II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames free-flow ventilation Extremely light weight added comfort Attractive case included Wraparound frame fits comfortably over prescription glasses Blocks harmful-. 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FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC 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S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames free-flow ventilation Extremely light weight added comfort Attractive case included Wraparound frame fits comfortably over prescription glasses Blocks harmful-. Quartz mist ultraviolet radiationcoated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Prices include shipping handlingSecretary Treasurer Pikes Peak RC Club LtJPIII See hobby dealer first ___ doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 6011924-9640 GRUMMAN ALBATROSS HU-16B 81 inchwingspan8tOaqinChesl3IbS Twin 40 2C engine size rglass fuselage wing stab coea Includes wood formed cowls nacelles 825996 plus shipping tax applicable Retractable landing gear kit$14896 90 minute VHS video building flying .. $2486 VISA/MC CONSOLIDATED PBY-5A CATALINA 81 inchwingapanee9sqinchesll lbs Twin 30-40 engine size rglass fuselage um formed clear acetate cockpit blisters formed atyrene cowls nacelles ormed landing gear lsnd operation actable wing floats 823995 plus shipping tax applicable 90 minute VHS video building flying .. *2496 G & P SALES 410 College Ave Angwin CA 94508707-965-3866 II II II II Washable Rugged Cap Sunglasses Flip Up/Down Adjust In/Out Snap On/Off Imprints Available II Please send _____________ caps Ive enclosedI @ $795 plus $2 shipping handlingI Lens Colors 0 Amber 0 Smoke blueI Cap Colors 0 Black 0 white U Yellow El Green El Navy blue 0 Royal blue UJMaroon OGrey ORedI II 0 Please send information about imprinting PLEASE PRINTI NamuI Addreuu cityI Slum ________________________________Zip ________I RETURN WITH CHECK OR MONEY OROER ONLY TO PIN-NIK SALES PO Box 647 Ravenna OH 44266 L December 1989 121 Another Groat Twin Amnhlblan 0 & P SAL ES SWEITZER ENTERPRISES P0 SOX 834HILLS5OSO 05 97123 05055 503540 Sf02 DH 89A Rapj4 se spon SCALE 20 4 SheS 3Ff 05Ff 85865121 50 -6 0*5500 5O5ELI5eT-515 F1B550LA55 cswf5 21 seeas ENGINE5 FINEST IN SCASUPER SCALE PLANS RYANPT22 E Essier IV Is O~ WINOSPAN 4 4 sffeets3 Ft 110FfFibeg1555 Fosoisge lAdd $10 ointoiIl -$125 PLANS $4996FIbfgfOEE p515 COV2IWtOtflO $85 CArALOOS 5flt LG$15 f-VIEWS pu0f0SM*Mu2cS M5MAVL WLAC5 0005555W155 *55 5450 FeeElse WSEFI5EA5 505665 52058 Pit Special COMPLETELY ENCLOSES Valuable Equipment Holds props 18 Accepts cans jugs Most Useful Enclosed Storage wIth Smallest SIze YouII LOVE IT! HAND MADE IN THE USA KITS ASSEMBLED UNITS WITH FUEL PROOF FINISH INSIDE & OUT KIT...54496 FINISHED KT .. $6996 ASSEMBLED. $5996 ASSMiFINISIIED . $7996 Srert4 Engineered Hand Crafted Flight Squport Unds FIRST EVER offered Kh form wth Beautiful Fuel-Proof Finish already applied1 Available Finaihed Unfinshed K Assembled Assembled unha Include gal METAL CAN Units GUARANTEED against defects Attractive Durable Odh 1/4 Ply Corutruction fluflIflpIam. FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC spans 48/a in S 650 No 528 Swallow PC Lightweight holdogger Ion 40-size lour-strolee engines spans 50 itS 825 No 531 Terrible coupe PP Pubber-puwered Coupe OPiner spans 40 contest-winner $ 475 No 533 cesana c-37 PC Schoolyard Scale 01 famous DOs plane Ion 049110 power 2-ch spans 42 It 0 No 539 Simitar Slow-Motion 15 PC Tailless llyitg wino ton 15 engines spats 60 eons 3-ch PC 350 No 554 Super Doubler II PC Sport AerobaticoPylon tsr 40148 loot-stroke engine spans 57 in 5 575 No 569 Electroatreak PC Electric aerobatic plane spans 44 in. noes 05 motor $ 550 No 570 Busy Bee FF Pee Wee-30 plane Ion 02 power spans 30 has either sheet-balsa er built-up surlaces 5 400 No 572 TR-260 PC Sport Scale Aerobatic plane fur 4-stroke 60/65 powee spans 66 5 1100 No 575 ScorpIon 60 PC Pushy aerobatic plane 60 power spans 58/a 50 No 576 Serendipityf ndent EZB record-holder spans 17n/u $ 325 No 578 Schweizer 1-26B PC Quarter-scale Sailplane spans 125 Two plan sheets9 1475 No 581 Gee Bee Model Y PC Golden Age Pacer spurs 72 iA scale 00 power Three plan sheets S 11 75 No 583 Sporewagon PC Padlo-ined spurt PF model spans 54 in. uses 10/15 engine $ 700 No 586 Snapdragon PC Pun-tly/spnrtster 25/30 engines spans 45/e inS 600 No 588 Marlah PC Slupe-Soaring Sailplane spans 41 ones 2 PC channelsS 425 No 593 Taylorcraft PC Sport Scale lightplane builds standard 2-placer clipped-wing air shnw stunter Spans either 70 er 501/a 30/40 twe-strnke 40/40 tour-stroke engine Twn plan sheets no docementatien 9 1000 No 595 Sparrow PC Sportoter 25 engines spans 43 in. . S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames free-flow ventilation Extremely light weight added comfort Attractive case included Wraparound frame fits comfortably over prescription glasses Blocks harmful-. Quartz mist ultraviolet radiationcoated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Prices include shipping handlingSecretary Treasurer Pikes Peak RC Club LtJPIII See hobby dealer first ___ doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 6011924-9640 GRUMMAN ALBATROSS HU-16B 81 inchwingspan8tOaqinChesl3IbS Twin 40 2C engine size rglass fuselage wing stab coea Includes wood formed cowls nacelles 825996 plus shipping tax applicable Retractable landing gear kit$14896 90 minute VHS video building flying .. $2486 VISA/MC CONSOLIDATED PBY-5A CATALINA 81 inchwingapanee9sqinchesll lbs Twin 30-40 engine size rglass fuselage um formed clear acetate cockpit blisters formed atyrene cowls nacelles ormed landing gear lsnd operation actable wing floats 823995 plus shipping tax applicable 90 minute VHS video building flying .. *2496 G & P SALES 410 College Ave Angwin CA 94508707-965-3866 II II II II Washable Rugged Cap Sunglasses Flip Up/Down Adjust In/Out Snap On/Off Imprints Available II Please send _____________ caps Ive enclosedI @ $795 plus $2 shipping handlingI Lens Colors 0 Amber 0 Smoke blueI Cap Colors 0 Black 0 white U Yellow El Green El Navy blue 0 Royal blue UJMaroon OGrey ORedI II 0 Please send information about imprinting PLEASE PRINTI NamuI Addreuu cityI Slum ________________________________Zip ________I RETURN WITH CHECK OR MONEY OROER ONLY TO PIN-NIK SALES PO Box 647 Ravenna OH 44266 L December 1989 121 Another Groat Twin Amnhlblan 0 & P SAL ES SWEITZER ENTERPRISES P0 SOX 834HILLS5OSO 05 97123 05055 503540 Sf02 DH 89A Rapj4 se spon SCALE 20 4 SheS 3Ff 05Ff 85865121 50 -6 0*5500 5O5ELI5eT-515 F1B550LA55 cswf5 21 seeas ENGINE5 FINEST IN SCASUPER SCALE PLANS RYANPT22 E Essier IV Is O~ WINOSPAN 4 4 sffeets3 Ft 110FfFibeg1555 Fosoisge lAdd $10 ointoiIl -$125 PLANS $4996FIbfgfOEE p515 COV2IWtOtflO $85 CArALOOS 5flt LG$15 f-VIEWS pu0f0SM*Mu2cS M5MAVL WLAC5 0005555W155 *55 5450 FeeElse WSEFI5EA5 505665 52058 Pit Special COMPLETELY ENCLOSES Valuable Equipment Holds props 18 Accepts cans jugs Most Useful Enclosed Storage wIth Smallest SIze YouII LOVE IT! HAND MADE IN THE USA KITS ASSEMBLED UNITS WITH FUEL PROOF FINISH INSIDE & OUT KIT...54496 FINISHED KT .. $6996 ASSEMBLED. $5996 ASSMiFINISIIED . $7996 Srert4 Engineered Hand Crafted Flight Squport Unds FIRST EVER offered Kh form wth Beautiful Fuel-Proof Finish already applied1 Available Finaihed Unfinshed K Assembled Assembled unha Include gal METAL CAN Units GUARANTEED against defects Attractive Durable Odh 1/4 Ply Corutruction fluflIflpIam. FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC spans 48/a in S 650 No 528 Swallow PC Lightweight holdogger Ion 40-size lour-strolee engines spans 50 itS 825 No 531 Terrible coupe PP Pubber-puwered Coupe OPiner spans 40 contest-winner $ 475 No 533 cesana c-37 PC Schoolyard Scale 01 famous DOs plane Ion 049110 power 2-ch spans 42 It 0 No 539 Simitar Slow-Motion 15 PC Tailless llyitg wino ton 15 engines spats 60 eons 3-ch PC 350 No 554 Super Doubler II PC Sport AerobaticoPylon tsr 40148 loot-stroke engine spans 57 in 5 575 No 569 Electroatreak PC Electric aerobatic plane spans 44 in. noes 05 motor $ 550 No 570 Busy Bee FF Pee Wee-30 plane Ion 02 power spans 30 has either sheet-balsa er built-up surlaces 5 400 No 572 TR-260 PC Sport Scale Aerobatic plane fur 4-stroke 60/65 powee spans 66 5 1100 No 575 ScorpIon 60 PC Pushy aerobatic plane 60 power spans 58/a 50 No 576 Serendipityf ndent EZB record-holder spans 17n/u $ 325 No 578 Schweizer 1-26B PC Quarter-scale Sailplane spans 125 Two plan sheets9 1475 No 581 Gee Bee Model Y PC Golden Age Pacer spurs 72 iA scale 00 power Three plan sheets S 11 75 No 583 Sporewagon PC Padlo-ined spurt PF model spans 54 in. uses 10/15 engine $ 700 No 586 Snapdragon PC Pun-tly/spnrtster 25/30 engines spans 45/e inS 600 No 588 Marlah PC Slupe-Soaring Sailplane spans 41 ones 2 PC channelsS 425 No 593 Taylorcraft PC Sport Scale lightplane builds standard 2-placer clipped-wing air shnw stunter Spans either 70 er 501/a 30/40 twe-strnke 40/40 tour-stroke engine Twn plan sheets no docementatien 9 1000 No 595 Sparrow PC Sportoter 25 engines spans 43 in. . S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. 