Aeroscale '82

THE SEVENTH RC Scale World Cham pionships known Aerocale 82 far successful competition history event F6rty-three entrants represented 14 nations first time Stand-Off Scale mod els outnumbered F4C Pre cision class world competition Quality airplanes well flight very similar two classes assembled display work hangar Reno-Stead Airport possible tell apart label cards cases As US two classes have almost completely blended opinion shared mem bers official jury judges generally conceded contestants past World Championships making repeat ap pearances 1982 meet brought 18 new modelers out 25 total Stand-Off class nine new faces Wim Reynders Belgium winner Stand-Off Scale International Contest highest flight score meetover 2900 points Belgiums first appear ance world RC Scale competition Reyn ders DH Mosquito built Brian Taylor plans 80 Model Aviation excitement generated Charlie Chambers ducted-fan Grumman Cougar other plane Large th maneuvers screaming K&B 75commanded attention model built Jet Hangar Hobbies kit AEROSCALE S2 RENO 18 total F4C turnover indication growth RC Scale viewpoint permitted making new friends setting premier Scale event Reno-Stead Airport about 10 miles north city field altitude bit over 5000 feet height combined 850F afternoon temperatures re sponsible some difficultieswith inability climb due poor engine performance reduced lift Don Jehlik hand mix special fuels varying amounts nitromethane up 25% other ingredients help overcome deficiency engine performance Roy Nilsson Sweden used straight FAI fuel nitro DH Tiger Moth Os 60 four-stroke engine models needed greater takeoff speed obtain same climb angle lower altitude Only South Afri can teammembers normally fly Renos altitudewere comfortable about models flight Weather also played part Reno addition altitude wind shifts accompanied gustiness inter spersed dust devils actually damaged models competition stopped several times heavy thunder storms Everyone scrambled cover though always successfully Rene Fouquereaus CAP 20L damaged whirling dust devil snatched platform dropped pavement Alfons Ceulemans crashed P-s 1 Mustang attempting test flight high winds rain mostly weather excel lent first three days almost perfecta few complaints heard about being enough wind last three days mixture nice mornings afternoon storms lat ter noted local modelers highly unusual weather statis tics backed up almost never rains June Reno However Nation al Contest World Championships participants have long ago learned normal weather never prevails during such events spite altitude winning September 1982 81 After waiting 10 years chance 1982 RC Scale World Champion F4C Precision Terry Melleney England deHavilland Moth Minor Terry highest static points Though 5% bonus came through near-perfect flights I Bertil Frilander Finland entered Quarter Scale version KZ VII Lark Danish light plane Finland five nations making first-time appearance events full-scale Focke-WuIf FW44J owned Monty Groves Contest Director ot events part fly-in classics antiques last day model same plane shown Earl Thompson powered 05 6OFSR 2i4-in shaft extension Authors thought Thompsons model accurately detailed models meet Mick Reeves England brought two Spitfiresone classand low air density caused crash Stand-Off-class model stalled top loop demolished itself pavement Mick went F4C Spitfire secure second place Only missed spot landing kept him becoming first contestant RC Scale win World Champion ships twice Other victims alti tude Walter Scherbachs deHavil land Moth Minor stalled out loop Gianni Ghilardis Liberty Sport insufficient altitude com plete three-turn spin Charlie Chambers Grumman Cougar ducted-fan model lifted bit early take off snap-rolled runway Both Moth Minor Cougar repaired flown successfully afterwards real test perseverance face adversity parts both modelers first event judged flown Stand-Off Ten national teams competing As Ottawa two years previously Swedish team came prepared sweep competi tion WW Pfalz Mikael Carlson Zlin 526A5 Kiell-Ake Elofsson Mitsubishi Zero Lars Helmbro light wing loadings example Elofs sons Zlin retracts weighed 65 lb compared numerous F4C entries close 13-lb maximum First place however ap peared closely contested between pair deHavilland Mosquitos Wim Reynders Belgium Sepp Ulber lacher Canada both taking advantage 20% bonus retractable landing gear twin en ginesin addition having some highest static scores Both built Brian Taylor plans Sepp needed solve gear retraction problems homemade mechanism final flight didnt approach score required overtake Reynders although model functioned hitch Static scores Stand-Off event 82 Model Aviation Highest placing American F4C Precision event George Roses Curtiss Hawk P-6E consistently good flightsbut low static score compared 2nd place 1980 Fifth place F4C class taken Gerry Dale Canada scratch-built Pius S-2A using Webra 61 Champion engine rear carburetor Model finished K&B primer color applied over Coverite Pitts 2-in-scale 10% flight bonus models quite easily flown speeds reasonably approached scale per formancebut too slow speed during low-level maneuvers could disastrous Mikael Carlson Team Sweden youngest competitor age 22 Lightweight Pfalz DXII Webra 60 took second Stand-Off Sopwith Pup South Africa Paddy Martin flew several WW types Biplanes popular due FAIs bonus system Stand-Off champ Ottawa Lars Heimbro Sweden used back-up Zero Reno because NA Harvard damaged re cently Zeros flight quiet slow closely bunched near topwith spread 125 points between 1st 6th places Reeves ill-fated Spitfire highest score could have formidable contender succumbed altitude sickness ings Italian team three models Amen- Placings Stand-Off class reflec can home-built airplanes second ted bonus systems affectthe winthe Swedish team quality shown ner model 20% bonus high static scores final stand- its design features second place September 198283 Sepp Uiberlacher ot last ily chance catch Reynders could make near-perfect score Mos quito weighed 10 lb OS 25F5R engines homemade retracts Id Champ Jean Rousseau juarrer Scale model needed higi iu uu competitive British Detlef Draheim W Germany left flew well under difficult con ditions Bolkow BO 207 Bachstelze uses Webra Speed 60 belt reduction 15-8 prop Balsa fiberglass construction Stits Playboy Carlo Bergamasclji Italy Italians brought three American home-built light planes finished second team Phil Sibilles Mk IX version three Spitfires entered Reno US team finished third Stand-Off event FAI RC STAND-OFF SCALE INTERNATIONAL CONTEST RESULTS PH Name 1 W Reynders 2 MCarlson 3 C Mapelli 4 S Uiberlacher 5 KA Elofsson 6 L Helmbro 7 C Tacie 8 J Ehiers 9 GSmith 10 C Bergamaschi 11 C Hambers 12 A Van Wyk 13 MReeves 14 P Martin 15 G Watson 16 G Ghilardi 17 H Christophersen 18 P Sibille 19 R Batten 20 B Borland 21 D Paquette 22 LRG Ackroyd 23 R Gareau 24 W Schubach 25 A Ceulemans Nation Belgium Sweden Italy Canada Sweden Sweden USA S Africa England Italy USA S Africa England S Africa Australia Italy Denmark USA Australia N Zealand Canada N Zealand Canada Australia Belgium Team Results 1 Sweden 154166 6 Australia 110745 Model DH Mosquito NF 30 Pfalz DXII Baby Ace DH Mosquito Mk II Zlin Akrobat Zero Spezia Tu Holer Bucker Jungmeister Pomilia Stits Playboy Grumman Cougar Spinks Akromaster Spitfire Mk Vb Sopwith Pup Christen Eagle Liberty Sport PBY 5A Spitfire Mk IX Ryan STM Miles M2 Hawk Hawker Sea Fury DH 82 Tiger Moth DH Tiger Moth 82A Moth Minor P51 D 2 Italy 138624 7 England 88611 Scale 1/9 1/6 1/4 1/9 1/6 1751 1/4 1/4 1/7 1/4 1851 1/54 1/6 1/5 1/48 1/55 1/15 1/6 1/6 1/6 1551 1/6 1/6 1/6 1/7 Weight 50 kg 32 kg 48 kg 55 kg 31 kg 39 kg 47 kg 49 kg 6h lb 36 kg 43 kg 37 kg 5 kg 495 kg 30 kg 44 kg 45 kg 46 kg 47 kg 32 kg 10 lb 39 kg 225 kg 34 kg 40 kg Engine 2OS 25 Webra OS FS 2OS 25 OS 50 Veco 61 OS 60 Webra LS OS 40 Webra Turbex DF 05 6OFSR HP61 HP 61 05 60 Rossi 205 21 HB 05 60 OS 60 HP 61 0S 60 K&B 40 ST 61 Merco 3 USA 13242 8 New Zealand 73398 Static Points 2650 2650 2545 2670 27425 26225 2695 2495 23475 2385 25725 2175 27775 1930 24825 2515 1985 1640 2120 2085 15925 1730 1250 1520 20175 Bonus Percent 20 15 5 20 10 10 5 10 15 5 10 5 10 15 10 10 20 10 5 5 10 15 10 5 10 4 South Africa 130389 9 Belgium 55528 BestTotal FlightPoints 2902855528 25995249 2656552015 25205190 2389251317 2413450359 2087447824 2270447654 2389747372 2262746477 1905244777 2043342183 1346441239 2125240552 1531240137 1498240132 2005239902 2341 939819 1838539585 1810238952 2140637331 1714634446 1884331343 1582331023 5 