Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv
Edition: Model Aviation - 1977/11
Page Numbers: 46, 47, 48, 49, 50, 51, 52, 53, 98, 99, 100, 101, 103
Fliers nations competed Roskilde Denmark July 6 12 determine individual team champions Nordic Wakefield Power Text photos W Kaynes LAST DECEMBER appeared might Free Flight World Championships 1977 moreover events might held three years Danes came rescue well under year managed put superbly organized Champs Roskilde historic town about 30 miles west Copenhagen flying site general aviation airfield continued open traffic between hours 9 am 4 pm Two trimming sites available during preceding week limited value since both very small windy US team flown Co penhagen early enough use practice sites much possible John Lenderman team manager went Denmark fore well prepared time teams arrival full show hit road July 6 school used accommodation soon scene renewals inter national friendships Most school rooms converted dormitor ies installing rather basic double bunk beds rooms being allotted competitors supporters na tionality Thus walking round cor ridors could find rooms own distinctive national atmosphere ranging some communist countries strong team manager control happy group families including young children formed Japanese team evening saw first practice ses sion actual flying site after taking first scheduled meal nearby mili tary cafeteria Feeding arrangements adequate particularly taste potatoes enjoyed eating other two daily meals cardboard boxes fair flying conditions eve ning attractions meet soon apparent phonomenal consist ent climb North Korean Wakefields superbly controlled towing Russian Nordic fliers quality top echelon power fliersnotably fleet advanced technology Russian models looked like being another Championship dominated Eastern bloc countries countries seemed quietly con tent stage Local favorite Thomas Koster showing slightly different power pattern trim flights object interna tional recovery form Dave Roun saville 46 Model Aviation wakefield FiB WAKEFIELD 1 K D 51k 2 S Samokish 3 P C Son Team North Korea After staying field until late evening short night rest before reassembled morning practice session Roskilde fore contest started Conditions very similar fact hard realize just long confused flying period slightest thermal activity very early morning seemed promise Champs decided still-air performance early rounds impression reinforced Thursday evening last trimming session being held superb calm weather everyone exercising extreme performance ships tweaking up limit optimum performance still air During day model processing underway expectation good weather fluenced contestants choice models include least suited still-air among three allowed team managers first briefing meeting bit chaotic overshadowed un clear instructions about motorized re trieving Initially contest director forbidden John Lenderman protest ed organizers gave compromise ruling team could station automobile 500 yards downwind use collecting base means returning November1977 47 No Korea USSR No Korea 1253 1245 1240 Victorious Wakefield team North Korea Ito R Son 3rd Sik win ner model Sol 15th Selection North Korean teams saw members practice flying day month before trip Bob Piserchio United States winds last digitally-displayed turn Wakefield rain wind suffered swing collapse Typical Austrian Wakefield model its builder Zachhalmel com patriot Hans Martin evidently has crossed over radio control 1975 Wakefield champion Paik Chang Son North Korea puts 380 turns through low ratio 2-1/4 winder Hero seen disconnecting prop guard disk Samokish Aussia wound through prop Note forward mounting multi-function timer mod ified camera mechanism mounted blister Outstanding engineering models John anticipated difficulties area rented motor bike extend available options con trast problems Plovdiv 1975 timekeeprs instructed time repeat flights whenever claimed argue validity reasons after wards defined chain command leading chief timekeeper CD International jury Another contrast Bulgarian version FF Champs opening ceremony Whereas laid showpiece function large displays central stadium ceremony Denmark predominately affair modelers Held airfield en tailed local band marching out short address local mayor derly raising national flags front assembled teams band marched off fliers free pre pare next trimming period program showed 31 countries attending unstated reasons Cuban team did materializemade puzzling some flying Pierre Tre bod open international France fol 48 Model Aviation simple tailpiane mounting T-tail Wakefield used Poc zobut Poland Note tab pylon/fin beneath stabilizer Special motive power Everything North Koreans did