 4#0h744 challenge event once seemed unbeatable Ivan Taylor needed make some hasty repairs after model retrieved tail boom broken two chose continue fly ing same model Soon after round opened 720 Ivan wound ready go again launching Golugo nov young Polish flier Stephan Rozycki air marked Chinese time would no happy ending Ivan Due no doubt misaligned tail boom recent repair model started looping nearly hit ground glide too way off-trim ag gravated propeller blades flapping open hammerhead although good lift model continued stall Presumably reflection Ivan will long regret having used another model such crucial flight Meanwhile Reiner Hofsass having kinds trouble very moment decisive flyoffs winding motor trusty metal-geared winder broken Lothar rushed off fetch winder Reiner later said realized too conservative winding rubber unfamiliar equipmentin part through fear hed broken magic spell Lothar enjoyed dominat ing Wakefield event since 1981 en chantment did seem gone moment launch Reiners climb looked weak although familiar thinwinged Espada design seemed glide forever model landed half-a-minute short less five minutes left US team again working hard determinate ly marking grabbing air fluffies bubbles tension broken again Bobs classic Twin Fin its way rocketing skywards applause shouts supporters Go airplane go another monster flight Bobs airplane simply cruising across field perhaps 800 ft DTing almost six minutes caught Randy Weiler just under eight retrievers psyched-up didnt want Bobs precious model touch ground Six-minute round Now eight fliers leftAustralian Pete Fausers strong challenge ended Kucharski Poland made little over four minutes 800pm three Chi nese still running promising clean sweep time Bob White quick off mark launching early together Rozycki Poland looking like very auspicious flight Bobs Wake field particular riding thermal well losing some height after first couple minutes bumping starting climb again Yuri Gougonov winding hard until blew motor Helper Alexsander Andru kov quick get him set up fresh rubber again winding furiously packing turns Chinese seemingly changed tactics fliers going cautiously time now After seven minutes Zhiming Lee launched strong climb Gol ugonov wound time chase after him fill-in breeze picked up Yuris climb poor comparison indicating Russians simply didnt have good rubber left crowd nearly thousand competi tors supporters locals assembled witness excitement closing rounds Bob White turned round viewed crowd see binoculars US contingent still firmly transfixed flightconfirmation model now mere speck horizon still riding high big cheer White maxed too Stephan Rozycki Chinese threat over yet model still airborne Lifa Ju having changed model vertical tip fins making another impressive climb 33-sec prop run after long hold ground Two minutes later Whenyi Zhang also made great climb high evening sky could hear buzz excitement growing scores other flights came results Golugo nov 188 sec Alipiev Bulgaria 230 sec three ChineseZhiming 232 sec Lu 277 sec Zhang 238 secwere out 315 sec Yugoslav ias Jusutbsiac secured close third place Polands Stephan Rozycki also flown beginning round 184 Model Aviation WHEN YOU 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60 power spans 58 No 576 Serendipity$325 FF Indoor EZB record-holder spans l77/s No 577 HaIflite$225 CL Combat plane has foam wing spans 30 No193 No 239 No 262 No 310 No 314 No 326 No 332 No 386 No414 No 440 No 447 No 454 No 457 No 460 No 466 No 478 No 490 No 499 No 502 No 503 No 506 No 512 No 514 No 521 No 522 No 523 No 525 No 528 No 531 No 533 No 534 No 535 No 538 No 