Canada 120574 10 Denmark 39902 model qualified 15% third fourth place models got 10% extra indicates FAT bonus system complexity has effect promoting use biplanes multi-engine types landing gear retraction Cliff Tacie highest static scoring among US Stand-Off team members new Spezio Tu-Holer really Precision Scale quality expected have high score En gine cooling problems seriously limited flights due engines inability hold steady needle valve settings 25% nitro fuel Phil Sibiles venerable F4C RC PRECISION SCALE WORLD CHAMPIONSHIPS RESULTS P1Name 1T Melleney 2MReeves 3J Rousseau 4MJonckheere 5G Dale 6D Draheim 7J Mayer 8R Nilsson 9T Manley 10G Rose 11JSwift 12K Qetiker 13H Reger 14A Depaux 15R Fouquereau 16EThompson 17B Wischer 18B Frilander Team Results Nation England England France Canada Canada W Germ W Germ Sweden England USA Canada Switzer W Germ France France USA USA Finland Model Moth Minor Spitfire IX CAP 20 Stearman 4GM Pitts S-2A BO 207 Bachstelze Druine Turbulent DH 82 Tiger Moth Blackburn Shark Curtiss P-6E Hawk RV3 Bucker Jungmeister Zlin 126 CAP 21 CAP 20L Focke-WuIf 44J Ryan SCW KZ VII 1 England 150395 5 USA 103958 Scale 1/548 1/6 1/43 1/6 1/48 1/5 1/4 1/44 1/6 1/6 1/4 1/4 1/5 1/4 1/4 1/575 1/56 1/5 Weight 10 lb 50 kg 55 kg 45 kg 42 kg 59 kg 59 kg 56 60 kg 52 kg 50 kg 59 kg 57 kg 55 kg 55 kg 52 kg 41 kg 52 kg 2 Canada 137155 6 Sweden 44704 Engine HP HP Webra Webra Speed Webra Webra HB 0S 604S Webra ST Kraft HP Webra Os 0S Belt 0S ST 0S 60 Static Points 2836 2618 2249 2165 2229 2070 23845 2742 2358 1845 1910 1095 1229 18905 1805 2244 23385 1465 Bonus Percent 5 10 5 10 10 5 5 15 10 10 5 10 5 5 5 10 5 5 3 W Germany 127731 7 Switzerland 3845 BestTotal FlightPoints 2506353423 2621352393 2575648246 2614747797 2440946699 2599846698 220545895 1728444704 2099944579 2506943519 2356242662 27503845 2284835138 1612835033 1351331563 874531185 586929254 979624446 4 France 114842 8 Finland 24446 Spitfire used 1981 Nats qualifi cations consistent US entries flight scoring its low static score prevented high placement overall Charlie Chambers Grumman Cougar sentimental favorite Stand-Off class because first ducted-fan model appear international competition Damaged its first flight attempt all-night repair session followed early morning test flight cool air prepared Charlie prove ducted-fan model could flown high altitude Cheers crowd greeted its first successful take off K&B 75 engine Turbax ducted-fan unit turned up same 23000 rpm lower altitude using 25% nitro fuel thrust definitely less Charlies new Cougar weighs two pounds less model used 1981 Nats yet retains operating featuressuch Rhom re tracts dive brakes flaps navigation lights An unusual model Consoli dated PBY-5A Catalina Herb Christo fersen Denmark small twin 1/5th scale used pair 05 21 engines homemade retracts well retractable wing tip floats tricycle-geared model meet Like European en tries mufflers kept exhaust noise down whisper truly noisy models seemed Amer icans flying sites premium densely-populated nations effort reduce noise pollution reality examined some quiet mufflers found size much greater custom-made fit inshe engine cowls volume al same fuel tank particular size engine F4C Precision class win ning model familiar us first seen Terry Melleneys deHavilland Moth Minor RC Scale World Championships 1972 Toulouse France placed second Terry patiently waited 10 years reach first place premier event air plane appeared identical respect nothing added oyer years Weighing 10 lb having large wing area floats realistically silently through maneuvers reason ably slow speed model features folding wings engine cowl hinged top expose scale engine mounts oversized muffler HP 60 engine Terrys first-place win remarkable because flight bonus 5% conventional land ing gear Mick Reeves brought England same two Spitfires seen Ottawa 1980 F4C Spitfire Mk IX out standing example modeling ingenui ty HP 60 engine cooled through very small air inlet scale position underside cowl using ducting carry air upward Mick has 20-oz flywheel enclosed within spinnerfor balance aid re ducing idle speed engine never dies sudden opening throttle extra-large muffler brought engine noise down point near equal prop noise modeler heard comment really too quietin comparison fullsize plane little noisy CAP 20 Jean Rousseau win ner Ottawa returned place third Reno six Quarter Scale airplanes meet including other two French entries CAP 20L Rene Fouquereau CAP 21 Alain DePaux Both latter re duction belt drives troubled engine starting difficulties World Championships F4C class attracted seven biplanes seeking capitalize bonus awarded type Best advantage taken Swe dens Roy Nilsson DH Tiger Moth received 15% undercambered-airfoil biplane tail wheel Fourth fifth places taken biplane types US teams best flights made George Roses Curtiss Hawk P-6E same model come within half-point winning World Championships Ottawa two years pre viously other two US entries Earl Thompsons Focke-WuIf FW44-J Continued page 162 86 Model Aviation Highest placing American Stand-UT event UIITT acie Spezio Tu-Holer Actually Precision model 3rd static Druine Turbulent Josiiver ousea ar gine Finished polyurethane paint over Coverite weignec ij rn Konrad Oetiker Switzerland lowest static highest flight scores Bucker Jungmeister F4C Precision class Mick Reeves England spot landing short again winning World Championships innovetive Spitfire IX always near top competition Consistently smooth quiet flight Third place Stand-Off second high est flight score meet went Carlo Mapelli Italy Quarter Scale Corben Baby Ace 05 6OFSR engine swung 16-4 prop cut down 15/iin ADVERTISERS INDEX AMA Membership ASAE Ace RC Inc Aerolite Products Aeromarine Enterprises Aerotrend Products Air Design Airtronics side Front Cover ha Americas Hobby Center Andrews Aircraft Model Co Applied Design Corp BK ProductsBalsa USA Richard G Barron Bavarian Precision Products Behrens Plan Service Byron Originals Brownsell Flag & Decal Buckeye Balsa CB Associates California Model imports CarollnaTaffinder Charlies RC Goodies Chicago Expo Circus Hobbies George Clapp Consumers Hobby Corp Contempo Enterprises Coverite Cox Hobbies Jim Crocket Replicas DA Enterprises D & D Engineering DG Proiucts DGM industries DaCa Model Products Davey Systems Corp Jim Denaro Model Products Du-Bro Products Dynathrust Props Eastcraft Specialty Products Explorer Enterprises FAI Model Supply FHS Supply Flightilne Shirts ADVERTISERS INDEX 87 160 116 14 129 137 128 155 75 134 125 138 21 136 159 121 141 131 139 153 157 130 124 154 142-148 . 124 118-119 41 121 84-85 134 156 157 152 128 128 138 149 4 20 14 129 124 157 136 153 ADVERTISERS INDEX Flyline Models159 Fourmost Products116 Fox Mfg Co37 Full Command Systems156 Fults Tooling136 Futaba Corp America75 GTModels159 Gator RC Products160 Gemini Models Inc160 Carl Goldberg Models1 Gorham Model Products15 Great Lakes Model & Mold Co124 Great Planes Model Mfg Co150-151 Grish Brothers130 Hardware Systems Hayes Products DR Higgins Associates Hobby Barn Hobby Capitol RC Holby Hideaway Hobby Horn Hobby Lobby Hobby RadIo Shop Hobby Shack Horizon Model Crafts Homer Sales Indian City RC Club Indy RC Sales J-5 Enterprises K & B Mfg Co K & S Engineering Kin Craft Kraft RC Electronics Kraft Systems Kustom Kraftsmanship Left Bank RC Distributors Leisure Electronics Lltco Systems Lone Star Models MACS Products Majestic Models McDaniel RC Service Jim Messers Quality Model Products Midwest Products 120 39 113 114-115 10 159 159 6-9 160 139 . 