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HAND MADE IN THE USA KITS ASSEMBLED UNITS WITH FUEL PROOF FINISH INSIDE & OUT KIT...54496 FINISHED KT .. $6996 ASSEMBLED. $5996 ASSMiFINISIIED . $7996 Srert4 Engineered Hand Crafted Flight Squport Unds FIRST EVER offered Kh form wth Beautiful Fuel-Proof Finish already applied1 Available Finaihed Unfinshed K Assembled Assembled unha Include gal METAL CAN Units GUARANTEED against defects Attractive Durable Odh 1/4 Ply Corutruction fluflIflpIam. FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC spans 48/a in S 650 No 528 Swallow PC Lightweight holdogger Ion 40-size lour-strolee engines spans 50 itS 825 No 531 Terrible coupe PP Pubber-puwered Coupe OPiner spans 40 contest-winner $ 475 No 533 cesana c-37 PC Schoolyard Scale 01 famous DOs plane Ion 049110 power 2-ch spans 42 It 0 No 539 Simitar Slow-Motion 15 PC Tailless llyitg wino ton 15 engines spats 60 eons 3-ch PC 350 No 554 Super Doubler II PC Sport AerobaticoPylon tsr 40148 loot-stroke engine spans 57 in 5 575 No 569 Electroatreak PC Electric aerobatic plane spans 44 in. noes 05 motor $ 550 No 570 Busy Bee FF Pee Wee-30 plane Ion 02 power spans 30 has either sheet-balsa er built-up surlaces 5 400 No 572 TR-260 PC Sport Scale Aerobatic plane fur 4-stroke 60/65 powee spans 66 5 1100 No 575 ScorpIon 60 PC Pushy aerobatic plane 60 power spans 58/a 50 No 576 Serendipityf ndent EZB record-holder spans 17n/u $ 325 No 578 Schweizer 1-26B PC Quarter-scale Sailplane spans 125 Two plan sheets9 1475 No 581 Gee Bee Model Y PC Golden Age Pacer spurs 72 iA scale 00 power Three plan sheets S 11 75 No 583 Sporewagon PC Padlo-ined spurt PF model spans 54 in. uses 10/15 engine $ 700 No 586 Snapdragon PC Pun-tly/spnrtster 25/30 engines spans 45/e inS 600 No 588 Marlah PC Slupe-Soaring Sailplane spans 41 ones 2 PC channelsS 425 No 593 Taylorcraft PC Sport Scale lightplane builds standard 2-placer clipped-wing air shnw stunter Spans either 70 er 501/a 30/40 twe-strnke 40/40 tour-stroke engine Twn plan sheets no docementatien 9 1000 No 595 Sparrow PC Sportoter 25 engines spans 43 in. . S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. 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Quartz mist ultraviolet radiationcoated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Prices include shipping handlingSecretary Treasurer Pikes Peak RC Club LtJPIII See hobby dealer first ___ doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 6011924-9640 GRUMMAN ALBATROSS HU-16B 81 inchwingspan8tOaqinChesl3IbS Twin 40 2C engine size rglass fuselage wing stab coea Includes wood formed cowls nacelles 825996 plus shipping tax applicable Retractable landing gear kit$14896 90 minute VHS video building flying .. $2486 VISA/MC CONSOLIDATED PBY-5A CATALINA 81 inchwingapanee9sqinchesll lbs Twin 30-40 engine size rglass fuselage um formed clear acetate cockpit blisters formed atyrene cowls nacelles ormed landing gear lsnd operation actable wing floats 823995 plus shipping tax applicable 90 minute VHS video building flying .. *2496 G & P SALES 410 College Ave Angwin CA 94508707-965-3866 II II II II Washable Rugged Cap Sunglasses Flip Up/Down Adjust In/Out Snap On/Off Imprints Available II Please send _____________ caps Ive enclosedI @ $795 plus $2 shipping handlingI Lens Colors 0 Amber 0 Smoke blueI Cap Colors 0 Black 0 white U Yellow El Green El Navy blue 0 Royal blue UJMaroon OGrey ORedI II 0 Please send information about imprinting PLEASE PRINTI NamuI Addreuu cityI Slum ________________________________Zip ________I RETURN WITH CHECK OR MONEY OROER ONLY TO PIN-NIK SALES PO Box 647 Ravenna OH 44266 L December 1989 121 Another Groat Twin Amnhlblan 0 & P SAL ES SWEITZER ENTERPRISES P0 SOX 834HILLS5OSO 05 97123 05055 503540 Sf02 DH 89A Rapj4 se spon SCALE 20 4 SheS 3Ff 05Ff 85865121 50 -6 0*5500 5O5ELI5eT-515 F1B550LA55 cswf5 21 seeas ENGINE5 FINEST IN SCASUPER SCALE PLANS RYANPT22 E Essier IV Is O~ WINOSPAN 4 4 sffeets3 Ft 110FfFibeg1555 Fosoisge lAdd $10 ointoiIl -$125 PLANS $4996FIbfgfOEE p515 COV2IWtOtflO $85 CArALOOS 5flt LG$15 f-VIEWS pu0f0SM*Mu2cS M5MAVL WLAC5 0005555W155 *55 5450 FeeElse WSEFI5EA5 505665 52058 Pit Special COMPLETELY ENCLOSES Valuable Equipment Holds props 18 Accepts cans jugs Most Useful Enclosed Storage wIth Smallest SIze YouII LOVE IT! 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FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC 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S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames free-flow ventilation Extremely light weight added comfort Attractive case included Wraparound frame fits comfortably over prescription glasses Blocks harmful-. Quartz mist ultraviolet radiationcoated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Prices include shipping handlingSecretary Treasurer Pikes Peak RC Club LtJPIII See hobby dealer first ___ doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 6011924-9640 GRUMMAN ALBATROSS HU-16B 81 inchwingspan8tOaqinChesl3IbS Twin 40 2C engine size rglass fuselage wing stab coea Includes wood formed cowls nacelles 825996 plus shipping tax applicable Retractable landing gear kit$14896 90 minute VHS video building flying .. $2486 VISA/MC CONSOLIDATED PBY-5A CATALINA 81 inchwingapanee9sqinchesll lbs Twin 30-40 engine size rglass fuselage um formed clear acetate cockpit blisters formed atyrene cowls nacelles ormed landing gear lsnd operation actable wing floats 823995 plus shipping tax applicable 90 minute VHS video building flying .. *2496 G & P SALES 410 College Ave Angwin CA 94508707-965-3866 II II II II Washable Rugged Cap Sunglasses Flip Up/Down Adjust In/Out Snap On/Off Imprints Available II Please send _____________ caps Ive enclosedI @ $795 plus $2 shipping handlingI Lens Colors 0 Amber 0 Smoke blueI Cap Colors 0 Black 0 white U Yellow El Green El Navy blue 0 Royal blue UJMaroon OGrey ORedI II 0 Please send information about imprinting PLEASE PRINTI NamuI Addreuu cityI Slum ________________________________Zip ________I RETURN WITH CHECK OR MONEY OROER ONLY TO PIN-NIK SALES PO Box 647 Ravenna OH 44266 L December 1989 121 Another Groat Twin Amnhlblan 0 & P SAL ES SWEITZER ENTERPRISES P0 SOX 834HILLS5OSO 05 97123 05055 503540 Sf02 DH 89A Rapj4 se spon SCALE 20 4 SheS 3Ff 05Ff 85865121 50 -6 0*5500 5O5ELI5eT-515 F1B550LA55 cswf5 21 seeas ENGINE5 FINEST IN SCASUPER SCALE PLANS RYANPT22 E Essier IV Is O~ WINOSPAN 4 4 sffeets3 Ft 110FfFibeg1555 Fosoisge lAdd $10 ointoiIl -$125 PLANS $4996FIbfgfOEE p515 COV2IWtOtflO $85 CArALOOS 5flt LG$15 f-VIEWS pu0f0SM*Mu2cS M5MAVL WLAC5 0005555W155 *55 5450 FeeElse WSEFI5EA5 505665 52058 Pit Special COMPLETELY ENCLOSES Valuable Equipment Holds props 18 Accepts cans jugs Most Useful Enclosed Storage wIth Smallest SIze YouII LOVE IT! HAND MADE IN THE USA KITS ASSEMBLED UNITS WITH FUEL PROOF FINISH INSIDE & OUT KIT...54496 FINISHED KT .. $6996 ASSEMBLED. $5996 ASSMiFINISIIED . $7996 Srert4 Engineered Hand Crafted Flight Squport Unds FIRST EVER offered Kh form wth Beautiful Fuel-Proof Finish