got attention weighing motor 3mm 1977 Filati rubber American team members Back row L RCharlie Martin Willard Smitz Bob Pischerio Walt Ohio Chuck Markos Front Row L RAI Bissonnette Tom McLaughlan Bob Sifleet Jim Walters John Lenderman team manager photo Mike Fantham Offset towhook cut-away trailing edge significant features Vinco Sabbadinis glider Italy FlA NORDIC 1 K Abadjiev 2 A Lepp 3 W Kraus Team North Korea November1977 49 States team manager junn enaerman seems worried wait Ghio might forget attach wings Wakefield day started rousing out bed contestants 2 am UT E9~I smiiea Tor mis picture xaen wniie ne stiii nsa ot moaeis intact provided some amusement model buzzed line dive scant inches assembled fleet Russian models nordic Bulgaria USSR Austria 1257 1244 1234 Norwegian accent Scandinavian Wakefield shown Ole Tar gersen High aspect ratio wing long fuselage small tail surfaces winning trio glider Ito R Lepp Russia 2nd Abadjiev Bulgaria 1st Kraus Austria 3rd entire Russian team failed obtain max last round North Koreans took team prize Andres Lepp Russia setting auxiliary timer controis ruader straight zoom launch glider Masters towing Rus sians did need watch models tow hunted lift lowing week Wakefield The contest started early Friday Wakefield flown mean early public address school came air message two oclock morning break fast now being served buses airfield will leave quarter three minute later third day become really well known sen tence either its waking up competitors much needed sleep telling social element time break up party leave bar stumbled outside wondered really awake world found cold wet windy total contrast state just five hours earlier caused much head scratching competi tors become used idea flying calm-air ships scheduled time 350 timekeepers poles containers processed rubber motors green flare went up signify start round 1 moderate wind about 12 mph light rain understandable reluctance fly immediately became clear would no sudden change weather few brave started fly early flights did nothing encour age still waiting Walt Ghio opened US teams efforts what appeared best flights until just 13 seconds short three minutes quite difficult see dark mist low level through binoculars used timers Bob Piserchio next fly suf fered disaster wings folded launched broken airframe dived timekeepers pole two positions away us impact changed damage White-type model simple wing break whole lot compound fractures later re flight yielded less two minutes de spite climb full promise Willard 50 Model Aviation Above Intricate geometry shield around sensor North Korean thermal detector stood about 11 feet above ground Below The Korean secret weapon attracts attention Beyond Canadian equivalent Bulgarian Nordic winner Kostadin Abadjiev easy use adjusters rudder better towers managed get 10 15 feet above line height models seen have settled glide FiC POWER 1 T Koster 2 A Meczner 3 E Verbitsky Team Italy Denmark Hungary USSR 240300340 240300301 240300276 complete results see Competition News section Jim Walters US assembling Nordic evening flights reported felt nothing line during first two last two rounds last flight jinxed line tangle Smitz did little better equally unhelpful air Attention turned North Koreans see could impressive appeared fine weather work-outs Sure enough did Kim Dong Sik returning max 25 sec onds glide time spare launched lull wind also strongly guided thermistor five other mod els went up same air just after launched landed well before did North Korean team moved straight lead nine seconds short triple max first round time dropped defending champion Paik Chang Son Canadians coun tries wait late possible before fly ingin hopes improvement did materializeand Jack Mc Gillvray blew some motors left no time pick air launch moments before red flare surprised find round 1 produced 12 maxes total 80 contestants appeared cer tain few would survive difficult weather thus would very large fly-off short break before round 2 rain stopped ever-brightening light day look ed much better breeze increased lift still elusive Walt first away again help hand-held bubble machines Bob White thermistor climb looked impressive two-stage VIT system perfectly choreographing change left turn initial burst standard right turn during cruise didnt impress thermal god November1977 51 power No Koster Denmark did win Power umbrella mounted ship helpers behind him waving signal retrieval crew Above Three identical cowled fuselages belonging Sharin Russia Note timer release plate under trailing edge joiner two-piece wings Right Sharin launching number model trim flights made practice day thrown back earth after 106 seconds weather felt normal ground apparent lulls