537 No 539 No 540 No 541 NO 542 No 544 No 545 No 546 No 547 No 546 No 549 No 550 No 551 No 552 No 553 No 554 No 555 No 556 No 557 No 555 No 559 No 560 No 561 No 562 No 553 No 564 No 565 No 566 No 557 No 56$ No 569 No 570 No 571 No 572 No 573 No 574 Stiletto Cl Stant medef McDonald winner 1970 1980 1952 FAI ydndd Champs $ 375 Blue Birde 60 Ken Willards faematinn plane 4-channel 10115 power $ 375 Creglameeter CL Crash-prant trainer twa sizesi V30 35140 pawer $ 125 1930 Fleet BIplane 60 Sport Scale far 35/40 4-channel Wlngapan 50 scale Twa aheeta S 625 Drake II RC Ken Vtlfiarda flying bent far 3-channel 15-pawer Fly fram 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Spans 27 far 020035 power S 300 Weekender 60 Low-wing sport flier far 20-size 4-strake engine spans 47 $ 575 4-60 60 Dec Mathews great sport flier far 00-size fuar-atraker engine spans 70 Two sheets $ 1275 BIll WInters Vagabond FP Sparsater down-shad 02-powered nersien 1940s plane Spans 33 Kr$225 Buzzbat 60 Siege-soarer apsas 60 uses 2 60 channels $ 750 Playranete 60 Sport flier far 3 00 channels 15/25-she engines spaus 50 in$ xam 230 60 Giant Scale acrebatic plane spans 6 ft cues 055dm engine Two plan sheets $ 1098 Henry T 60 Sportster 2-3 channel RC spans 52 has adjustable wing flapo S 475 Comet Jr ClIpper Plue 35% 60 Old-limer spartater far engine 2-ch 60 apaus 48 hr 8 650 Sorta Pltte 60 Reminder-scale bipe far 45160 engines spans 43 Twa plan sheets 8 1050 Dawnwalker- FF Sopodight UnllmSed4duleihill rabber-pawered campefition plane apses 42 Kr S 4 00 HI-Tech 2002 60 Canard dusted-fan 45 engines spaus 39 Two sheets $ 1000 Swallow 60 Lightweight haldagger far 40-size faur-strela 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S 7 25 Cyreno Ii FF P-3D Rubber hying wing pusher spans 28 Fram Sareaby WainfanS 3 25 Ceeena 206 Caravan CL Spart Scsle far 02 electric gamer spans 37 inS 300 SImIlar Slow-MotIon 15 60 Tsilleas flying wing tar 15 engines spans 60 sam 3ch 60S 3SO Sparrowhawlc 60 Sportster spans 40 has fispa trI-gear Far 15 engines 5-ch$ 675 Parakeet 60 Spart biplane far 15125 engines 3-channel 60 equipment spans 42 in$ 675 tiles Grand Raplde FF Jumba Rubber Scale menaplanli spans 37 in8 475 Heron 60 511 Winters apart Elecfric gesred 075 mater 3 00 ch spans 65 in8 575 Tubeetake OMT FF Mulnihill Rubber cantest plase spans 52 in8 575 MIg Sweeper CL Windy Urtaewslds giant 60-puwered Slanter spans 7514 Two plan sheetsS 1375 MIdget Mustang 60 Sport Scale far 40148 faur-streke engine spans 54 In$ 800 Foldeer Triplane CL Spars Scale thW thmewinger spans 12 isS 225 Cricket 60 Spart scslellhe far 20-abe twa- ar faur-strela engine spans 48 inS 675 Eaglet il/Screamln Eaglet Ii 60 Eafre wing ather parts convert Dsldbnrg Eaglet lit biplane5 250 SkInny Minnie FF lndaar ROD Sfick rabber-pawer plane spans 16 in$ 1 75 BC Alrtoiler FF Replica 1946 deBat Gas plane uses COn pawer spans 22 in5 200 PT17 Steerman CL Pratle Scale biplane spans 20 in$ 225 Super Doubler Ii 60 Sport Aarehatict4ylaa far 40/48 four-stroke engine spans 57 inS 57S Double Duty 60 Basic/advanced trainer tar 10115 engInes spans either 67 ar 59 Two plan sbeefs$ 1075 Avro Lancaaaer FF Rubber Scale has 4 motors spans 51 Fabulsual$ 650 Wildoet CL Spart prelle far 35 engines spans 44 Foam wing. S 500 Sugar Pup 60 Spartuter fur 10125 engIne Fasm wing spans 48 $ 550 Low Voltage 00 Electric-power sportster far 035 motor spans 44 In$ 475 FIerce Arnow 56 CL Data-wing Stunter far 45 power spans 60 has 1200 sq af area Two sheets $ 1275 WIld 60 Tri-mofar sportster spans 63 Ia uses 25 engmnna Two plan sheets$ 900 XB-35 CL Reminder-scale flying wieg hember