already applied1 Available Finaihed Unfinshed K Assembled Assembled unha Include gal METAL CAN Units GUARANTEED against defects Attractive Durable Odh 1/4 Ply Corutruction fluflIflpIam. FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC spans 48/a in S 650 No 528 Swallow PC Lightweight holdogger Ion 40-size lour-strolee engines spans 50 itS 825 No 531 Terrible coupe PP Pubber-puwered Coupe OPiner spans 40 contest-winner $ 475 No 533 cesana c-37 PC Schoolyard Scale 01 famous DOs plane Ion 049110 power 2-ch spans 42 It 0 No 539 Simitar Slow-Motion 15 PC Tailless llyitg wino ton 15 engines spats 60 eons 3-ch PC 350 No 554 Super Doubler II PC Sport AerobaticoPylon tsr 40148 loot-stroke engine spans 57 in 5 575 No 569 Electroatreak PC Electric aerobatic plane spans 44 in. noes 05 motor $ 550 No 570 Busy Bee FF Pee Wee-30 plane Ion 02 power spans 30 has either sheet-balsa er built-up surlaces 5 400 No 572 TR-260 PC Sport Scale Aerobatic plane fur 4-stroke 60/65 powee spans 66 5 1100 No 575 ScorpIon 60 PC Pushy aerobatic plane 60 power spans 58/a 50 No 576 Serendipityf ndent EZB record-holder spans 17n/u $ 325 No 578 Schweizer 1-26B PC Quarter-scale Sailplane spans 125 Two plan sheets9 1475 No 581 Gee Bee Model Y PC Golden Age Pacer spurs 72 iA scale 00 power Three plan sheets S 11 75 No 583 Sporewagon PC Padlo-ined spurt PF model spans 54 in. uses 10/15 engine $ 700 No 586 Snapdragon PC Pun-tly/spnrtster 25/30 engines spans 45/e inS 600 No 588 Marlah PC Slupe-Soaring Sailplane spans 41 ones 2 PC channelsS 425 No 593 Taylorcraft PC Sport Scale lightplane builds standard 2-placer clipped-wing air shnw stunter Spans either 70 er 501/a 30/40 twe-strnke 40/40 tour-stroke engine Twn plan sheets no docementatien 9 1000 No 595 Sparrow PC Sportoter 25 engines spans 43 in. . S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames free-flow ventilation Extremely light weight added comfort Attractive case included Wraparound frame fits comfortably over prescription glasses Blocks harmful-. Quartz mist ultraviolet radiationcoated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Prices include shipping handlingSecretary Treasurer Pikes Peak RC Club LtJPIII See hobby dealer first ___ doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 6011924-9640 GRUMMAN ALBATROSS HU-16B 81 inchwingspan8tOaqinChesl3IbS Twin 40 2C engine size rglass fuselage wing stab coea Includes wood formed cowls nacelles 825996 plus shipping tax applicable Retractable landing gear kit$14896 90 minute VHS video building flying .. $2486 VISA/MC CONSOLIDATED PBY-5A CATALINA 81 inchwingapanee9sqinchesll lbs Twin 30-40 engine size rglass fuselage um formed clear acetate cockpit blisters formed atyrene cowls nacelles ormed landing gear lsnd operation actable wing floats 823995 plus shipping tax applicable 90 minute VHS video building flying .. *2496 G & P SALES 410 College Ave Angwin CA 94508707-965-3866 II II II II Washable Rugged Cap Sunglasses Flip Up/Down Adjust In/Out Snap On/Off Imprints Available II Please send _____________ caps Ive enclosedI @ $795 plus $2 shipping handlingI Lens Colors 0 Amber 0 Smoke blueI Cap Colors 0 Black 0 white U Yellow El Green El Navy blue 0 Royal blue UJMaroon OGrey ORedI II 0 Please send information about imprinting PLEASE PRINTI NamuI Addreuu cityI Slum ________________________________Zip ________I RETURN WITH CHECK OR MONEY OROER ONLY TO PIN-NIK SALES PO Box 647 Ravenna OH 44266 L December 1989 121 Another Groat Twin Amnhlblan 0 & P SAL ES SWEITZER ENTERPRISES P0 SOX 834HILLS5OSO 05 97123 05055 503540 Sf02 DH 89A Rapj4 se spon SCALE 20 4 SheS 3Ff 05Ff 85865121 50 -6 0*5500 5O5ELI5eT-515 F1B550LA55 cswf5 21 seeas ENGINE5 FINEST IN SCASUPER SCALE PLANS RYANPT22 E Essier IV Is O~ WINOSPAN 4 4 sffeets3 Ft 110FfFibeg1555 Fosoisge lAdd $10 ointoiIl -$125 PLANS $4996FIbfgfOEE p515 COV2IWtOtflO $85 CArALOOS 5flt LG$15 f-VIEWS pu0f0SM*Mu2cS M5MAVL WLAC5 0005555W155 *55 5450 FeeElse WSEFI5EA5 505665 52058 Pit Special COMPLETELY ENCLOSES Valuable Equipment Holds props 18 Accepts cans jugs Most Useful Enclosed Storage wIth Smallest SIze YouII LOVE IT! HAND MADE IN THE USA KITS ASSEMBLED UNITS WITH FUEL PROOF FINISH INSIDE & OUT KIT...54496 FINISHED KT .. $6996 ASSEMBLED. $5996 ASSMiFINISIIED . $7996 Srert4 Engineered Hand Crafted Flight Squport Unds FIRST EVER offered Kh form wth Beautiful Fuel-Proof Finish already applied1 Available Finaihed Unfinshed K Assembled Assembled unha Include gal METAL CAN Units GUARANTEED against defects Attractive Durable Odh 1/4 Ply Corutruction fluflIflpIam. FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC spans 48/a in S 650 No 528 Swallow PC Lightweight holdogger Ion 40-size lour-strolee engines spans 50 itS 825 No 531 Terrible coupe PP Pubber-puwered Coupe OPiner spans 40 contest-winner $ 475 No 533 cesana c-37 PC Schoolyard Scale 01 famous DOs plane Ion 049110 power 2-ch spans 42 It 0 No 539 Simitar Slow-Motion 15 PC Tailless llyitg wino ton 15 engines spats 60 eons 3-ch PC 350 No 554 Super Doubler II PC Sport AerobaticoPylon tsr 40148 loot-stroke engine spans 57 in 5 575 No 569 Electroatreak PC Electric aerobatic plane spans 44 in. noes 05 motor $ 550 No 570 Busy Bee FF Pee Wee-30 plane Ion 02 power spans 30 has either sheet-balsa er built-up surlaces 5 400 No 572 TR-260 PC Sport Scale Aerobatic plane fur 4-stroke 60/65 powee spans 66 5 1100 No 575 ScorpIon 60 PC Pushy aerobatic plane 60 power spans 58/a 50 No 576 Serendipityf ndent EZB record-holder spans 17n/u $ 325 No 578 Schweizer 1-26B PC Quarter-scale Sailplane spans 125 Two plan sheets9 1475 No 581 Gee Bee Model Y PC Golden Age Pacer spurs 72 iA scale 00 power Three plan sheets S 11 75 No 583 Sporewagon PC Padlo-ined spurt PF model spans 54 in. uses 10/15 engine $ 700 No 586 Snapdragon PC Pun-tly/spnrtster 25/30 engines spans 45/e inS 600 No 588 Marlah PC Slupe-Soaring Sailplane spans 41 ones 2 PC channelsS 425 No 593 Taylorcraft PC Sport Scale lightplane builds standard 2-placer clipped-wing air shnw stunter Spans either 70 er 501/a 30/40 twe-strnke 40/40 tour-stroke engine Twn plan sheets no docementatien 9 1000 No 595 Sparrow PC Sportoter 25 engines spans 43 in. . S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames free-flow ventilation Extremely light weight added comfort Attractive case included Wraparound frame fits comfortably over prescription glasses Blocks harmful-. Quartz mist ultraviolet radiationcoated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Prices include shipping handlingSecretary Treasurer Pikes Peak RC Club LtJPIII See hobby dealer first ___ doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 6011924-9640 GRUMMAN ALBATROSS HU-16B 81 inchwingspan8tOaqinChesl3IbS Twin 40 2C engine size rglass fuselage wing stab coea Includes wood formed cowls nacelles 825996 plus shipping tax applicable Retractable landing gear kit$14896 90 minute VHS video building flying .. $2486 VISA/MC CONSOLIDATED PBY-5A CATALINA 81 inchwingapanee9sqinchesll lbs Twin 30-40 engine size rglass fuselage um formed clear acetate cockpit blisters formed atyrene cowls nacelles ormed landing gear lsnd operation actable wing floats 823995 plus shipping tax applicable 90 minute VHS video building flying .. *2496 G & P SALES 410 College Ave Angwin CA 94508707-965-3866 II II II II Washable Rugged Cap Sunglasses Flip Up/Down Adjust In/Out Snap On/Off Imprints Available II Please send _____________ caps Ive enclosedI @ $795 plus $2 shipping handlingI Lens Colors 0 Amber 0 Smoke blueI Cap Colors 0 Black 0 white U Yellow El Green El Navy blue 0 Royal blue UJMaroon OGrey ORedI II 0 Please send information about imprinting PLEASE PRINTI NamuI Addreuu cityI Slum ________________________________Zip ________I RETURN WITH CHECK OR MONEY OROER ONLY TO PIN-NIK SALES PO Box 647 Ravenna OH 44266 L December 1989 121 Another Groat Twin Amnhlblan 0 & P SAL ES SWEITZER ENTERPRISES P0 SOX 834HILLS5OSO 05 97123 05055 503540 Sf02 DH 89A Rapj4 se spon SCALE 20 4 SheS 3Ff 05Ff 85865121 50 -6 0*5500 5O5ELI5eT-515 F1B550LA55 cswf5 21 seeas ENGINE5 FINEST IN SCASUPER SCALE PLANS RYANPT22 E Essier IV Is O~ WINOSPAN 4 4 sffeets3 Ft 110FfFibeg1555 Fosoisge lAdd $10 ointoiIl -$125 PLANS $4996FIbfgfOEE p515 COV2IWtOtflO $85 CArALOOS 5flt LG$15 f-VIEWS pu0f0SM*Mu2cS M5MAVL WLAC5 0005555W155 *55 5450 FeeElse WSEFI5EA5 505665 52058 Pit Special COMPLETELY ENCLOSES Valuable Equipment Holds props 18 Accepts cans jugs Most Useful Enclosed Storage wIth Smallest SIze YouII LOVE IT! HAND MADE IN THE USA KITS ASSEMBLED UNITS WITH FUEL PROOF FINISH INSIDE & OUT KIT...54496 FINISHED KT .. $6996 ASSEMBLED. $5996 ASSMiFINISIIED . $7996 Srert4 Engineered Hand Crafted Flight Squport Unds FIRST EVER offered Kh form wth Beautiful Fuel-Proof Finish already applied1 Available Finaihed Unfinshed K Assembled Assembled unha Include gal METAL CAN Units GUARANTEED against defects Attractive Durable Odh 1/4 Ply Corutruction fluflIflpIam. FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC spans 48/a in S 650 No 528 Swallow PC Lightweight holdogger Ion 40-size lour-strolee engines spans 50 itS 825 No 531 Terrible coupe PP Pubber-puwered Coupe OPiner spans 40 contest-winner $ 475 No 533 cesana c-37 PC Schoolyard Scale 01 famous DOs plane Ion 049110 power 2-ch spans 42 It 0 No 539 Simitar Slow-Motion 15 PC Tailless llyitg wino ton 15 engines spats 60 eons 3-ch PC 350 No 554 Super Doubler II PC Sport AerobaticoPylon tsr 40148 loot-stroke engine spans 57 in 5 575 No 569 Electroatreak PC Electric aerobatic plane spans 44 in. noes 05 motor $ 550 No 570 Busy Bee FF Pee Wee-30 plane Ion 02 power spans 30 has either sheet-balsa er built-up surlaces 5 400 No 572 TR-260 PC Sport Scale Aerobatic plane fur 4-stroke 60/65 powee spans 66 5 1100 No 575 ScorpIon 60 PC Pushy aerobatic plane 60 power spans 58/a 50 No 576 Serendipityf ndent EZB record-holder spans 17n/u $ 325 No 578 Schweizer 1-26B PC Quarter-scale Sailplane spans 125 Two plan sheets9 1475 No 581 Gee Bee Model Y PC Golden Age Pacer spurs 72 iA scale 00 power Three plan sheets S 11 75 No 583 Sporewagon PC Padlo-ined spurt PF model spans 54 in. uses 10/15 engine $ 700 No 586 Snapdragon PC Pun-tly/spnrtster 25/30 engines spans 45/e inS 600 No 588 Marlah PC Slupe-Soaring Sailplane spans 41 ones 2 PC channelsS 425 No 593 Taylorcraft PC Sport Scale lightplane builds standard 2-placer clipped-wing air shnw stunter Spans either 70 er 501/a 30/40 twe-strnke 40/40 tour-stroke engine Twn plan sheets no docementatien 9 1000 No 595 Sparrow PC Sportoter 25 engines spans 43 in. . S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. 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FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 CL 1/DA Scale Racer 049 power spans 20 No 193 Stiletto CL Stunt model McDonald winner 1976 1980 1982 FAI World Champs 5 3 75 No 262 crashmaster CL Crash-proot trainer two sizes1530 35/40 power... 25 No 310 1930 Fleet Biplane RC Sport Scale lot 35/40 4-chornol Wingopan 56 i/s scale Two sheets 25 No 314 Drake II PC Ken Willords tlpino boot ter 3-channel ower Fly trom lard eemooable gearS 375 No 326 Taylor cub PC Don Srulls Schoolyard-Scale 040s 2-3 chattel Spats 50 in$ 350 No 332 Zephyr PC Small 2-channel glider Ion hard-launch tow thermal slope soariog 0 No 386 Laser 200 PC Sport Scale replica championship Aerobatic Uses 40 power 4-5 channel Two sneets 9 1075 No 447 1J2A Miss America PC Old-Timer /aO Texaco model 049 glow 2-channels 9 650 No 460 4-40 PC Shoulder-wing sport tsr 4-cycle 40-sine engite 4 channels $ 050 No 469 Blue Max II PC Fat-lip sponster ton 40-size etgines spans 52 Lightweight structure $ 700 No 521 comet Jr clipper Plus 35% PC Old-Timer sportoter lot engite 2-ch PC spans 48/a in S 650 No 528 Swallow PC Lightweight holdogger Ion 40-size lour-strolee engines spans 50 itS 825 No 531 Terrible coupe PP Pubber-puwered Coupe OPiner spans 40 contest-winner $ 475 No 533 cesana c-37 PC Schoolyard Scale 01 famous DOs plane Ion 049110 power 2-ch spans 42 It 0 No 539 Simitar Slow-Motion 15 PC Tailless llyitg wino ton 15 engines spats 60 eons 3-ch PC 350 No 554 Super Doubler II PC Sport AerobaticoPylon tsr 40148 loot-stroke engine spans 57 in 5 575 No 569 Electroatreak PC Electric aerobatic plane spans 44 in. noes 05 motor $ 550 No 570 Busy Bee FF Pee Wee-30 plane Ion 02 power spans 30 has either sheet-balsa er built-up surlaces 5 400 No 572 TR-260 PC Sport Scale Aerobatic plane fur 4-stroke 60/65 powee spans 66 5 1100 No 575 ScorpIon 60 PC Pushy aerobatic plane 60 power spans 58/a 50 No 576 Serendipityf ndent EZB record-holder spans 17n/u $ 325 No 578 Schweizer 1-26B PC Quarter-scale Sailplane spans 125 Two plan sheets9 1475 No 581 Gee Bee Model Y PC Golden Age Pacer spurs 72 iA scale 00 power Three plan sheets S 11 75 No 583 Sporewagon PC Padlo-ined spurt PF model spans 54 in. uses 10/15 engine $ 700 No 586 Snapdragon PC Pun-tly/spnrtster 25/30 engines spans 45/e inS 600 No 588 Marlah PC Slupe-Soaring Sailplane spans 41 ones 2 PC channelsS 425 No 593 Taylorcraft PC Sport Scale lightplane builds standard 2-placer clipped-wing air shnw stunter Spans either 70 er 501/a 30/40 twe-strnke 40/40 tour-stroke engine Twn plan sheets no docementatien 9 1000 No 595 Sparrow PC Sportoter 25 engines spans 43 in. . S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas
Edition: Model Aviation - 1989/12
Page Numbers: 116, 117, 118, 119, 120, 121, 122, 123, 124, 199, 200, 202
II V V coun tore Fr FrenchhonthegiLgrn ope ishipsAirfield abontinued NO OCR TEXT litman tendir different al ti Won AMA Hea 118 Model waits wil per hi n bac - U rtl SI drum diam alas ns ellent receni field r mostly sui high winds itninS NO OCR TEXT N mmarka Karsten wai Right Ti magawa chii defen4 WO-t oy e west Germ first chamn noncon al scores sever Spicer k tieri mo ext wher abunda g experienct ore competiti teams g 1991 K teams ha F3B Briton Impior snowing ed sixth ly con er wn e Wrigh As IoII UI-i 7 zzzzzzzi w ELECTRA El NUIIlUIAU EUF airplane air Airtronics 2 GIlder aft4 272-meter team uaed 4 has won Viking Cup F3F Racewhich close Slope Racing gets world champstwo years row Wrights fellow team members Dave Worrall Stew Blanchard Mike Proctor team manager highly experienced pi lots group worked together effectively during contest Wrights technical achievement produc ing first-class plane own demon strates elaborately organized team ef forts turn out all-molded planes nice arent absolutely necessary capture swag Nics experience proof talented individual small group located nearly anywhere US could enough effort eventually become competi tive F3B Asked about secret success Wright put incisively Dedica tion benefit unfamiliar F3B flying lets review works designation F3B assigned category flying FAT Federa tion Aeronautique Internationale Parisbased governing body worldwide sport aviation F stands models 3 indi cates radio controlled B stands thermal soaring Contest flying divided three parts called tasks duration dis tance speed round consists task World Championships six rounds flown six days contestants lowest round dropped five remaining ones counted Sheer stamina certainly plays part fliers success duration task fliers given nine-minute time window called working time accomplish six-minute precision flight 100-point bonus added landing within meter designated spot point per second plus land ing bonus maximum number possi ble points 460 flier loses point second under over six minutes loses five points per meter up 15 ters missing spot Melun duration flown groups eight contestants time Task points normalized group winners total points done dividing individual score winners total points multiplied 1000 example say best score flight 601 plus 95 landing points would work out 359 454 given 1000 task points next best score 450 task points would 450/454 times 1000 991 points Man-onman flight group scoring used var iations weather play little no part scores duration pilots concern doing better other seven fliers Theres no limitation number times plane may launched within working time Some fliers adopt strat egy launching right away allowing selves time land relaunch once twice necessary Others wait clues early launchers try piggy back lift theyve found Often PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT Adjustable side frames free-flow ventilation Extremely light weight added comfort Attractive case included Wraparound frame fits comfortably over prescription glasses Blocks harmful-. Quartz mist ultraviolet radiationcoated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work $1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious injury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Prices include shipping handlingSecretary Treasurer Pikes Peak RC Club LtJPIII See hobby dealer first ___ doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 1-800-842-7233 Cant US Mississippi 6011924-9640 GRUMMAN ALBATROSS HU-16B 81 inchwingspan8tOaqinChesl3IbS Twin 40 2C engine size rglass fuselage wing stab coea Includes wood formed cowls nacelles 825996 plus shipping tax applicable Retractable landing gear kit$14896 90 minute VHS video building flying .. $2486 VISA/MC CONSOLIDATED PBY-5A CATALINA 81 inchwingapanee9sqinchesll lbs Twin 30-40 engine size rglass fuselage um formed clear acetate cockpit blisters formed atyrene cowls nacelles ormed landing gear lsnd operation actable wing floats 823995 plus shipping tax applicable 90 minute VHS video building flying .. *2496 G & P SALES 410 College Ave Angwin CA 94508707-965-3866 II II II II Washable Rugged Cap Sunglasses Flip Up/Down Adjust In/Out Snap On/Off Imprints Available II Please send _____________ caps Ive enclosedI @ $795 plus $2 shipping handlingI Lens Colors 0 Amber 0 Smoke blueI Cap Colors 0 Black 0 white U Yellow El Green El Navy blue 0 Royal blue UJMaroon OGrey ORedI II 0 Please send information about imprinting PLEASE PRINTI NamuI Addreuu cityI Slum ________________________________Zip ________I RETURN WITH CHECK OR MONEY OROER ONLY TO PIN-NIK SALES PO Box 647 Ravenna OH 44266 L December 1989 121 Another Groat Twin Amnhlblan 0 & P SAL ES SWEITZER ENTERPRISES P0 SOX 834HILLS5OSO 05 97123 05055 503540 Sf02 DH 89A Rapj4 se spon SCALE 20 4 SheS 3Ff 05Ff 85865121 50 -6 0*5500 5O5ELI5eT-515 F1B550LA55 cswf5 21 seeas ENGINE5 FINEST IN SCASUPER SCALE PLANS RYANPT22 E Essier IV Is O~ WINOSPAN 4 4 sffeets3 Ft 110FfFibeg1555 Fosoisge lAdd $10 ointoiIl -$125 PLANS $4996FIbfgfOEE p515 COV2IWtOtflO $85 CArALOOS 5flt LG$15 f-VIEWS pu0f0SM*Mu2cS M5MAVL WLAC5 0005555W155 *55 5450 FeeElse WSEFI5EA5 505665 52058 Pit Special COMPLETELY ENCLOSES Valuable Equipment Holds props 18 Accepts cans jugs Most Useful Enclosed Storage wIth Smallest SIze YouII LOVE IT! HAND MADE IN THE USA KITS ASSEMBLED UNITS WITH FUEL PROOF FINISH INSIDE & OUT KIT...54496 FINISHED KT .. $6996 ASSEMBLED. $5996 ASSMiFINISIIED . $7996 Srert4 Engineered Hand Crafted Flight Squport Unds FIRST EVER offered Kh form wth Beautiful Fuel-Proof Finish already applied1 Available Finaihed Unfinshed K Assembled Assembled unha Include gal METAL CAN Units GUARANTEED against defects Attractive Durable Odh 1/4 Ply Corutruction fluflIflpIam. FE wsuIUI Same hh quality design coraitructron attractive durable oalc ply thick black textured foam protect valuable raio equipment Single duel transmitter units PROTEKT kkerflnlshed&asaembled YOUR SINGLE KT ......$2496 IDEUCATEE DUALKff52996 EQUIPMENTSGL Fin &Assem44496 DUAl Fin & Assem$4996 SASE FREE BROCHURE SEE YOUR LOCAL DEALER CALL lB Connnentai JS Fn 5-5 AST OR died money order FAST SHIPPING k NEAT STUFF 45 16th Street V st Bililnas MT S 9102 Nj eight planes wind up same thermal quite sight Since its rare top flier fails get six minutes 95- 100-point land ing few points gained lost dura tion F3Bers aware task could made difficult possible ap proaches continually discussed time could lengthened task could changed percentage slot format second working time mat ters distance task fliers given seven minutes working time four minutes worth flying back forth around 150-meter-long course course defined limitless parallel planes called Base Base B Base sight ing device set up near end row winches perpendicular launch di rection Base B 150 meters upwind Thus fly upwind downwind lap ping course F3B parlance lap length Base B Base B back Again theres no limitation relaunches Assuming enters course least four minutes remaining sevenminute working time pilot gets new four-minute flight time time re launches enters courseie flies past Base direction Base B working time runs out during flying al lowed laps completed point As duration fliers last attempt counts Four planes time flown distance task pilot laps given 1000 points others normalized according number laps completed usual strategy launch right away test air see whether lift stirring air good pi lot continues four-minute flight isnt lands relaunches noting what other three fliers doing Its ten cat-and-mouse game teams locate lift cunningly landing relaunch ing just shake off piggybackers Again objective simply well better others flight group earn 1000 points Usually four planes wind up same part course ob server makes exciting model Glider flying seen anywhere early part four minutes pilots con serve altitude ensure flight will last full time As long lift strong fliers otherwise know theyll have no problem sustaining fourminute duration theyll put heat tensively speeding up planes order complete laps possible Watching like watching powered RC Pylon Racing can readily spot whos flying fastest efficient plane World Champ Nic Wright turned highest number laps contest 26 Round 1 math correct thats averaging almost 37 mph counting extra distance flown turns def initely childs play distance task critical pilots total score Fliers know isnt well managed its easy lose lot points hurry hot pilots side course zipping back forth good air flier whos way off other side sink might get 10 laps 20which equates 500-point loss consider 330-point difference between second tenth place years Champs its obvi ous poor showing distance means fast plunge standings speed task pilots fly time Fliers given five minutes work ing time make single attempt covering four laps 150-meter course fast possible Planes loaded ballast extra speed As distance task models enter course behind Base direc tion Base B flight involves two Base B turns Base Aie down back down back Though refaunches allowed pilot must indicate wishes before entering course fact CD Casaux did permit fly ing onto course whether relaunch called Crafty pilots like take practice dash check trims relaunch flier isnt satisfied launch sens es air improving can easily re launch once twice during working time tactics put strain help ers however Though pilot has two three winches available helpers still have run back last winch line sake safety speed run must done side course opposite winches away contestants spectators special safety line official sits just beyond Base sighting device make sure planes stay far side Crossing safety line automatic zero task best speed time contest turned defending World Cham pion Reinhard Liese Round 1 175sec time earned him 1000 points round other fliers scores de termined dividing individual times 175 multiplying result 1000 example Wrights Round 1 time 201 seconds 175/201 x 1000 87065 Thus Wright lost 129 points Liese task Interestingly Liese again low time Round 4 other rounds won different flier Wright low time Round 2 179 sec top fliers evenly matched can stay within couple seconds speed task winner wont give up points field speed task took three hours run off Since flight conditions constantly changing timing scheduled flight can significantly affect performance fly early morning air heavy devoid lift arent go122 Model Aviation ing match scores flying three hours later especially latter fliers launch boomer organizers careful fair see conditions equalized contestants rearrang ing speed task flight order round similar balancing act required duration distance flight groups Since latter tasks critical factor pitted against flight groups must drawn up randomly also have different pilots round addi tion flight group can have no representative country officials point view dis tance task F3B Champs far complicated administer First turn judge needed plane base Second pilot must know exactly