wind would have associated thermals flying usual midday times did necessarily signify anything Danish early morning Thermal de tection having mixed success few teams bubble machines some relied Mylar streamers others worked thermistors fixed devices sup posed erected 25 metres upwind launch poles some strayed lit tle nearer poles Pete Williams British team actually model ensnared some Mylar just after launch interesting compare Cana dians North Koreans flying adjacent poles both using tem perature measuring aids scores showed great disparity either air picked models maybe biorythms just same class Perhaps unfair Cana dians Any team shows up poorly compared little people north 38th parallel Round 2 Piserchio come within 7 seconds max until round 4 Smitz both boosted team spirits showing maxes could indeed scored wind strong parts team selection finals thermal pick ing conditions quite alien Other nations trouble launching breeze mainly flying calm wea ther type models working well evening before Well-known Swiss free fighter Dieter Siebenmann scored disastrous 36 sec onds first flight high aspect ratio model team mate Hans Rei fler suffered two flights minute Hans earlier showing off small tailplane model started life tail area just 25 sq power stability inadequate So increased about 30% bet could have used morning Swedish Wakes similarly follow na tional trend high aspect ratio models long moment arms small tails Jan Zetterdahl machines pretty well made usual notable pylon tached aluminum tube fuselage adjustable screw clamp triple fin layout very small central fin carry ing autorudder used large de flections direction However medel badly launched attempted loop impacted behind ganizers vans party Swedes set off pursuit emerged behind van carrying few pieces Egyptian Hisham Mehrez provided some amusement almost incident Wake buzzed line chose dive ground just inches assembled fleet Russian models gave up after managing total time 69 seconds four flights Perfect scores soon reduced just Shibachi Masabumi Japan failed round 3 both Werner Nimtsch West Germany Arcangel Armesto Argen tina dropped out round 4 lead held Sergey Samokish two young unknowns joined Sil berg make up Russian team model outstanding engineering de tail timer modified camera mechanism mounted blister top fuselage just behind prop VIT auto-rudder DT lines carried low duct top gold anodized motor tube rear pylon joined lines rear fuselage tiny connectors required tweezers hook up tissue-covered wing Benedek 6356 section quite glider type airfoil use Wake certainly climbed well gliding fifth round closed mornings flying Willard Smitz maxed again thus moved up 16th place despite hav ing dropped two minutes total spread scores indicates difficulties Sergey Samokish lost 29 sec onds put him down third place behind two North Koreans coun try clear 100-second lead team scores although made full score morning rounds fact Italians Czechs teams have managed triple max placed second fifth respec tively ahead USA sixth Lunch served cafeteria 930 am competitors crept away lick wounds catch some welcome sleep Samokish managed add flight time during inter lude After much discussion timekeepers complaint Russian manager times muddled within team upheld maneu ver took Samokish equal second place moved down teammate re distributed 14 seconds Other happening during break fall heavy rain Roskilde airfield somewhat different afternoon warmer fresher small crowd spectators Aviation inter est arrived form proto type de Havilland Dash 7 STOL transport sales demonstration Europe form support Canadian team computer-designed Nordic section section being used Mike McMahon reflex trailing edge looked improbable aerodynamically high-lift devices Dash 7 quick glance test flights showed lift present normal quanti ties indeed confirmed doubling rate maxing com pared morning Onlookers busily trying work out North Koreans picking lift manager sat ground beside 10ft mast carrying detector looked 52 Model Aviation Al Vela ot Mexico b68Uti1UIi proportionso snip aier maao hole tarmac lots pieces wood Al well known West Coast modelers has often competed Tom caugnian 01 U rower team checks tuning 110551 engine fly-off engine suffered internal problems after 5 seconds poor transition gadgets worked 7-second routine two meters linked understood both showed temperature different sensitivity scales some low-key communication within group before deciding flier should start winding wound usually little delay before got instruction launch meter man Often little attention paid such signs lulls wind must have deter mined instrument defending champion showed rare fallibility round 6 launched what seemed inflow after ther mal made flight 