149 78 117 122-123 161 158 137 157 117 - 157 158 19 131 156 154 125 137 133 ADVERTISERS INDEX Miniature Aircraft Supply117 Model Engineering Norwalk152 Model Merchant158 Model Rectifier Corp side Back Cover Mutchiers Hobbies126-127 Jerry Nelson & Co137 Nor-Cal Avionic140 Peck-Polymers128 PIca Products31 Dave Platt Models20 Plaza Hobby Craft162 Prestige Models113 Proctor Enterprises131 Prop Shop154 RAC Products137 RF Enterprises139 RJL IndustrieS134 RLF Products132 Repla-Tech International130 Rolley Model Products131 Roush Mfg120 Saf-Filte Models130 Sailplane Factory140 Satellite City163 Sheldons Hobby Shop125 Sig Mfg Co13 Bob Smith RC Aircraft132 Spring Air14 Sterling Models121 Sullivan Products47 Tatone Products78 Technopower Ii161 Top Flite Models2 Tower Hobbles135 Twinn-K Inc132 WE Technical services134 138 Waterlines Inc128 Williams Brothers132 Windsor Propeller Co140 World EnginesBack Cover CA Zaic Co129 Zenith Aviation Books5 NIck Ziroll Models130 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX often twists fuselage enough remove washin washout wing left thrust added thrust helps pull models nose around tighter left circle tends offset turn lost twisting motor stick As consequence often am able use much higher power models some other fliers might note tends out models pretty heavy need power What about winding motors Since rm about out space lets reserve next time lot say about topic very Dwayne Stephens 7253 Red Coat Drive Hamilton OH 45011 513-863-7325 important understand rubber works Bud Tenny PO Box 545 Richardson TX 75080 Scale WC/Wischers Continued page 86 Bob Wischers Ryan SCW both damaged crashes resulted radio problems An extremely sensitive scale used Bill Curtis 2473 E State Street Hermitage PA 16148 412 342-5740 day accurately measure weight model within 1/1000 gram Two planes German team found over 6kg maximum builders found weight could reduced removal such unnecessary items batteries lighting system would have produced insignificant benefit scoring Whereas static scores Stand-Off tightly grouped near top F4C 500-point spread between first sixth places sheer ingenuity design quali ty German team outstanding Detlef Draheims 1/5-scale Bolkow BO 207 Bachstelze used belt-reduction drive originated Maximizer reduction ratio changed 18 1 50 Webra Speed 60 could swing 16-8 prop Detlef made ow oil-and-air shock struts also separate servo trim stabilizer leading edge place elevator trim Josef Mayers 1/3-scale Druine Turbu lent another inconspicuous models awarded high static score wheel brakes operated individually combination depend ing upon rudder position Two full-scale airplanes being de veloped Reno-Stead Airport both pusher-propeller airplanes Lear-Fan advanced-technology project using two turbines drive single carbon-fibre prop second writing advertisers mention read about Model Aviation 162 Model Aviation Eastern US Helicopter Championship Modified NRCHA Format September 25-26 Sharon/Greenville PA Home 19741975 1976&1977 NR CHA NA TS Task competition beginner novice intermediate & expert Includes some aerobatics Preregistration thru September 17-$ 1000 September 8 thru competltion-$ 1500 registration forms information contact FULL*SIZE*PLANS 378Mr Spook Ill$500 RC Rugged craft sport flying Sport Pylon Novice/ Sportsman Aerobatics Use 4-ch 25-40 power No 379Monoboom AA$375 CL Large light superperforming Y2A Combat ship No 380Witch Hawk 500$375 FF Class NB Gas 15-23 power Nats winner No 381RB-59 Gladiator$725 RC Eye-catching tn-gear 1 5-power sportster Czechoslovakia uses 3-ch No 131Gee Bee Model Y 40-powered RC stand-off scale great old-time racers$500 No 168Simitar RC spectacolar flyisg wing t 5 nose-moanted tractor$300 No 225Ole Reliable RC 70 version 38 old-timer REM controls t 9- 25$425 No 239Blue Birds RC Ken Willards formation plane 4-ch tO$375 No 253Mitchell B-25 RC 4-ft /rA twin Ace foam panels Well- behaved$350 No 259chambermaid FF Bill Henno superlative rabber-powred scale winner$200 No 260Waco custom cabinRC Don Sralls scaler t 5-20 REM controls$400 No 262crashmaster CL Crash-proof trainer 2 sizest5-30 35-40$125 No 291cap 20 40-powered scale RC French acrobatic plane Low wing tail dragger 2 sheets $750 No 299GeeBee Sr Sportster RC -scale Haffke 91 power Prototype spas 30 ft 2 sheets $1175 No 302Mini F-16 RC Sarpolss 049 dacted fan sport tier 2-ch Balsa wings tail fsse strscture$275 No 307Pegasus RC Watsons giant super sailplane features flaps spoilers T-tail t 66 wingspan.$675 No 3101930 Fleet Biplane RC Sport Scale 35-40 4-ch Wingspan 56 t16 scale Two sheets$625 No 314Drake II RC Ken Willards flying boat 3-oh. 15-power Fly land removable gear$375 No 317Schweizer TG3-& RC Sport Scale Sailplane Jack Hiner has it-ft span 3-yb Two sheets$1200 No 323Super Voodoo CL Fast Combat John J0 features built-up wing fast construction wins$300 No 325commodore RCTenaco-class Old-Timer Oslan apdates Shereshaws classic 3-ch for29-powet 2 sh$1000 No 326Taylor cub RC Don Srclrs Schoolyard-Scale 049s 2-3 ch Spans 50 in$350 No 329Bristol5coutD RClltzschsPrecision-Scale-sizespan73 bipefor9t powet4 sheets$1650 No 332Zephyr RC Small 2-ch glider hand-laanch tow thermal slope soaring$200 No 335Sopwith Dolphin FF Bill Noonans Jumbo-Rubber scale great WW I-vintage biplane$175 No 337Super Akin-i chips RC Scale-like stunter 5-oh t smoke valve 40-power 2 sheets $700 No 338Rearwin Jr RC Dcc Mathews Sport Scale 4-ch 40-power Monoplane$525 No 340Mossie Stunner CL Twin 35-powered semi-scale based famous WW II Mosquito bomber$400 No 341Brown 8-2 RC Scale-like sport flier 4-oh t9-29-power Race Ovickee hot 25$500 No 343Wasp VI FF Mike Stoys Nats-winning Outdoor HLG$100 No 345La Jolita CLAA Scale Racer Class II also sport Mouse$100 No 347Space Shuttle RC Sport-Scale glider 2-ch launch mother plane$175 No 348Onestep RC Trainer has very forgiving tying qualities 3-ok 1 0-25 power$425 No 350Electric Spitfire RC Fun-Scale 15/25 electric 20-30 glow 3-oh spans 6 ft$750 No 353Eccitaniow CL Sleek 46-powered super-Stunter contest-proven$400 No 354Merlyn RC Giant tSS-in span Sailplane uses 3 RC channels$750 No 385Sentos-Dumontl4-bis RC Sport-Scale canard bipe fort 5-power 3-oh spans SB v2 sheets$575 No 356Maule Lunar Rocket RC -Scale spans 925 S-oh flaps t 2 engine$1200 No 358Pieces FF Indoor Easy B Rubber-power contest-winver W Van Gorder$100 No 359Black Widow RC Fcc-Scale twin two iOn 4-oh RC spans 58 WW II night fighter$675 No 360Dragon CL Slow Combat winner has foam wing uses 36-power$500 No 361Electric count Boy FF Record-holding dnration craft 02 motor$200 No 362Supercat RC Half-A Pylon Racer/sport tier Aileron elevator control Foam wing $200 No 363Tiger Rag CL Sport Stunter biplane 36-power$400 No 364 Neutron Star RC SleeK 40-size Pattern flierwith tail draggerretructs enclosed pipe bsilt-up $525 No 365 Seamaster RCWillards 40-size flying boatfor4-oh Strap-on gear makes landplanel 2 sheets $1100 No 366Truant FF Pert all-balsa beginners sport model 020-power$225 No 367P-39 Airacobra CL Sport-Scale uses water-cooled 45 engine mounted aft entension shaft$1275 No 368Space Shuttle II RC Larger improved version Hun glider 3-oh$550 No 369Super Star CL Semi-scale Stunter 35-power Easy build has contest-proven capability$550 No 370CAP-21 ftC Giant Scale French acrobatic craft spans 7 ft Osadra power 2 sheets $1400 No 371Strato-Streak RC Old-Timer version GarumCs famous 41 FF design power 2-oh$500 No 372Neighviow RC Low-wing fri-gear sportoter power 4-oh$500 No 373cassust II CL Profile Stunter 35 power Flaps$475 No 374Marissa FF Rubber-powered sportoter iv Golden Age tradition$300 No 375Snapshot Twin RC Worhhome utility/sport ship fortwin 35-40475 oh Foam wings lifts t 2 lb 2 shts$1100 No 376Auroroa RC Sport/Acrobatic flier 049-10 power uses 2 3-oh$350 No 377 Wingmaster CL Sport-Stunter Profile fuselage sheet wings in/taps $200 eg... 999 @@O 0@ Circle numbers planss wish order CC 131168 225 239 253 259 260 262 269 278 282 C 285 291299 302 307 310 314 317 323 325 326 328 332 335 337 338 340 341343 345 347 348 350353354355 364365366367 356358359360 368369370371 375 376 377 378 379 380 381 C C C e NAME Please print carefully Enclosed $ plane OMAC canard design using conventional engine Both given test flights present added interest excite ment Reno experience Reno RC Club headed Phil Abbinanti deserves credit having done operational tasks necessary successful inter national contest along Hill Country Flyers headed Ken Wardrip Other key figures included Betty Suzi Stream California have right proud part played international jury contest consisted Dennis Thumpston chair man England Helmuth Ziegler Switzerland John Grigg USA Judges Stand-Off event Roy Yates chief England Carl Mueller Canada Whitey Pritchard USA Pat Ray USA Steve Gray Canada Judges F4C World Championships Tony Aarts chief Netherlands George Buso USA Eric Coates England Andy Sheber USA Paul Jones Canada Contest Direc tor Aerocale 82 Monty Groves able assistance Con test Manager Patricia Groves Highly praised too Ken Barbara Wardrip operated fault less computer scoring system during contest contest adminis tration team including several AMA HQ staff produced smooth functioning contest despite hind-the-scenes problems Handling problems Under wood team Bob Rae Cathy received standing ovation closing banquet efforts name hospitality Highlighting Scale World Cham pionships simple dramatic opening awards ceremonies field featuring raising lowering flags playing national thems Adding spectacular backdrop finale full-scale antique air craft flown occasion includ ing Ford Tn-Motor two biplanes Swedish markings also represented contest model counterparts Overall weather good des pite some periods problems 361362363contest management highly praised 372373374the food plentiful lodging Cwas excellent great World CChampionships winners econsidered deserving eNot much could asked ex gpected STREET 0 CITY STATEZIP _________ Price includBs first-class postage Send chock money order payable Mode/Aviation AMA 815 Fifteenth St NW Washington Dc 20005 icCc9*t/Y*4/. * ty- ,090 164 Model Aviation 0 C C C C C C C 0 0 Full-size Plan List Available complete listing plans previously published magazine through No 364 may obtained free charge writing enclose stamped pre-addressed businesssize envelop Model Aviation 815 Fit teenth 5t NW Washington DC 20005