judge indicates base has passed Finally official timer re quired track Gliders four-minute flight time distance task handled very intelligently Melun organizers obviously put lot thought flier assigned letter B C D Pairs judges Bases B also designated B C D pair judges continuous telephone com munication exchanging information tracked Glider sky judges Glider passed base would press button built tele phone handset button connected four types sound makers siren doorbell car horn whistle played over PA system teams flight line could hear teams always lined up Base can call own turns since isnt possible estimate turn Glider way off side other Base B signal crucial Its easy however become confused sometimes happens two three sounds go off almost simultaneously especially theres lot yelling going same time overcome prob lem Melun organizers big sign four divisions labeled B C D Over letter row bright lights lit up four seconds time turn judge pressed button Should team manager unsure whether heard turn signal could glance over sign see whether pilots letter lit final touch four flip card lap count ers enabled everyone constantly monitor fliers progress marked first year turn sign lap counters have used World Champs Faced difficult task further complicated clonelike ap pearance todays Gliders officials did great job high praise re ceived contestants well de served Another interesting touch goodsized city bus organizers used combined mobile command post trans mitter impound worked out very well Regardless winches laid out bus could pulled up close winch line dispense receive transmit ters Sitting drivers seat field marshal good view action job signal start stop work ing times blasting horn keeping up almost uninterrupted patter French English informing us teams up preparation latter warrants explanation since effort speed up contest certain changes standard F3B procedures made rules allow team five min utes preparation time putting out winches prior commencement working time past flight group set out its winches before flight brought afterward Melun teams winches set out dura tion left throughout task speed distance tasks winches set out according staggered schedule As flight group performing task winches team ranked two behind flight order being set up way no time wasted prep aration except start task As category model flying out standing F3B fliers subject whims chance Larry Jolly story case point Larry flown Hans Mueller Ger man maker finished Gliders Quatro team selection finals expected number ship Champs As luck would have Quatro de stroyed its wing broke during speed run practice day Larrys backup ship new Mueller Comet 89T flown few times new T-tail version wellknown Comet series 891 smaller Quatro 110-in wingspan compared Quatros 1205-in span Larry very happy Comet said thermaled beautifully performed well distance also quite competi tive speed Larry placing sixth Round 1 seventh Round 2 bad new model Just Larry seemed have things un der control first slip occurred Round 3 Speed Larry cut Base turn go around once make fast speed time its essential hit turns right probably Com et whipped around faster Quatro Though serious setback Larrys 801 Speed points werent necessar ily fatal since round 2779 points could throwout Larry eighth Round 4 2876 points hanging right second errorand crusherwas Round 5 speed task Larry cut second Base B turn went back around very quickly cost three seconds Worse Comet lost mo mentum doing extra turns slowed down flying speed last lap Larrys 764 Speed points down about COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES RACING WHEELS KLOTZ OIL CARBON FIBER SOLID LINES ALL KINDS OF FUEL TUBING FOUR BRANDS OFGLOWPLUGS HA RD-TO-FIND HARD WA RE OLD TIMER SUPPLIES COILS CONDENSERS NGK & STIlT SPARK PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5& 7LOOP 1/4 RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOY SR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER POWER KITS PROPS TISSUE AND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4385 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $200 FOR INSURANCE ADD $100 STOCK ORDERS SHIPPED WITHIN 24 HRS BUILDING BOARD 24 x 72$58 95 24 X 48 . $4895 mci frt CANADIAN ORDERS ADD 25% Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp tree base straight true work surface will last years years December 1989 123 JUHIIEV VERA GES OVER 9000 PROPS I! IMMEDIATE SHIPMENT ON VISA/MC SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 0495 051S074S & 09S ALL CUS TOM & STOCK PARTS AVAILABLEINDIVIDUALLY LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 4062656529 NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT NEY WASP 4 WRIGHT WHIRLWIND L Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales 1/5th 21/2 1 1/4th 3 ts include assembly instructions Smaller sizes also offered Note units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA -181 PAWNEE STREET SAN MARCOS CALIFORNIA 92069 RONS MODEL BUILDING Radio Controlled Airplanes Other AIrcraft Boats 213 451-0484 Call Write 435 San Vicente Blvd J Santa Monica CA 90402 200 points what woulda coulda shoulda scored Larry pretty despon dent Still whats done tis done Hoping give Round 6 speed everything Larry wound up cutting turn ex actly Round 5 result 750 points another 200 points lost observer neither Base B cuts ap peared miss airplane must have off matter feet Comets smaller size fooled Larry thinking farther away really top pilots judge Base B turns instinctively wait horn means losing too much time earned just 400 speed pointsand thats unrealistic hypothesisLarry would have placed sec ond contest averaged 994 points duration 990 distance 821 speed Another 400 points would have raised speed average 887 within five points what second-place finisher Hoffmann averaged 973 duration 1000 distance Dont label kind analysis wishful thinking second guessing must ana lyze results learn make improve ments changes lesson drawn Larrys misfortune select good design stick over whole two-year World Champs cycle prac tice lot speed runs Seth Dawson excellent contest overall too met nemesis speed task Getting zero crossing safety line Round 2 particularly un fortunate Dawson since scored 1000 both distance duration tasks round reasonably good speed run would have given him good score round probably place higher contest Dawson aver aged 956 Ddration 1000 distance 882 speed including zero Abiding principle mentioned above Dawson flew same Mueller Com et hed used team selection finals wing rather being stock equipped 5D2048 Selig Dawson airfoilan HQ Hans Quabeck section thinned 86% thickness 18% camber Seth says airfoils per formance similar RG-15 sec tion now very popular F3B frater nity outcome new winch rule has make commercially built F3B Glid ers suddenly quite competitive Larry Jollys Seth Dawsons Muellers just two among assortment storebought ships seen Champs Providing youve got money theres no need spend year basement building own world beater can buy Herr Mueller about $450 plus shipping addition Muellers quite few Comets Champs Joris ten Holt Netherlands flew Rowing Impuls third place Czechs offering two beautifully built planes called Jewel Ellipse selling briskly fliers concluding since cant build better planes selves makes sense buy spend time saved practicing Think over Rich Spicers placing dropped observers expected finished 20th 87 contest Achmer did have previous experience Richs Synergy III seemed com petitive plane hed flown two years ago indeed averaged 990 dura tion 823 speed distance task scored just 1000pointer averaged 781 points pulled Rich under American team managed Don Edberg helpers Richard Tiltman Steve Lewis turnabout Steve pi lot 87 team Seth Dawson helper comes averages Champ Nic Wright paragon consistency aver aging 988 duration 1000 distance 948 speed won two rounds second three times placed fourth 2929 points Round 6 After fifth round obvious no could catch Wright manage 3000 points Round 6 Wrights low score 2871 higher what dozen fliers achieved throughout con test Incidentally Round 6 Liese