2 minutes 55 sec onds Ghio flying same air climbed high went max Piser chio stall build up about minute flight cost him least half minute 1973 Champ Joachim Loffier made diabolical cross-wind launch model managed recover maxed contrast five flights early session including single three-minute flight no fly-off prospect evening continued interest whether leaders would continue max did North Koreans thus wiped field individual first third placings plus win team winning Wakefield similar used previous champion using model agreed details pre sented Bob Meuser January April 1977 issues Model viation Some Kim Dong Siks airplanes have motor tubes aluminum some balsa prop carved digenous Korean hardwood has nar row chord blades thin section spare quite differing group blades box along compon ents six models packed compact box no larger 30 12 FAT medals presented top three short prize-giving ros trum airfield winners gave press conference aided interpreter Danish em bassy disappointed volved representatives just few model magazines na tional media learned some fasci nating background North Korean modelers rubber used said have obtained through official channels Italy year looked much like 1977 Filati/Pirelli Upon being asked free choice launch Kim Dong Sik replied took account factors state model wind thermal conditions also opinion team manager coach found weather difficult windier used team selected dur ing workout top five con tenders flew everyday month De spite amount time spent just flying said professional explained worked factory making scales interview concluded little piece propaganda glory peasants farm workers president Kim Ii Sung non-sequitur reply ques tion whether going Pierre Trebod Meanwhile Japanese keen emphasize Masabumi taken highest place privatelyContinued page 98 November1977 53 Charlie Martin United States has fired up flag ready alert retrieval crew sixth round bad transition Al Bissonnette displays bubble machine used guide US teams three days competition Being able pick opti mum air conditions essential winning top competition Starting up triple-finned model Frank Schlachta Canada decision time runs sound rather watching props compli cated much ground runningFrank questionable over-run Adjusting propeller brake Stromboli Michel Iribarne France Notice angled mounting engine maling models again circle-towing down wind main pack fifth Bob tangled towlines another glider re-started found own lift again maxed other flier max flights Segle Senior Washing ton Isaacson thinks real comer fly-off Bob launched first circled four five times dropped model off line good lift again maxed Segle apparently didnt see Bob lift launched air less helpful contest over Tuesday noon Bill Vanderbeek put up four max flights Xenakis designed Tadpole mediocre fifth flight would put him first place A-l Towline Glider event lost model Fortunately brought along second model unfortunately never performed espe cially well test flights diverged badly towed going off right flight left next self-ap pointed four-man ad-hoc advisory com mittee agreed towhook should moved forward Y4-inch helped Bills fifth official flight lasted medi ocre 94 seconds just second too medi ocre win over Paul Stober least five Tadpoles flown A- 1 remarkable design has recently published form small three-views highly developed model has outstanding track record N ats/M euser continued page 39 used retrieve model fol lowing day used twice retrieve Pennyplane totally undamaged others used successfully also sur prising such simple effective de vice isnt used often Hot Rock/Evans continued page 44 21 Install strip aileron links ailerons cut out center-section blocks allow free movement links 22 Layout ood landing gear blocks rout out wing 5-minute epoxy gear blocks place 23 Cover wings ailerons 24 Cut out bend dural gear use screws attach gear plywood blocks 25 Install hinges make aileron torque rods fit aileron servo arms 26 Carve sand fuselage shape 27 The tail surfaces cut 3/16 sheet balsa Cut sand shape 28 Apply choice covering original covered red Solarfilm 29 Make radio engine tank instal lation shown plans hope have much satisfaction Hot Rock did prototype FF World Champs/Kaynes continued page 53 paid free-country entry Glider After five hours taken up rest glider fliers sorrow-drowning rubberband brigade everyone back routine going air field commencing flying 350 am time relieved find no rain rather less wind rather dark round 1 started USA drawn launch pole next USSR day giving us close view ap parent masters glider flying However soon after start Jim Walters proceeded give adept display towing moved across wind path circled downwind catapult launch first class air quite adequate 18 