two engines spain 47 $ 575 lo 60 AMA Claus 5 2-Meter Sailpiene has 78-in-span foam wing5 725 ThunderbIrd 60 CL Sg campoititos St aster Tam Olson far 45181 engines spans 61 KrS 800 Sea Loon 00 Pad-and-bonm seaplane 15 power spans 40 inS 675 ExCela 520 FF Compettien plane spans 65 uses 325/34cc power carbon-fiber caintractienS 675 Junkera Ju 863S Would-Se Scale PAW li-era fighter spans 47 uses twin engines$ 375 AvrO 560 PP Mini-electric Scale 23 BriSob utrafight spans 3D in5 200 Electmetreak 60 Electric serabatic plane spana 44 uses 05 motorS 550 Busy Bee FF Pee Wee-3D plane 02 power spans 30 has dither sheet-balsa ur belt-up surfacesS 4 00 Voyager CL Sorts-Scale A-powemd version af areand-the-worid plane spans 48 inS 2 25 16260 00 Sport Scale Aerobalic plane 4-streke 00165 power spans 66 iv$ 11 00 PInk Lady P40 CL Sit Wisniewalds Farmuls 40 Speedster 40 power spain 2714 hrS 4 00 Square FF Compalitien plane fsr Teleco COs power spano 22 IaS 2 00 0 en 50 5 Cl N ms 0 0 0 Cl 2 o ininminmemememmmomeinmOin@OmOinO rcle numbers plans wish orderj sO 239262310314326332386 0 414440447454457460465478 01 499 502 503 506 512 514 521 8522523525528531533 5375395405415425440 ZZ546547548549550551552553 562 563 564 565 566 567 568 569 0571572573574575576577 sOm@ eA price includes first claaa postage US delivery Air Mail over 3115 milee W ers outside US please add $250 Air Mail $125 surface mail plan ecbeckermoiieyerderpaableiiiUSfuadataMOdmIAviation cIeAMA 1810 SamuelMerseOr, ReateaVA22D90 Please S a8uw 3 ta 6 meeka fur delivery se print carefullyEnclosed $5 o0 STREET CITY STATE ___________ ZIP _____________ Bob keeping eye competitor too wound deliberate concentration Bob felt comfortable let Stephan make first move hard say nervous stagethe competitors spectators Certainly crowd nearly bursting anticipation perfect end ing championships Probably fond memory Bobs late wife con stant flying companion Toni supporters minds climactic moment People seemed sense other flight Bob ever made next going special lady always side Rozycki ready opened prop blades hand launched As burst power took over model climbed steeply swung hard zoomed round tight right turn before re suming climb Bob saw time right classic red-and-white model absolutely leapt out hand stood tail raced upwards past Stephans model Immediately appar ent contest overBob White would 1987 Champion Yet spectators quiet watched relished beauty perfect flight eyes turned skywards seemed running watches recorded passage time modeler gathered personal reflections incred ible championships few quiet moments present past seemed converge silent tribute Bob Toni Im sure present hearts friends witnessed Bobs flight overStephan Rozycki landed just under three minutes Bobs model still high landing nearly five long time coming now Bob White unmistakably new World Champion Wakefield Bob soon en gulfed crowd well-wishers Emile Fillon being among past champi ons present shake new winners handa gesture spanned half-a-century since Emiles own victory 1937 During years art Wakefield flying has seen changes both rules models has surely lost its thrill Fend Farewell Looking back few brief days France re cemented old friendships gan new ones 1987 Champs will long remembered finest events Run competitors competitors event model efficiency ganization single official protest lodged throughout events French organizers congratulated event blessed exceptional weather made enjoyable uni versal popularity eventual victors 1989 venue already set Cor doba Argentina world Free Flight salutes its new Champions Victor Tchop Bob White Eugene Verbitski 186 Model Aviation