became flier amass 3000 points round Though similar appearance Elec tra C2 flew 87 contest Wrights Electra El actually bit smaller lighter order accommodate weaker new F3B winches span 108 weighing 88 oz down 6 7 oz C2 El among smallest lightest planes champs Lieses 1987 winning Epsilon 120-in span new designs con test showed Epsilon influence Yet trend toward smaller lighter Gliders unmistakable Id estimate average span about 115 Liese flew Epsilon same size weight 95 oz 87 model cost him launch height ex cept breeze down line since new smaller winch motors couldnt get much altitude side back wind conditions prevailed Nic Wrights design philosophy centered around making El lighter duration selecting wing planform speed also good distance task us ing thinned RG- 14A airfoil speed reduced latter 70% thickness 14% camber thinner lower camber designers have used thus far standard RG-14A 85% thick 17% camber Girsbergers 12A 14A 15A airfoils specifically designed modified needed See Soartech #6 page 91 Based Wrights success expect see fliers experimenting thinner sec tions could get away because Continued page 199 124 Model Aviation excitement Team Champi onships over top 17 scorers ad vanced individual finals Whether because nerves windy conditions everyone seemed off slug gish start Round 1 Dean Koger first flameout years put extra pres sure him remaining two rounds crackerjack flier Hanno Prettner won round quite small margin After first round Chip Merle Hyde decided Chip needed little extra speed verticals achieved changing props shortening pipe produce slightly faster flight speed Ap parently successful next two rounds Chip ousted Naruke number four slot actually very little movement finals Hanno Prettner locked up win before last round Wolf gang Matt moved up take away second place Ivan Kristensen Now know results Ill offer few general observations conclusions re garding RC Aerobatics flying Although 1989 has billed year four-cycle engine wasnt top 10 placings five two-cycle- four-cyclepowered airplanes top three first third places won two-cyclepowered models Certainly everyone very impressed power overall performance four-cycles champs doesnt make way go Some fastest airplanes Fentress fourcycle powered some very quiet powerful two-cycles welland frankly dont think placings affected engine flown must tell however die-hard two-cycle flier like myself its difficult impressed size perform ance four-cycles used Japanese team Hanno Prettners sixth world ti tle fifth row What will take beat guy obviously has no plans retirement feel judges overscore him ca pable flying occasional poor flight Prettner smart flier makes very few obvious mistakes flies judges fliers like emerging F3A flying style dominant style seen championships marked fairly high speed large maneuvers flying distance about 160 180 meters Its possible however score equally well flying 150 meters less speed slightly smaller maneu vers judges apparently scored thing between 140 180 meters no downgrade unwritten bonus flying very close top box seemed pretty much disregarded open-minded approach allows pilot style own flying rather re quiring him fit specific mold Its good see approach replacing rig id attitude recent years judges sometimes tended place emphasis maneuvers flown quality should very proud US team Koger Hyde Frackowiak obvi ously worked very hard preparation contest chances cap turing team title looking dim guys showed real gumption opinion team members flew bet ter team selection finals Clearly hard work paid off next F3A World Championships will held Italy 1991 Start practicing RC Soaring WC/Blakeslee Continued page 124 Els relatively low aspect ratio 117 makes chord wide enough depth thick enough sufficient strength addi tion new winches dont require quite much wing strength formerly needed Continued page 200 December 1989 199 Friday set aside practice day gave judges staff day off allowed competitors check out some local sights Louis Levine GP Air craft organized trade show headquar ters hotel Friday night Several manufac turers distributors showed stuff Everyone chance talk Pattern buy Pattern goodies Bill Effinger * says Only Plan n PatteintS sets give yeu escorted desrgns yen want have enleoted beet classic designs irma rev cheese patterns far part Impatient exclusive feature Ducted Fan Navy P40-i SkyrayNavy F4D-1 Skyray 1 onale ength wing spay1% soale 66 levgth 46% 3 lhsonleRlC3hnhannelglCmivgspev4% -bIbs 4-5 Fvr 66-20 66-720 10evch RIC octible lavdivg gnat RCDFl 5SCOF 2 62995 113 Scale Piper Cub J-3 11S wing span ength 2800 elf iv wing area 4 ch RIC 20 -30 cid engines RC3S-2 5 Quarter Scale WWI SE-5A 90% wing span Satin wing area 79 22 engines RCOS-7 92499 SPAD C-XIS 76Ye wing span eat re wing area 13 te3t engines Capahie flyer-it captures imaginatien RCQS-g 5 FOKKER DR-i TRIPLANE 72 wing span saf wingarea.7$tethgeegines SCOSh 6 SOPWITH CAMEL FiN wing atea 11 win 9/C weed & helna cenetruehen new 65 saf ft ef diawisge RCQS-t 1 6 New PlperTrPacerPA22i 2 Orae-Thfrd Scale 116-319 wing span eg wing amy 26 tv 30 cid engines Per4-hchannel 6/C appren 12 lbs 61-tie vveiall engr/i Plyweed/halsa fulselage rereeveable wieg panels steerable wheel designed tui easy greund handling authentic scale flight pnrfvrwance tC3S-3 02995 9111 Effinant Peundina Mereher AMA NPPS Hall ef Parent PS ices ate fet ccrepletn plns sub asuembly S detailed pans liste Meiline inS 62 Sand fee New Breehur chewing yaw Plan Sets let 66 Its refundable utiveu f steam WE TECHNICAL SERVICES 312 Bishop Rd Santa Rose Beach FL 32459 According Wright its high-speed cruis ing capability distance task El t valuable feature observing incredible efficiency Gliders zip back forth distance task high point F3B contest Electra El certainly best Wright also allows El good du ration creditable fastest speed Wright revealed part effort make El lighter materials cost mainly because all-carbon-fiber wing skins carbon sparswas five times higher C2 likes new winch rule unintentional product may fliers spend airplanes Wright makes foam core wings press vacuum bagging uses Graupner MC-18 radio Fu taba S-133 servos ailerons S-135s flaps Both rudder elevator driven pull-pull cable systems subject radios pilots used some type computer system absolute necessity achieve sophisticated mixing presets re quired top-caliber flying pop ular appeared new German-made Multiplex 3030 system followed closely Graupner MC-18 made Ja pan JR US team members used very effective Airtronics Vision sets did Japanese Japanese set car ried Sanwa label Japanese team manager Masaru Hasegawa chief de signer Sanwa great unsolved mysteries F3Br way Japanese dontt better team finished 15th after looking like champs practice new winch rules Itve said quite bit about already topic deserves detailed explanation Until 1988 F3B rules placed no restric tions winch motors limited physical size available Swayed axiom launches highest flies longest farthest fastest teams vied another build more powerful winches all-out winch war Motors reached four five kilo watts 54 67 hp launch heights off 200-meter line length jumped about 250 meters 820 ft low wind con ditions like shooting missiles outer space Leaders sport recognized situation destroying F3B course intended flying launching competition Rolf Decker stepped forward April 1988 FAI/CIAM International Model Aircraft Committee meeting proposal motor/battery combination would limit power less two kilowatts After testing variety starter motors Decker chosen Bosch unit ac cording manufacturer 15 milli ohms internal resistance also se lected medium-sized car battery six milliohms internal resistance Though combination motor/battery sizes would quite capable producing reason ably high launches would also Decker knew much less powerful old motors internal resistances two three milliohms Ohmts law power motor can produce limited its inter nal resistance thus its ability pass cur rent higher resistance lower power committee accepted 15-milliohm motor restriction six-milliohm battery preferring set physical size limits latter time being Decker arranged