seconds short max Likewise both Charlie Markos Bob Sifleet little below magic three minutes total 24 recorded field 82 entries USSR Israel both full team scores what assumed would prove have difficult time day latter team included interest ing model flown Giora Herzberg well designed having slotted tailplane air foil among its features Russians continued manner round 2 Yugoslavs Austrians also treble maxes lat ter team notable having two mem bers equipped circle towing name ly Kraus 1976 European Champion Zach lucky contact gentle lift just before running out upwing tow ing space good tune gliders did go behind ridge causing some flights end line clocked off before landed 98 Model Aviation Designed expressly nel KJU witri plenty room iust about R/C up 4 channel miniature units Maintaining top quality simple construction inverted gull wing Balsa Plywood parts accurately die-cut Hardware Package including R/C Hardware full-size step-by-step Plans flat finish Decal sheet Major Gregory Pappy Boyingtons Lulubelle appeared after Oct 17 1943 raid Kahili Airfield Solomons Recommended engine sizes maximum performance 09 10 Minimal performance achieved stock 049 051 Tee Dee Diesel conversion suggested nrnduct review oroduct review Droduct review Axiflo Ducted Fans Designed expressly sport flier kits feature light-weight molded parts can assembled two evenings Intended use good stock engines fully throttable operate tank pressure Integral tail cone used tank First released 40 class engines followed 049 version injection molded A4D power Midwest Products Co Inc 400 South Indiana St Hobart IN 46342 product review product review product review weather steadily improved lift became easier find four people managed make quadruple max es Kostadin Abadjiev sole represen tative late entry Bulgaria Russian masters Andres Lepp Vic tor Chop East German Klaus Thormann some competitors seemed content waste some minutes waiting ground before launching topgrade circle towers putting im pressive display Russian towing well practiced rarely seen look model concentrated watch ing signs thermals technique launch soon timekeepers available circle position downwind line towed quite slowly straight line want ing feel air rated further inves tigation would stand still pull line maintaining line tension glider continued straight line upwind Releasing excess line allowed model enter circle mode did need run far downwind re turn tight-line straight tow after circle little evidence Russians actually measuring quality lift during circles fitness showed wanted dash off pursuit model good air sudden acceleration managed prior release Some good catapult launches seen have gained per haps 10 15 feet above line height model settled its glide North Korean Nordics often showing pronounced wing flutter during zoom Most towhooks variants Russian type different mechanisms giving basic functions straight tow slack-line circle tow high-tension zoom product review product review product review Skyray Just does need piped pattern job retracts super engine fly RC aerobatics necessary have 45 engined complex stunt machine enjoy CL aerobatics CL does Half-A have small edition championship stunter Mike Gretz numerous sport fliers mind designed Skyray use sheet-balsa wing little profile significant easy build lightand 049s spans 23% Kit includes pro file fuse sheet wing tail prebent pushrod nylon bellcrank control horn decals Kit $495 Sig Manufacturing Co Inc Monte zuma IA 50171 product review product review product review r Because know model building cant done type glue Thats Hobbypoxy makes three Formula 1 general purpose epoxy glue gives 15 minutes work ing time cures hard hour Thats just about right construction insllation components need shifted around bit perfect alignment before glue sets Formula 2 has much longer working time 45 minutes makes per fect large-area laminating planking wings can put glue ribs position skins pin down before glue hardens Formula 2 also recommended fiberglass layup fuel-proofing engine compartments surfacing resin bare balsa* Formula 4 superior version popular five minute epoxies Great quick construction quick repairs perfect joining parts impossible clamp pin st hand-hold few short minutes its done Hobbypoxy epoxy glues completely fuel proof permanently flexible Joints will never crack shatter way some other epoxies contrary popular myth Hobbypoxy epoxy glues will adhere cure properly prepared fiberglass So whatever youve got glue glue Hobby poxy original epoxy models *For complete description use Formula 2 finishing send free Poxy Painting Pointers brochure Write word glue request HIEHYPUIT PRODUCTS unlatch Lepp flying models simi lar ones flown Bulgaria 1975 built aileron