THE SEVENTH RC Scale World Cham pionships known Aerocale 82 far successful competition history event F6rty-three entrants represented 14 nations first time Stand-Off Scale mod els outnumbered F4C Pre cision class world competition Quality airplanes well flight very similar two classes assembled display work hangar Reno-Stead Airport possible tell apart label cards cases As US two classes have almost completely blended opinion shared mem bers official jury judges generally conceded contestants past World Championships making repeat ap pearances 1982 meet brought 18 new modelers out 25 total Stand-Off class nine new faces Wim Reynders Belgium winner Stand-Off Scale International Contest highest flight score meetover 2900 points Belgiums first appear ance world RC Scale competition Reyn ders DH Mosquito built Brian Taylor plans 80 Model Aviation excitement generated Charlie Chambers ducted-fan Grumman Cougar other plane Large th maneuvers screaming K&B 75commanded attention model built Jet Hangar Hobbies kit AEROSCALE S2 RENO 18 total F4C turnover indication growth RC Scale viewpoint permitted making new friends setting premier Scale event Reno-Stead Airport about 10 miles north city field altitude bit over 5000 feet height combined 850F afternoon temperatures re sponsible some difficultieswith inability climb due poor engine performance reduced lift Don Jehlik hand mix special fuels varying amounts nitromethane up 25% other ingredients help overcome deficiency engine performance Roy Nilsson Sweden used straight FAI fuel nitro DH Tiger Moth Os 60 four-stroke engine models needed greater takeoff speed obtain same climb angle lower altitude Only South Afri can teammembers normally fly Renos altitudewere comfortable about models flight Weather also played part Reno addition altitude wind shifts accompanied gustiness inter spersed dust devils actually damaged models competition stopped several times heavy thunder storms Everyone scrambled cover though always successfully Rene Fouquereaus CAP 20L damaged whirling dust devil snatched platform dropped pavement Alfons Ceulemans crashed P-s 1 Mustang attempting test flight high winds rain mostly weather excel lent first three days almost perfecta few complaints heard about being enough wind last three days mixture nice mornings afternoon storms lat ter noted local modelers highly unusual weather statis tics backed up almost never rains June Reno However Nation al Contest World Championships participants have long ago learned normal weather never prevails during such events spite altitude winning September 1982 81 After waiting 10 years chance 1982 RC Scale World Champion F4C Precision Terry Melleney England deHavilland Moth Minor Terry highest static points Though 5% bonus came through near-perfect flights I Bertil Frilander Finland entered Quarter Scale version KZ VII Lark Danish light plane Finland five nations making first-time appearance events full-scale Focke-WuIf FW44J owned Monty Groves Contest Director ot events part fly-in classics antiques last day model same plane shown Earl Thompson powered 05 6OFSR 2i4-in shaft extension Authors thought Thompsons model accurately detailed models meet Mick Reeves England brought two Spitfiresone classand low air density caused crash Stand-Off-class model stalled top loop demolished itself pavement Mick went F4C Spitfire secure second place Only missed spot landing kept him becoming first contestant RC Scale win World Champion ships twice Other victims alti tude Walter Scherbachs deHavil land Moth Minor stalled out loop Gianni Ghilardis Liberty Sport insufficient altitude com plete three-turn spin Charlie Chambers Grumman Cougar ducted-fan model lifted bit early take off snap-rolled runway Both Moth Minor Cougar repaired flown successfully afterwards real test perseverance face adversity parts both modelers first event judged flown Stand-Off Ten national teams competing As Ottawa two years previously Swedish team came prepared sweep competi tion WW Pfalz Mikael Carlson Zlin 526A5 Kiell-Ake Elofsson Mitsubishi Zero Lars Helmbro light wing loadings example Elofs sons Zlin retracts weighed 65 lb compared numerous F4C entries close 13-lb maximum First place however ap peared closely contested between pair deHavilland Mosquitos Wim Reynders Belgium Sepp Ulber lacher Canada both taking advantage 20% bonus retractable landing gear twin en ginesin addition having some highest static scores Both built Brian Taylor plans Sepp needed solve gear retraction problems homemade mechanism final flight didnt approach score required overtake Reynders although model functioned hitch Static scores Stand-Off event 82 Model Aviation Highest placing American F4C Precision event George Roses Curtiss Hawk P-6E consistently good flightsbut low static score compared 2nd place 1980 Fifth place F4C class taken Gerry Dale Canada scratch-built Pius S-2A using Webra 61 Champion engine rear carburetor Model finished K&B primer color applied over Coverite Pitts 2-in-scale 10% flight bonus models quite easily flown speeds reasonably approached scale per formancebut too slow speed during low-level maneuvers could disastrous Mikael Carlson Team Sweden youngest competitor age 22 Lightweight Pfalz DXII Webra 60 took second Stand-Off Sopwith Pup South Africa Paddy Martin flew several WW types Biplanes popular due FAIs bonus system Stand-Off champ Ottawa Lars Heimbro Sweden used back-up Zero Reno because NA Harvard damaged re cently Zeros flight quiet slow closely bunched near topwith spread 125 points between 1st 6th places Reeves ill-fated Spitfire highest score could have formidable contender succumbed altitude sickness ings Italian team three models Amen- Placings Stand-Off class reflec can home-built airplanes second ted bonus systems affectthe winthe Swedish team quality shown ner model 20% bonus high static scores final stand- its design features second place September 198283 Sepp Uiberlacher ot last ily chance catch Reynders could make near-perfect score Mos quito weighed 10 lb OS 25F5R engines homemade retracts Id Champ Jean Rousseau juarrer Scale model needed higi iu uu competitive British Detlef Draheim W Germany left flew well under difficult con ditions Bolkow BO 207 Bachstelze uses Webra Speed 60 belt reduction 15-8 prop Balsa fiberglass construction Stits Playboy Carlo Bergamasclji Italy Italians brought three American home-built light planes finished second team Phil Sibilles Mk IX version three Spitfires entered Reno US team finished third Stand-Off event FAI RC STAND-OFF SCALE INTERNATIONAL CONTEST RESULTS PH Name 1 W Reynders 2 MCarlson 3 C Mapelli 4 S Uiberlacher 5 KA Elofsson 6 L Helmbro 7 C Tacie 8 J Ehiers 9 GSmith 10 C Bergamaschi 11 C Hambers 12 A Van Wyk 13 MReeves 14 P Martin 15 G Watson 16 G Ghilardi 17 H Christophersen 18 P Sibille 19 R Batten 20 B Borland 21 D Paquette 22 LRG Ackroyd 23 R Gareau 24 W Schubach 25 A Ceulemans Nation Belgium Sweden Italy Canada Sweden Sweden USA S Africa England Italy USA S Africa England S Africa Australia Italy Denmark USA Australia N Zealand Canada N Zealand Canada Australia Belgium Team Results 1 Sweden 154166 6 Australia 110745 Model DH Mosquito NF 30 Pfalz DXII Baby Ace DH Mosquito Mk II Zlin Akrobat Zero Spezia Tu Holer Bucker Jungmeister Pomilia Stits Playboy Grumman Cougar Spinks Akromaster Spitfire Mk Vb Sopwith Pup Christen Eagle Liberty Sport PBY 5A Spitfire Mk IX Ryan STM Miles M2 Hawk Hawker Sea Fury DH 82 Tiger Moth DH Tiger Moth 82A Moth Minor P51 D 2 Italy 138624 7 England 88611 Scale 1/9 1/6 1/4 1/9 1/6 1751 1/4 1/4 1/7 1/4 1851 1/54 1/6 1/5 1/48 1/55 1/15 1/6 1/6 1/6 1551 1/6 1/6 1/6 1/7 Weight 50 kg 32 kg 48 kg 55 kg 31 kg 39 kg 47 kg 49 kg 6h lb 36 kg 43 kg 37 kg 5 kg 495 kg 30 kg 44 kg 45 kg 46 kg 47 kg 32 kg 10 lb 39 kg 225 kg 34 kg 40 kg Engine 2OS 25 Webra OS FS 2OS 