design tester measured motor internal resistance fully stalled condition stan dardized tester essential competi tors different countries can select lo cally made legal motor Unexpectedly motor Bosch evaluated 15 milliohms resistance tested having 12 milliohms new equipment probably because differences test procedures However Decker asked ClAM representatives revise motor size limitation 12 milliohms refused interpreting request ploy part F3B fliers regain por tion winch power lost 15-milliohm winches performed sur prisingly well Champs ex pected cause greater loss per formance seen average launches about 100 200 ft lower powerful winch es depending windspeed speed times dropped second two positive effect ofthe new winches narrow differential launch height between teams must also emphasized mono filament line used F3B teams has important bearing launch height cause its elasticity heavy fishing line acts like long slingshot Standard launch procedure hold Glider until mo tor nearly stalled order stretch line motor kept full no pulsing way up through dive portion zoom During dive line springs back catapults plane up up away zoom new winches cantt match tre mendous G-force snap bottom dive bigger ones produced incredible zoom heights former F3B con tests fast becoming legend relative weakness new motors appar ent wind blowing side behind launch since unaided winches lack powerie drum speed keep monofilament stretched Most teams use 12- 13mm-dia line 125-lb test no-wind conditions cause its good elasticity wind blowing theyll move up 15mm 200-lb test line fliers also vary drum di ameter depending windspeedperhaps 15-in dia wind 3-in dia wind200 Model Aviation Place Christmas Plans Orders Early Orders plans arrive after De cember 11989 will delivered until after Christmas No 636 Keytwo$575 RC Tn-geared low-wing sportster 20/25 power spans 44 No 637 A-B Shrike$675 FF Competition plane AMA Classes B 15/23 power spans 60 No 638 Owl Racer$225 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S 650 No 598 coronet 150 PC-Assist Old-Timer enlarged 150% spans 72 in. uses 40-size 4-stroke/30-stze 2-stroke S 050 No 601 NIckel PC Sponster /sA engine 3 PC channels Spans 44 in 5 500 No 603 Sparrow Hawk P-30 FF Cnmpetition rubber-power plane won 07 Nuts Spans 30 in $ 225 No 604 Aeronca PC Electric sportoter 05 motor spans 60 in. uses 3 PC Channels 9 800 No 606 Astrostar PP IsA competition plane spans 46/a in. has 317 sg wing area 9 500 No 607 Curtlas Seagull PC giant Scale biplane spans 90 in. ases Quadra/Zenoab puwer Three plan sheets no dsc $ 2400 No608 TopFunCL/uAtraiterspans24ir .. $ 325 No 609 Taperwlng PC IsA Pylon Pacer spans 28 Plan plus parts template sheet$ 600 No 610 Protobype PC Sport biplane spans 48 in. oses 45/2-cycle 00/4-cycle power. 5 650 No 611 cabinalr PP Scalelike rubber-power biplane sport Ilier spars 23 in 5 460 No 612 NVCL Dragontly CL /rA Combat plane all-wood spans 24 reed-caine engine 9 288 No 614 Electrocutor PC Electric sportoter fer 05 direct-drioe motor spans 44/s in 575 No 615 Argosy CL Sport Scale Twenties-era trimotor biplane transpnrt spans 46/u uses 40 twit engines. S 1100 No 616 Raunchy FP Perrymans /eA Nostalgia Gas competition plane spans 40 9 400 No 617 Push-Pull 240 PC Twin-engine spnrtster spans 68 in. uses 4g engines .. $ 1475 No 618 Skynlder CL Sport Scale profile plane spano 38 in. toe 15/25 power $ 475 No 619 KeIth Rider R4 PP Scale Guides Age racer rubber power spurs 18 is 5 300 No 620 GImlet 40 PC Spon/Pattern plane spans 60 fer 40/50 engine 2 sheets 9 1100 No 621 ThunderbIrd 60 CL Big Stunter spans 61/u in. 60-size engine 2 sheets. 150 No 622 QuIck P-SO PP Competition rubber-power P-38-class plane spans 30 in9 325 No 623 Henderson Longater PC Quarter-scale 1933 fiiooer spans 800/a 4-stroke 40/40 engine 3 plan shI. no doc. $ 1650 No 624 Keleher Lark PC Quarter-scale bomebuilt spots 68 80/80 4-stroke power 2 plan sheets no doc 9 1100 No 625 AntoInette CL Scale eralp French monoplane spans 45 uses 25/35 power. S 575 No 626 Sweepee PC Sport/Paftern cunords forward-swept wing spans 64 in. uses 40 power 2 plan sheets S 1300 No 627 ApIary CL Sport/Stunter spans 26 in. uses Con Queen Bee 074 power $ 225 No 628 Prime cut PC Sport/Aerobalic plane spans 90 uses Quadra 35/40-size power Twu plan sberts S 1300 No 629 P-SiB Mustang CL Mostlycurdboard Spnrt Scale cr08 spots 60 uses 30/40 power Two plans sheets no doc $ 1275 No 630 OrigInal Fly Baby PC Old-Timer spans 72 uses 18/25 2-cycle 40 4-cycle power 2 plan sheets $ 1150 No 631 Texas WIldcat CL Profile sport/Stutter bused 1920 plane spans 50 in. 35 power S 500 No 632 P-S1H PP Lubumir Kootnys he-scule Pubber model spans 23 in S 325 No 633 Orca PC Slope Snarer spans 75 uses twisl-wing control Twoch PC OMTP must bane electronic mining $ 6 75 No 634 SB2c Heildiver CL Profile sport/Statler spans 54 Por 35/40 power S 5 75 No 635 Gambler PP Indoor Bostonian robber-power cabin plane spans 15% in $ 2 00 0 O3 0 ISO Col 00 COO 0 03 CC i 0 tfl 03 eQ 0D 00 00c2 0 50 r oiC CO -E:i - 00 - 0 - 03 V 032 C 03 en C 0 o 003 03 2 N G5 03 a-en 0 en en C euen c193262310314326332386447 0 C460465521528531533539554 0003 C en0 en569570572575576578581583 - en en03 ~586588593595598601603604 ZZO606607608609610611612614 en615616617618619620621622 g -623624625626627628629630 631632633634635636637638 so Plan price includes first class postage US delivery Air Mail over 300 miles rs non-US address lease add $250 AIr Mail osta e handlin Ian 03 Make check money order payable US funds drawn US bank ModelAviation AMA 1810 Samuel Morse Dr Reston VA 22090 Please allow 3 6 weeks delivery C 0 03Please print caretullyEnclosed $ 00 CC NAME ____________________________ AMA No __________ STREET n I CITY ______________________ ZIPJ LSTATh Firclerel numbers plans wish order best handlingplease include quests payment some other service yourplans order II II II II II II I______ I___________________ II less conditions Most drums appeared seven nine inches wide teams used external resistance motors selected motor about 10 12 milliohms internal re sistance added three five milliohms externally bring system up legal re sistance Belgians carried ex treme using exactly same winches 1987 adding 12 milliohms external re sistance theory resistor energy heating air instead remain ing inside motor increasing latters resistancean idea especially peppy launches however did lit tle support organizers tested winches prior contest painted electrical connec tions black changes would quickly detected time speed task run Sat urday morning wasnt trace doubt Nic Wright would capture gold last day flying marked jockeying individual places team standings Flying ended 200 pm convivial champagne victory party given Nic British tent Though everyone happy new English Champ US delegation somewhat downhearted because Larry Jollys bad luck 400 pm teams assembled under flags commencement awards ceremony After usual speeches formalities winners called ward Olympic-style platform tt nicely done very moving Saturday evening banquet car ried off typical French panache driven three busloads Melun Paris arriving close sundown dock just below Eiffel Tower Seine River Boarding big glass-topped cruise liner glided up down Seine famous landmarks stretch ing out either side Looming over us awash lights further illuminated huge sign commemorating bicentennial French Revolution Eiffel Tower tt exhilarating experience crowned already memorable final day 1991 F3B World Championships will held near Arnhem Netherlands Any fliers whod like US team better get started right away upcom ing issue Model Aviation Terry Edmonds will present technical review years champs includes lot useful inside scoop Long countrys top ther mal competition fliers Terry new US representative CtAM F3B Sub committee Terry way can counted among growing number finding commercially made Gliders irresistible Like several other savvy pilots champs took opportunity pur chase beautiful Ellipsis ships made Czechoslovakians Christmas plans orders received after December 1 1989 will 202 Model Aviation delivered before Christmas