der keep inner wing dropping during zoom now locked neutral instead timer used hold rudder straight about three seconds after release Thus glider would climb away line straight ahead timer set put glide turn instant speed dropped normal glide speed avoiding danger wing drop hand stalling off top other hand single pennant towline released ten-foot line hook unlatched gave timekeepers some problems Division Pettit Paint Co Inc 20 Pine Street Rockaway NJ 07866 could fooled starting watches pennant started move few seconds before actual release round 4 Walters towed alongside Lepp differences towing could watched before both launched good air Sifleet untangled line cross launching flight cruised across field about 80 feet altitude Markos also maxed make fully successful round Round 5 lit tle windier right after green flare Jim Walters Go-Bird line circling off downwind After little North Korean towed along launch line released over US pole good lift max pity Jim wasnt since flight downwind went November1977 99 3 epoxy glues 2 behind ridge loose Ii seconds Sifleet also blew round did Chop Russian team ended morning 26 seconds ahead North Koreans just three individuals left full houses scoreboard continual ly being updated results came processed Wang mini-computer system loaned Champs its output results sheets distributed aid copier lent 3M complete large donation paper time intermission before evening flights dry quite sunny becoming overcast cooled down last two rounds difficult morning ones Jim Walters complained felt nothing line during either first two last two rounds last flight enlivened line tangle suc ceeded escaping went score 151 seconds 15th place highest US team poor reward work team other classes put Champs certainty fly-off gone sixth round Thormann made bad flight Abadjiev deficit three seconds Thus Lepp just needed max last round assured Championship After towing ten minutes launched within few seconds obvious air very good model managed 2 min utes 44 seconds watched Abadjiev towing long way downwind Undoubtedly having heard impor tance good time continued tow almost half-hour before finally find ing air wanted sufficient keep model up until DTed took title Lepps disappointment apparent sportingly greeted Bulgarian way back flight top placed Nordic 1977 has Benedek 7457 section well-engi neered fuselage During celebrations night Kostadin showed reduce fuselage pile little pieces screws hook made sheet dural could removed loos ing its settings nose unscrewed wing joiner two pieces side could removed rear end adjustments could made neat thumb-wheel screws whole Russian team failed max last round let North Koreans take team prize fol lowed Russians Czechs Power Sunday difficult imagine normal life ever con sisted anything other going flying three morning feeling tired seeing world through blur astute noticed morning different others clear sky very light winds pleased power fliers day belonged caused rubber glider fliers wonder what might have happened blessed weather good Test flying went until last mo ments before green flare fired extreme East German hurriedly being stopped launching after signal thereby making advertent official flight first away fittingly defending Champ Lars G Olofsson poor transition con sequent stalls preventing max Like 1975 title holders other classes Lars G flying member na tional squad rather individual would have entitled team cost ing part organized group Al Bison nette first American fly good pattern precise 69-second en gine run giving max soon fol lowed Charlie Martin Tom Mc Laughlan give perfect team score timekeepers instructed time runs sound rather watching prop specified imprac tically FAI Sporting Code complicated lot ground run ning flight line few over-runs soon reported Canadian Frank Schlachta suffered model looped engine cut titude probably inflenced timekeepers thinking still under power af ter seven seconds whereas team claimed timed six sec onds Apart such hang-ups problems timing runs gen eral satisfaction ability timekeepers contest almost being practicing free-fighters main ly host country Round 2 Charlie glide down quickly first after tight climb until air came rescue just made max Tom also safe Al stalled badly way down landed 2 minutes 19 seconds largely story such glitches being responsible few sub-maximum flights another exam ple being West German Franz Baumann DTing early otherwise certain three minutes team taking advice Reiner Hofsass using two-chan nel thermal detector give records both temperature horizontal wind speed last two rounds morning still sunny getting warmer name game avoid strengthening downdrafts wind increased gave some trouble retrieving crews since power models landing