25 OS 50 Veco 61 OS 60 Webra LS OS 40 Webra Turbex DF 05 6OFSR HP61 HP 61 05 60 Rossi 205 21 HB 05 60 OS 60 HP 61 0S 60 K&B 40 ST 61 Merco 3 USA 13242 8 New Zealand 73398 Static Points 2650 2650 2545 2670 27425 26225 2695 2495 23475 2385 25725 2175 27775 1930 24825 2515 1985 1640 2120 2085 15925 1730 1250 1520 20175 Bonus Percent 20 15 5 20 10 10 5 10 15 5 10 5 10 15 10 10 20 10 5 5 10 15 10 5 10 4 South Africa 130389 9 Belgium 55528 BestTotal FlightPoints 2902855528 25995249 2656552015 25205190 2389251317 2413450359 2087447824 2270447654 2389747372 2262746477 1905244777 2043342183 1346441239 2125240552 1531240137 1498240132 2005239902 2341 939819 1838539585 1810238952 2140637331 1714634446 1884331343 1582331023 5 Canada 120574 10 Denmark 39902 model qualified 15% third fourth place models got 10% extra indicates FAT bonus system complexity has effect promoting use biplanes multi-engine types landing gear retraction Cliff Tacie highest static scoring among US Stand-Off team members new Spezio Tu-Holer really Precision Scale quality expected have high score En gine cooling problems seriously limited flights due engines inability hold steady needle valve settings 25% nitro fuel Phil Sibiles venerable F4C RC PRECISION SCALE WORLD CHAMPIONSHIPS RESULTS P1Name 1T Melleney 2MReeves 3J Rousseau 4MJonckheere 5G Dale 6D Draheim 7J Mayer 8R Nilsson 9T Manley 10G Rose 11JSwift 12K Qetiker 13H Reger 14A Depaux 15R Fouquereau 16EThompson 17B Wischer 18B Frilander Team Results Nation England England France Canada Canada W Germ W Germ Sweden England USA Canada Switzer W Germ France France USA USA Finland Model Moth Minor Spitfire IX CAP 20 Stearman 4GM Pitts S-2A BO 207 Bachstelze Druine Turbulent DH 82 Tiger Moth Blackburn Shark Curtiss P-6E Hawk RV3 Bucker Jungmeister Zlin 126 CAP 21 CAP 20L Focke-WuIf 44J Ryan SCW KZ VII 1 England 150395 5 USA 103958 Scale 1/548 1/6 1/43 1/6 1/48 1/5 1/4 1/44 1/6 1/6 1/4 1/4 1/5 1/4 1/4 1/575 1/56 1/5 Weight 10 lb 50 kg 55 kg 45 kg 42 kg 59 kg 59 kg 56 60 kg 52 kg 50 kg 59 kg 57 kg 55 kg 55 kg 52 kg 41 kg 52 kg 2 Canada 137155 6 Sweden 44704 Engine HP HP Webra Webra Speed Webra Webra HB 0S 604S Webra ST Kraft HP Webra Os 0S Belt 0S ST 0S 60 Static Points 2836 2618 2249 2165 2229 2070 23845 2742 2358 1845 1910 1095 1229 18905 1805 2244 23385 1465 Bonus Percent 5 10 5 10 10 5 5 15 10 10 5 10 5 5 5 10 5 5 3 W Germany 127731 7 Switzerland 3845 BestTotal FlightPoints 2506353423 2621352393 2575648246 2614747797 2440946699 2599846698 220545895 1728444704 2099944579 2506943519 2356242662 27503845 2284835138 1612835033 1351331563 874531185 586929254 979624446 4 France 114842 8 Finland 24446 Spitfire used 1981 Nats qualifi cations consistent US entries flight scoring its low static score prevented high placement overall Charlie Chambers Grumman Cougar sentimental favorite Stand-Off class because first ducted-fan model appear international competition Damaged its first flight attempt all-night repair session followed early morning test flight cool air prepared Charlie prove ducted-fan model could flown high altitude Cheers crowd greeted its first successful take off K&B 75 engine Turbax ducted-fan unit turned up same 23000 rpm lower altitude using 25% nitro fuel thrust definitely less Charlies new Cougar weighs two pounds less model used 1981 Nats yet retains operating featuressuch Rhom re tracts dive brakes flaps navigation lights An unusual model Consoli dated PBY-5A Catalina Herb Christo fersen Denmark small twin 1/5th scale used pair 05 21 engines homemade retracts well retractable wing tip floats tricycle-geared model meet Like European en tries mufflers kept exhaust noise down whisper truly noisy models seemed Amer icans flying sites premium densely-populated nations effort reduce noise pollution reality examined some quiet mufflers found size much greater custom-made fit inshe engine cowls volume al same fuel tank particular size engine F4C Precision class win ning model familiar us first seen Terry Melleneys deHavilland Moth Minor RC Scale World Championships 1972 Toulouse France placed second Terry patiently waited 10 years reach first place premier event air plane appeared identical respect nothing added oyer years Weighing 10 lb having large wing area floats realistically silently through maneuvers reason ably slow speed model features folding wings engine cowl hinged top expose scale engine mounts oversized muffler HP 60 engine Terrys first-place win remarkable because flight bonus 5% conventional land ing gear Mick Reeves brought England same two Spitfires seen Ottawa 1980 F4C Spitfire Mk IX out standing example modeling ingenui ty HP 60 engine cooled through very small air inlet scale position underside cowl using ducting carry air upward Mick has 20-oz flywheel enclosed within spinnerfor balance aid re ducing idle speed engine never dies sudden opening throttle extra-large muffler brought engine noise down point near equal prop noise modeler heard comment really too quietin comparison fullsize plane little noisy CAP 20 Jean Rousseau win ner Ottawa returned place third Reno six Quarter Scale airplanes meet including other two French entries CAP 20L Rene Fouquereau CAP 21 Alain DePaux Both latter re duction belt drives troubled engine starting difficulties World Championships F4C class attracted seven biplanes seeking capitalize bonus awarded type Best advantage taken Swe dens Roy Nilsson DH Tiger Moth received 15% undercambered-airfoil biplane tail wheel Fourth fifth places taken biplane types US teams best flights made George Roses Curtiss Hawk P-6E same model come within half-point winning World Championships Ottawa two years pre viously other two US entries Earl Thompsons Focke-WuIf FW44-J Continued page 162 86 Model Aviation Highest placing American Stand-UT event UIITT acie Spezio Tu-Holer Actually Precision model 3rd static Druine Turbulent Josiiver ousea ar gine Finished polyurethane paint over Coverite weignec ij rn Konrad Oetiker Switzerland lowest static highest flight scores Bucker Jungmeister F4C Precision class Mick Reeves England spot landing short again winning World Championships innovetive Spitfire IX always near top competition Consistently smooth quiet flight Third place Stand-Off second high est flight score meet went Carlo Mapelli Italy Quarter Scale Corben Baby Ace 05 6OFSR engine swung 16-4 prop cut down 15/iin ADVERTISERS INDEX AMA Membership ASAE Ace RC Inc Aerolite Products Aeromarine Enterprises Aerotrend Products Air Design Airtronics side Front Cover ha Americas Hobby Center Andrews Aircraft Model Co Applied Design Corp BK ProductsBalsa USA Richard G Barron Bavarian Precision Products Behrens Plan Service Byron Originals Brownsell Flag & Decal Buckeye Balsa CB Associates California Model imports CarollnaTaffinder Charlies RC Goodies Chicago Expo Circus Hobbies George Clapp Consumers Hobby Corp Contempo Enterprises Coverite Cox Hobbies Jim Crocket Replicas DA Enterprises D & D Engineering DG Proiucts DGM industries DaCa Model Products Davey Systems Corp Jim Denaro Model Products Du-Bro Products Dynathrust Props Eastcraft Specialty Products Explorer Enterprises FAI Model Supply FHS Supply Flightilne Shirts ADVERTISERS INDEX 87 160 116 14 129 137 128 155 75 134 125 138 21 136 159 121 141 131 139 153 157 130 124 154 142-148 . 124 118-119 41 121 84-85 134 156 157 152 128 128 138 149 4 20 14 129 124 157 136 153 ADVERTISERS INDEX Flyline Models159 Fourmost Products116 Fox Mfg Co37 Full Command Systems156 Fults Tooling136 Futaba Corp America75 GTModels159 Gator RC Products160 Gemini Models Inc160 Carl Goldberg Models1 Gorham Model Products15 Great Lakes Model & Mold Co124 Great Planes Model Mfg Co150-151 Grish Brothers130 Hardware Systems Hayes Products DR Higgins Associates Hobby Barn Hobby Capitol RC Holby Hideaway Hobby Horn Hobby Lobby Hobby RadIo Shop Hobby Shack Horizon Model Crafts Homer Sales Indian City RC Club Indy RC Sales J-5 Enterprises K & B Mfg Co K & S Engineering Kin Craft Kraft RC Electronics Kraft Systems Kustom Kraftsmanship Left Bank RC Distributors Leisure Electronics Lltco Systems Lone Star Models MACS Products Majestic Models McDaniel RC Service Jim Messers Quality Model Products Midwest Products 120 39 113 114-115 10 159 159 6-9 160 139 . 