wheat fields confines airfield Repeated appeals broadcast wander around crops searching particularly ride bikes drive cars through North Koreans driving black diplomatic Mercedes limousine over some rather un likely parts countryside Some teams using radio links crews complaining air too crowded get messages across common alternative wave flags indicate launch extra agitation show over-run consequent need quick recovery USA displaying anonymous red white flag Italians emphasized national char acteristics blowing whistles shouting gesticulating downwind help ers must have superb hearing morning closed Martin McLaughlan among total 31 still running fly-off place Cana dian British Italian teams flown faultless session give rather unaccustomed Western appearance leader board As usual evening section pro gram watched spectators nu merous today wind shift meant could accommodated ideally entrance field good view launches could read ily controlled launch line near apron lucky air craft hit model splat tered test flight frighten ing crash Redas hot high aspect ratio sheeted foam-wing ships dived crowd 200 years upwind punched hole VW camper fortunate injury slight grazing small boy Lars Olofsson joined model donking num ber-one ship VIT line strand ed wire broke already over run scored 5 seconds re serve good 55 seconds last round Exit champion Problems hit US team round 6 100 ModelAviation MR MODELER manufacture special ized accessories make R/C modeling easier never out stock items manufacture Seeyour deal er send first class stamp catalog sheets listing over 70 items complete pictures prices OVER 12 YEARS SERVICE SCALE DRAWINGS! jAT MORRISON1977 CATALOG 25$ EPLA-TECH 48500 MC KENZIE HWY InternatIonal vIDA OREGON 97488 Charlie bad transition spoil score Al came down early strength lift downers such overall max rate half morning drama Tom tried complete seventh max bubbles looked good thermis tor agreed moments took fire up launch wind creased suddenly bump went away ship veered over ended up head ing toward terra firma altitude 150 feet Somehow pulled out pre served model reflight since timekeepers unable hear motor cut second flight anticlimax easy max fol lowed other two team members also maxing team place sixth Frank Schlachta dropped few sec onds last flight Canadian team took runner-up position behind Italians made fly-off Dick Johnson made two bad flights afternoon British team plunged equal first eighth inevitable North Koreans third 22 people line fly-off being flown increasing maximums constant 7 seconds run As special concession FAI allowed 1979 method followed whereby 15-minute launch period competitors two attempts allowed Dave Sugden first air four-minute stage quickly follow ed others launching together Pity timekeepers much amazement Tom McLaughlans folding-prop white model its engine stop abruptly internal problems five seconds transition poor gadgets con tinued work though sevensecond run resulted disappoint ing 2-minute flight Newcomer British power flying Martyn Cowley managed no better shot down glide stall plagued him day perhaps related fact finished building models after arriving Denmark Sharin missed chance another stage mere three seconds ships fine engineering characterized Russian models particularly notable being automatic switch cocked took hold milled metal launch grips fuselage sides started timer released model five-minute flight attempt ed 13 contestants included Koster good model landed woods took out reserve trimming demonstrated its status diving concrete causing hur ried departure lot Danes help fetch nuriber-one ship As usual dramas kept up near start next flight Speed Cream safely retrieved soon making another max SUPER MODEL CEMENT GOOD OLD FASHIONED MODEL AIRPLANE CEMENT FOR WOOD MODELS. CAT NO 201 GOc * SUPER DISCOVERY Super Model Cement perfect bonding ABS plastic ARF airplane %0o~buyterate plastic canopys weclear helicopter bodies 0windshields etc Never before have 00found glue worked well ~for type application Primarily 0o gh its exceptional balsa wood glue Strong clear super quick drying fuel proof Super Modei Cement perfect building repairing balsa wood model microfilm thinned down full channel nc Cat No 201 . 