149 78 117 122-123 161 158 137 157 117 - 157 158 19 131 156 154 125 137 133 ADVERTISERS INDEX Miniature Aircraft Supply117 Model Engineering Norwalk152 Model Merchant158 Model Rectifier Corp side Back Cover Mutchiers Hobbies126-127 Jerry Nelson & Co137 Nor-Cal Avionic140 Peck-Polymers128 PIca Products31 Dave Platt Models20 Plaza Hobby Craft162 Prestige Models113 Proctor Enterprises131 Prop Shop154 RAC Products137 RF Enterprises139 RJL IndustrieS134 RLF Products132 Repla-Tech International130 Rolley Model Products131 Roush Mfg120 Saf-Filte Models130 Sailplane Factory140 Satellite City163 Sheldons Hobby Shop125 Sig Mfg Co13 Bob Smith RC Aircraft132 Spring Air14 Sterling Models121 Sullivan Products47 Tatone Products78 Technopower Ii161 Top Flite Models2 Tower Hobbles135 Twinn-K Inc132 WE Technical services134 138 Waterlines Inc128 Williams Brothers132 Windsor Propeller Co140 World EnginesBack Cover CA Zaic Co129 Zenith Aviation Books5 NIck Ziroll Models130 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX often twists fuselage enough remove washin washout wing left thrust added thrust helps pull models nose around tighter left circle tends offset turn lost twisting motor stick As consequence often am able use much higher power models some other fliers might note tends out models pretty heavy need power What about winding motors Since rm about out space lets reserve next time lot say about topic very Dwayne Stephens 7253 Red Coat Drive Hamilton OH 45011 513-863-7325 important understand rubber works Bud Tenny PO Box 545 Richardson TX 75080 Scale WC/Wischers Continued page 86 Bob Wischers Ryan SCW both damaged crashes resulted radio problems An extremely sensitive scale used Bill Curtis 2473 E State Street Hermitage PA 16148 412 342-5740 day accurately measure weight model within 1/1000 gram Two planes German team found over 6kg maximum builders found weight could reduced removal such unnecessary items batteries lighting system would have produced insignificant benefit scoring Whereas static scores Stand-Off tightly grouped near top F4C 500-point spread between first sixth places sheer ingenuity design quali ty German team outstanding Detlef Draheims 1/5-scale Bolkow BO 207 Bachstelze used belt-reduction drive originated Maximizer reduction ratio changed 18 1 50 Webra Speed 60 could swing 16-8 prop Detlef made ow oil-and-air shock struts also separate servo trim stabilizer leading edge place elevator trim Josef Mayers 1/3-scale Druine Turbu lent another inconspicuous models awarded high static score wheel brakes operated individually combination depend ing upon rudder position Two full-scale airplanes being de veloped Reno-Stead Airport both pusher-propeller airplanes Lear-Fan advanced-technology project using two turbines drive single carbon-fibre prop second writing advertisers mention read about Model Aviation 162 Model Aviation Eastern US Helicopter Championship Modified NRCHA Format September 25-26 Sharon/Greenville PA Home 19741975 1976&1977 NR CHA NA TS Task competition beginner novice intermediate & expert Includes some aerobatics Preregistration thru September 17-$ 1000 September 8 thru competltion-$ 1500 registration forms information contact FULL*SIZE*PLANS 378Mr Spook Ill$500 RC Rugged craft sport flying Sport Pylon Novice/ Sportsman Aerobatics Use 4-ch 25-40 power No 379Monoboom AA$375 CL Large light superperforming Y2A Combat ship No 380Witch Hawk 500$375 FF Class NB Gas 15-23 power Nats winner No 381RB-59 Gladiator$725 RC Eye-catching tn-gear 1 5-power sportster Czechoslovakia uses 3-ch No 131Gee Bee Model Y 40-powered RC stand-off scale great old-time racers$500 No 168Simitar RC spectacolar flyisg wing t 5 nose-moanted tractor$300 No 225Ole Reliable RC 70 version 38 old-timer REM controls t 9- 25$425 No 239Blue Birds RC Ken Willards formation plane 4-ch tO$375 No 253Mitchell B-25 RC 4-ft /rA twin Ace foam panels Well- behaved$350 No 259chambermaid FF Bill Henno superlative rabber-powred scale winner$200 No 260Waco custom cabinRC Don Sralls scaler t 5-20 REM controls$400 No 262crashmaster CL Crash-proof trainer 2 sizest5-30 35-40$125 No 291cap 20 40-powered scale RC French acrobatic plane Low wing tail dragger 2 sheets $750 No 299GeeBee Sr Sportster RC -scale Haffke 91 power Prototype spas 30 ft 2 sheets $1175 No 302Mini F-16 RC Sarpolss 049 dacted fan sport tier 2-ch Balsa wings tail fsse strscture$275 No 307Pegasus RC Watsons giant super sailplane features flaps spoilers T-tail t 66 wingspan.$675 No 3101930 Fleet Biplane RC Sport Scale 35-40 4-ch Wingspan 56 t16 scale Two sheets$625 No 314Drake II RC Ken Willards flying boat 3-oh. 15-power Fly land removable gear$375 No 317Schweizer TG3-& RC Sport Scale Sailplane Jack Hiner has it-ft span 3-yb Two sheets$1200 No 323Super Voodoo CL Fast Combat John J0 features built-up wing fast construction wins$300 No 325commodore RCTenaco-class Old-Timer Oslan apdates Shereshaws classic 3-ch for29-powet 2 sh$1000 No 326Taylor cub RC Don Srclrs Schoolyard-Scale 049s 2-3 ch Spans 50 in$350 No 329Bristol5coutD RClltzschsPrecision-Scale-sizespan73 bipefor9t powet4 sheets$1650 No 332Zephyr RC Small 2-ch glider hand-laanch tow thermal slope soaring$200 No 335Sopwith Dolphin FF Bill Noonans Jumbo-Rubber scale great WW I-vintage biplane$175 No 337Super Akin-i chips RC Scale-like stunter 5-oh t smoke valve 40-power 2 sheets $700 No 338Rearwin Jr RC Dcc Mathews Sport Scale 4-ch 40-power Monoplane$525 No 340Mossie Stunner CL Twin 35-powered semi-scale based famous WW II Mosquito bomber$400 No 341Brown 8-2 RC Scale-like sport flier 4-oh t9-29-power Race Ovickee hot 25$500 No 343Wasp VI FF Mike Stoys Nats-winning Outdoor HLG$100 No 345La Jolita CLAA Scale Racer Class II also sport Mouse$100 No 347Space Shuttle RC Sport-Scale glider 2-ch launch mother plane$175 No 348Onestep RC Trainer has very forgiving tying qualities 3-ok 1 0-25 power$425 No 350Electric Spitfire RC Fun-Scale 15/25 electric 20-30 glow 3-oh spans 6 ft$750 No 353Eccitaniow CL Sleek 46-powered super-Stunter contest-proven$400 No 354Merlyn RC Giant tSS-in span Sailplane uses 3 RC channels$750 No 385Sentos-Dumontl4-bis RC Sport-Scale canard bipe fort 5-power 3-oh spans SB v2 sheets$575 No 356Maule Lunar Rocket RC -Scale spans 925 S-oh flaps t 2 engine$1200 No 358Pieces FF Indoor Easy B Rubber-power contest-winver W Van Gorder$100 No 359Black Widow RC Fcc-Scale twin two iOn 4-oh RC spans 58 WW II night fighter$675 No 360Dragon CL Slow Combat winner has foam wing uses 36-power$500 No 361Electric count Boy FF Record-holding dnration craft 02 motor$200 No 362Supercat RC Half-A Pylon Racer/sport tier Aileron elevator control Foam wing $200 No 363Tiger Rag CL Sport Stunter biplane 36-power$400 No 364 Neutron Star RC SleeK 40-size Pattern flierwith tail draggerretructs enclosed pipe bsilt-up $525 No 365 Seamaster RCWillards 40-size flying boatfor4-oh Strap-on gear makes landplanel 2 sheets $1100 No 366Truant FF Pert all-balsa beginners sport model 020-power$225 No 367P-39 Airacobra CL Sport-Scale uses water-cooled 45 engine mounted aft entension shaft$1275 No 368Space Shuttle II RC Larger improved version Hun glider 3-oh$550 No 369Super Star CL Semi-scale Stunter 35-power Easy build has contest-proven capability$550 No 370CAP-21 ftC Giant Scale French acrobatic craft spans 7 ft Osadra power 2 sheets $1400 No 371Strato-Streak RC Old-Timer version GarumCs famous 41 FF design power 2-oh$500 No 372Neighviow RC Low-wing fri-gear sportoter power 4-oh$500 No 373cassust II CL Profile Stunter 35 power Flaps$475 No 374Marissa FF Rubber-powered sportoter iv Golden Age tradition$300 No 375Snapshot Twin RC Worhhome utility/sport ship fortwin 35-40475 oh Foam wings lifts t 2 lb 2 shts$1100 No 376Auroroa RC Sport/Acrobatic flier 049-10 power uses 2 3-oh$350 No 377 Wingmaster CL Sport-Stunter Profile fuselage sheet wings in/taps $200 eg... 999 @@O 0@ Circle numbers planss wish order CC 131168 225 239 253 259 260 262 269 278 282 C 285 291299 302 307 310 314 317 323 325 326 328 332 335 337 338 340 341343 345 347 348 350353354355 364365366367 356358359360 368369370371 375 376 377 378 379 380 381 C C C e NAME Please print carefully Enclosed $ plane OMAC canard design using conventional engine Both given test flights present added interest excite ment Reno experience Reno RC Club headed Phil Abbinanti deserves credit having done operational tasks necessary successful inter national contest along Hill Country Flyers headed Ken Wardrip Other key figures included Betty Suzi Stream California have right proud part played international jury contest consisted Dennis Thumpston chair man England Helmuth Ziegler Switzerland John Grigg USA Judges Stand-Off event Roy Yates chief England Carl Mueller Canada Whitey Pritchard USA Pat Ray USA Steve Gray Canada Judges F4C World Championships Tony Aarts chief Netherlands George Buso USA Eric Coates England Andy Sheber USA Paul Jones Canada Contest Direc tor Aerocale 82 Monty Groves able assistance Con test Manager Patricia Groves Highly praised too Ken Barbara Wardrip operated fault less computer scoring system during contest contest adminis tration team including several AMA HQ staff produced smooth functioning contest despite hind-the-scenes problems Handling problems Under wood team Bob Rae Cathy received standing ovation closing banquet efforts name hospitality Highlighting Scale World Cham pionships simple dramatic opening awards ceremonies field featuring raising lowering flags playing national thems Adding spectacular backdrop finale full-scale antique air craft flown occasion includ ing Ford Tn-Motor two biplanes Swedish markings also represented contest model counterparts Overall weather good des pite some periods problems 361362363contest management highly praised 372373374the food plentiful lodging Cwas excellent great World CChampionships winners econsidered deserving eNot much could asked ex gpected STREET 0 CITY STATEZIP _________ Price includBs first-class postage Send chock money order payable Mode/Aviation AMA 815 Fifteenth St NW Washington Dc 20005 icCc9*t/Y*4/. * ty- ,090 164 Model Aviation 0 C C C C C C C 0 0 Full-size Plan List Available complete listing plans previously published magazine through No 364 may obtained free charge writing enclose stamped pre-addressed businesssize envelop Model Aviation 815 Fit teenth 5t NW Washington DC 20005

THE SEVENTH RC Scale World Cham pionships known Aerocale 82 far successful competition history event F6rty-three entrants represented 14 nations first time Stand-Off Scale mod els outnumbered F4C Pre cision class world competition Quality airplanes well flight very similar two classes assembled display work hangar Reno-Stead Airport possible tell apart label cards cases As US two classes have almost completely blended opinion shared mem bers official jury judges generally conceded contestants past World Championships making repeat ap pearances 1982 meet brought 18 new modelers out 25 total Stand-Off class nine new faces Wim Reynders Belgium winner Stand-Off Scale International Contest highest flight score meetover 2900 points Belgiums first appear ance world RC Scale competition Reyn ders DH Mosquito built Brian Taylor plans 80 Model Aviation excitement generated Charlie Chambers ducted-fan Grumman Cougar other plane Large th maneuvers screaming K&B 75commanded attention model built Jet Hangar Hobbies kit AEROSCALE S2 RENO 18 total F4C turnover indication growth RC Scale viewpoint permitted making new friends setting premier Scale event Reno-Stead Airport about 10 miles north city field altitude bit over 5000 feet height combined 850F afternoon temperatures re sponsible some difficultieswith inability climb due poor engine performance reduced lift Don Jehlik hand mix special fuels varying amounts nitromethane up 25% other ingredients help overcome deficiency engine performance Roy Nilsson Sweden used straight FAI fuel nitro DH Tiger Moth Os 60 four-stroke engine models needed greater takeoff speed obtain same climb angle lower altitude Only South Afri can teammembers normally fly Renos altitudewere comfortable about models flight Weather also played part Reno addition altitude wind shifts accompanied gustiness inter spersed dust devils actually damaged models competition stopped several times heavy thunder storms Everyone scrambled cover though always successfully Rene Fouquereaus CAP 20L damaged whirling dust devil snatched platform dropped pavement Alfons Ceulemans crashed P-s 1 Mustang attempting test flight high winds rain mostly weather excel lent first three days almost perfecta few complaints heard about being enough wind last three days mixture nice mornings afternoon storms lat ter noted local modelers highly unusual weather statis tics backed up almost never rains June Reno However Nation al Contest World Championships participants have long ago learned normal weather never prevails during such events spite altitude winning September 1982 81 After waiting 10 years chance 1982 RC Scale World Champion F4C Precision Terry Melleney England deHavilland Moth Minor Terry highest static points Though 5% bonus came through near-perfect flights I Bertil Frilander Finland entered Quarter Scale version KZ VII Lark Danish light plane Finland five nations making first-time appearance events full-scale Focke-WuIf FW44J owned Monty Groves Contest Director ot events part fly-in classics antiques last day model same plane shown Earl Thompson powered 05 6OFSR 2i4-in shaft extension Authors thought Thompsons model accurately detailed models meet Mick Reeves England brought two Spitfiresone classand low air density caused crash Stand-Off-class model stalled top loop demolished itself pavement Mick went F4C Spitfire secure second place Only missed spot landing kept him becoming first contestant RC Scale win World Champion ships twice Other victims alti tude Walter Scherbachs deHavil land Moth Minor stalled out loop Gianni Ghilardis Liberty Sport insufficient altitude com plete three-turn spin Charlie Chambers Grumman Cougar ducted-fan model lifted bit early take off snap-rolled runway Both Moth Minor Cougar repaired flown successfully afterwards real test perseverance face adversity parts both modelers first event judged flown Stand-Off Ten national teams competing As Ottawa two years previously Swedish team came prepared sweep competi tion WW Pfalz Mikael Carlson Zlin 526A5 Kiell-Ake Elofsson Mitsubishi Zero Lars Helmbro light wing loadings example Elofs sons Zlin retracts weighed 65 lb compared numerous F4C entries close 13-lb maximum First place however ap peared closely contested between pair deHavilland Mosquitos Wim Reynders Belgium Sepp Ulber lacher Canada both taking advantage 20% bonus retractable landing gear twin en ginesin addition having some highest static scores Both built Brian Taylor plans Sepp needed solve gear retraction problems homemade mechanism final flight didnt approach score required overtake Reynders although model functioned hitch Static scores Stand-Off event 82 Model Aviation Highest placing American F4C Precision event George Roses Curtiss Hawk P-6E consistently good flightsbut low static score compared 2nd place 1980 Fifth place F4C class taken Gerry Dale Canada scratch-built Pius S-2A using Webra 61 Champion engine rear carburetor Model finished K&B primer color applied over Coverite Pitts 2-in-scale 10% flight bonus models quite easily flown speeds reasonably approached scale per formancebut too slow speed during low-level maneuvers could disastrous Mikael Carlson Team Sweden youngest competitor age 22 Lightweight Pfalz DXII Webra 60 took second Stand-Off Sopwith Pup South Africa Paddy Martin flew several WW types Biplanes popular due FAIs bonus system Stand-Off champ Ottawa Lars Heimbro Sweden used back-up Zero Reno because NA Harvard damaged re cently Zeros flight quiet slow closely bunched near topwith spread 125 points between 1st 6th places Reeves ill-fated Spitfire highest score could have formidable contender succumbed altitude sickness ings Italian team three models Amen- Placings Stand-Off class reflec can home-built airplanes second ted bonus systems affectthe winthe Swedish team quality shown ner model 20% bonus high static scores final stand- its design features second place September 198283 Sepp Uiberlacher ot last ily chance catch Reynders could make near-perfect score Mos quito weighed 10 lb OS 25F5R engines homemade retracts Id Champ Jean Rousseau juarrer Scale model needed higi iu uu competitive British Detlef Draheim W Germany left flew well under difficult con ditions Bolkow BO 207 Bachstelze uses Webra Speed 60 belt reduction 15-8 prop Balsa fiberglass construction Stits Playboy Carlo Bergamasclji Italy Italians brought three American home-built light planes finished second team Phil Sibilles Mk IX version three Spitfires entered Reno US team finished third Stand-Off event FAI RC STAND-OFF SCALE INTERNATIONAL CONTEST RESULTS PH Name 1 W Reynders 2 MCarlson 3 C Mapelli 4 S Uiberlacher 5 KA Elofsson 6 L Helmbro 7 C Tacie 8 J Ehiers 9 GSmith 10 C Bergamaschi 11 C Hambers 12 A Van Wyk 13 MReeves 14 P Martin 15 G Watson 16 G Ghilardi 17 H Christophersen 18 P Sibille 19 R Batten 20 B Borland 21 D Paquette 22 LRG Ackroyd 23 R Gareau 24 W Schubach 25 A Ceulemans Nation Belgium Sweden Italy Canada Sweden Sweden USA S Africa England Italy USA S Africa England S Africa Australia Italy Denmark USA Australia N Zealand Canada N Zealand Canada Australia