1 oz tube only 60c covered height par others Drift still towards trees getting gloomy near ground first time reported 436 Verbitsky Reda given 413 flight went behind trees Meczners timers found have seen him ground 451 Koster flown nearly last timekeepers still staring downwind Eventually announced time 540 give local man victory clear margin 39 seconds much jubilation Thomas last succeeded adding power crown won 1965 Wakefield moreover should have happened world champs responsible much planning made run smoothly helping daily running extent five hours earlier same afternoon directing cars airfield parking lots parties went through night real vigor energy Danish room Despite overall fatigue different nationalities toasting another strange potent liquids well swapping T-shirts modeling gear Russian team did welf direction since CCCP shirts great demand British room next keen lay hands some Thomas comparatively conservative model sheeted wings moderate aspect ratio 6% flat-bottom airfoil triple fins lacking either gadgets has associ ated recentlyflaps electronic timers joined seven others next round among conventionally pro portioned structures characterized models Meczner Hungary Velunsek Yugoslavia Lustrati Italy Higher aspect ratios favoured Sugden Schaller Reda Verbitskys models similar layout flown Plovdiv notable having wings covered 0001 alumina sheet acquired helicopter indus try Applied sheet-covered rib frame work aluminum tube leading edge gave extremely high torsional stiffness unintentionally dismantled flew some power linesin advisable metal airplane gave us opportunity examine structure through resulting holes Ap parently owing illness after snake bite USSR Nats Eugeny could tend Champs person mod els proxy-flown Silberg threw much vigor puts launching own Wakefields gathering produced classic dis play best power flying Urs Shal ler probably reached greatest altitude looped over top re November1977 101 N DUBRO PRODUCTS INCORPORATED 480 Bonner Road Wauconda Illinois e60084 USA equipment No-one traded Silbergs Wakefield putting sale $180 Little energy remained morning tourist trip arranged additional fee gave visit local reconstruction Viking settle ment few hours Roskilde main tourist attraction mu seum ships recovered sea after 1000 years recon structed no such differences ob jectives evening Everyone joined buses ride Ringsted Speedway track banquet held good meal served prize presentation took place dance floor splitlevel restaurant very few people could see climax Champion ships Later could walk round tables note overflowing North Koreans bounty time dictated join buses back school festive spirit still continued very little sleep before bid farewells until next time Air Camper/Haught continued page 55 air-speed indicator tachometer altimeter rear cockpit switches throttle knobs simulated hat pins round-head sewing pins matching sizes engine radiator built balsa scrap finished flat black Carve engine block shape add exhaust intake pipes cut appropriate sized plastic tubing radiator hoses latter left removeable allow access en gine water pump pulley added after engine painted small plastic band serves belt spark plugs simulated cutting small lengths 1/16 3/32 aluminum tubes slipped over bare ends fine cop per wires inserted respective positions engine block individ ual wires bound together form ignition harness small strips black electrical tape Refer plans add remaining details such carburetor oil filler dip stick mount engine onto plywood floor secure cowl dress snaps radiator built up around balsa frame fine plastic screen mesh discarded screen door Now wing Youll notice airfoil conveniently undercambered complicate wing construction Dont feel guiltyits scale wing also basic except plug-in feature main spars spruce leading edge remaining wing structure balsa Use hard balsa around ailerons take care insure fit well hinged Two 1/16 inside diameter alumi num tubes bound thread main spars roots like Nordic should align slide easily onto 1/16 music wire wing joiners center section anchored aluminum wing struts top bottom planked off-center hinged flap trailing edge hinged two straight pins indicated plans wing struts functional must rigid Cut /8 X ce strip sand airfoil section Adjust length struts give wing di hedral compensate warps wire fittings can made sewn onto ends struts model now ready finish used colored Japanese tissue keep weight down original weight really big problem model Finish model favorite method trim match Air Camper modeling wing tank drawn using technical pen strips black tissue can used control horns rigging cables now can fabricated added used elastic thread aileron cables could disconnect plug wings wheels can either made plywood discs black rubber tubing commercial vintage wheels can fitted Check model alignment warps balance taking care needed surfaces zero-zero test glide model over lawn youve neglected very purpose satis fied glide trim secure trim weight head flying site After flying free flight scale few years November1977 103 Please send me copies new third edition Radio Control Buyers Guide Enclosed $500 copy ordered $425 Guide plus $75 postage handling Total Enclosed ______________US Canada Ordes Onliv