Belgium Team Results 1 Sweden 154166 6 Australia 110745 Model DH Mosquito NF 30 Pfalz DXII Baby Ace DH Mosquito Mk II Zlin Akrobat Zero Spezia Tu Holer Bucker Jungmeister Pomilia Stits Playboy Grumman Cougar Spinks Akromaster Spitfire Mk Vb Sopwith Pup Christen Eagle Liberty Sport PBY 5A Spitfire Mk IX Ryan STM Miles M2 Hawk Hawker Sea Fury DH 82 Tiger Moth DH Tiger Moth 82A Moth Minor P51 D 2 Italy 138624 7 England 88611 Scale 1/9 1/6 1/4 1/9 1/6 1751 1/4 1/4 1/7 1/4 1851 1/54 1/6 1/5 1/48 1/55 1/15 1/6 1/6 1/6 1551 1/6 1/6 1/6 1/7 Weight 50 kg 32 kg 48 kg 55 kg 31 kg 39 kg 47 kg 49 kg 6h lb 36 kg 43 kg 37 kg 5 kg 495 kg 30 kg 44 kg 45 kg 46 kg 47 kg 32 kg 10 lb 39 kg 225 kg 34 kg 40 kg Engine 2OS 25 Webra OS FS 2OS 25 OS 50 Veco 61 OS 60 Webra LS OS 40 Webra Turbex DF 05 6OFSR HP61 HP 61 05 60 Rossi 205 21 HB 05 60 OS 60 HP 61 0S 60 K&B 40 ST 61 Merco 3 USA 13242 8 New Zealand 73398 Static Points 2650 2650 2545 2670 27425 26225 2695 2495 23475 2385 25725 2175 27775 1930 24825 2515 1985 1640 2120 2085 15925 1730 1250 1520 20175 Bonus Percent 20 15 5 20 10 10 5 10 15 5 10 5 10 15 10 10 20 10 5 5 10 15 10 5 10 4 South Africa 130389 9 Belgium 55528 BestTotal FlightPoints 2902855528 25995249 2656552015 25205190 2389251317 2413450359 2087447824 2270447654 2389747372 2262746477 1905244777 2043342183 1346441239 2125240552 1531240137 1498240132 2005239902 2341 939819 1838539585 1810238952 2140637331 1714634446 1884331343 1582331023 5 Canada 120574 10 Denmark 39902 model qualified 15% third fourth place models got 10% extra indicates FAT bonus system complexity has effect promoting use biplanes multi-engine types landing gear retraction Cliff Tacie highest static scoring among US Stand-Off team members new Spezio Tu-Holer really Precision Scale quality expected have high score En gine cooling problems seriously limited flights due engines inability hold steady needle valve settings 25% nitro fuel Phil Sibiles venerable F4C RC PRECISION SCALE WORLD CHAMPIONSHIPS RESULTS P1Name 1T Melleney 2MReeves 3J Rousseau 4MJonckheere 5G Dale 6D Draheim 7J Mayer 8R Nilsson 9T Manley 10G Rose 11JSwift 12K Qetiker 13H Reger 14A Depaux 15R Fouquereau 16EThompson 17B Wischer 18B Frilander Team Results Nation England England France Canada Canada W Germ W Germ Sweden England USA Canada Switzer W Germ France France USA USA Finland Model Moth Minor Spitfire IX CAP 20 Stearman 4GM Pitts S-2A BO 207 Bachstelze Druine Turbulent DH 82 Tiger Moth Blackburn Shark Curtiss P-6E Hawk RV3 Bucker Jungmeister Zlin 126 CAP 21 CAP 20L Focke-WuIf 44J Ryan SCW KZ VII 1 England 150395 5 USA 103958 Scale 1/548 1/6 1/43 1/6 1/48 1/5 1/4 1/44 1/6 1/6 1/4 1/4 1/5 1/4 1/4 1/575 1/56 1/5 Weight 10 lb 50 kg 55 kg 45 kg 42 kg 59 kg 59 kg 56 60 kg 52 kg 50 kg 59 kg 57 kg 55 kg 55 kg 52 kg 41 kg 52 kg 2 Canada 137155 6 Sweden 44704 Engine HP HP Webra Webra Speed Webra Webra HB 0S 604S Webra ST Kraft HP Webra Os 0S Belt 0S ST 0S 60 Static Points 2836 2618 2249 2165 2229 2070 23845 2742 2358 1845 1910 1095 1229 18905 1805 2244 23385 1465 Bonus Percent 5 10 5 10 10 5 5 15 10 10 5 10 5 5 5 10 5 5 3 W Germany 127731 7 Switzerland 3845 BestTotal FlightPoints 2506353423 2621352393 2575648246 2614747797 2440946699 2599846698 220545895 1728444704 2099944579 2506943519 2356242662 27503845 2284835138 1612835033 1351331563 874531185 586929254 979624446 4 France 114842 8 Finland 24446 Spitfire used 1981 Nats qualifi cations consistent US entries flight scoring its low static score prevented high placement overall Charlie Chambers Grumman Cougar sentimental favorite Stand-Off class because first ducted-fan model appear international competition Damaged its first flight attempt all-night repair session followed early morning test flight cool air prepared Charlie prove ducted-fan model could flown high altitude Cheers crowd greeted its first successful take off K&B 75 engine Turbax ducted-fan unit turned up same 23000 rpm lower altitude using 25% nitro fuel thrust definitely less Charlies new Cougar weighs two pounds less model used 1981 Nats yet retains operating featuressuch Rhom re tracts dive brakes flaps navigation lights An unusual model Consoli dated PBY-5A Catalina Herb Christo fersen Denmark small twin 1/5th scale used pair 05 21 engines homemade retracts well retractable wing tip floats tricycle-geared model meet Like European en tries mufflers kept exhaust noise down whisper truly noisy models seemed Amer icans flying sites premium densely-populated nations effort reduce noise pollution reality examined some quiet mufflers found size much greater custom-made fit inshe engine cowls volume al same fuel tank particular size engine F4C Precision class win ning model familiar us first seen Terry Melleneys deHavilland Moth Minor RC Scale World Championships 1972 Toulouse France placed second Terry patiently waited 10 years reach first place premier event air plane appeared identical respect nothing added oyer years Weighing 10 lb having large wing area floats realistically silently through maneuvers reason ably slow speed model features folding wings engine cowl hinged top expose scale engine mounts oversized muffler HP 60 engine Terrys first-place win remarkable because flight bonus 5% conventional land ing gear Mick Reeves brought England same two Spitfires seen Ottawa 1980 F4C Spitfire Mk IX out standing example modeling ingenui ty HP 60 engine cooled through very small air inlet scale position underside cowl using ducting carry air upward Mick has 20-oz flywheel enclosed within spinnerfor balance aid re ducing idle speed engine never dies sudden opening throttle extra-large muffler brought engine noise down point near equal prop noise modeler heard comment really too quietin comparison fullsize plane little noisy CAP 20 Jean Rousseau win ner Ottawa returned place third Reno six Quarter Scale airplanes meet including other two French entries CAP 20L Rene Fouquereau CAP 21 Alain DePaux Both latter re duction belt drives troubled engine starting difficulties World Championships F4C class attracted seven biplanes seeking capitalize bonus awarded type Best advantage taken Swe dens Roy Nilsson DH Tiger Moth received 15% undercambered-airfoil biplane tail wheel Fourth fifth places taken biplane types US teams best flights made George Roses Curtiss Hawk P-6E same model come within half-point winning World Championships Ottawa two years pre viously other two US entries Earl Thompsons Focke-WuIf FW44-J Continued page 162 86 Model Aviation Highest placing American Stand-UT event UIITT acie Spezio Tu-Holer Actually Precision model 3rd static Druine Turbulent Josiiver ousea ar gine Finished polyurethane paint over Coverite weignec ij rn Konrad Oetiker Switzerland lowest static highest flight scores Bucker Jungmeister F4C Precision class Mick Reeves England spot landing short again winning World Championships innovetive Spitfire IX always near top competition Consistently smooth quiet flight Third place Stand-Off second high est flight score meet went Carlo Mapelli Italy Quarter Scale Corben Baby Ace 05 6OFSR engine swung 16-4 prop cut down 15/iin ADVERTISERS INDEX AMA Membership ASAE Ace RC Inc Aerolite Products Aeromarine Enterprises Aerotrend Products Air Design Airtronics side Front Cover ha Americas Hobby Center Andrews Aircraft Model Co Applied Design Corp BK ProductsBalsa USA Richard G Barron Bavarian Precision Products Behrens Plan Service Byron Originals Brownsell Flag & Decal Buckeye Balsa CB Associates California Model imports CarollnaTaffinder Charlies RC Goodies Chicago Expo Circus Hobbies George Clapp Consumers Hobby Corp Contempo Enterprises Coverite Cox Hobbies Jim Crocket Replicas DA Enterprises D & D Engineering DG Proiucts DGM industries DaCa Model Products Davey Systems Corp Jim Denaro Model Products Du-Bro Products Dynathrust Props Eastcraft Specialty Products Explorer Enterprises FAI Model Supply FHS Supply Flightilne Shirts ADVERTISERS INDEX 87 160 116 14 129 137 128 155 75 134 125 138 21 136 159 121 141 131 139 153 157 130 124 154 142-148 . 124 118-119 41 121 84-85 134 156 157 152 128 128 138 149 4 20 14 129 124 157 136 153 ADVERTISERS INDEX Flyline Models159 Fourmost Products116 Fox Mfg Co37 Full Command Systems156 Fults Tooling136 Futaba Corp America75 GTModels159 Gator RC Products160 Gemini Models Inc160 Carl Goldberg Models1 Gorham Model Products15 Great Lakes Model & Mold Co124 Great Planes Model Mfg Co150-151 Grish Brothers130 Hardware Systems Hayes Products DR Higgins Associates Hobby Barn Hobby Capitol RC Holby Hideaway Hobby Horn Hobby Lobby Hobby RadIo Shop Hobby Shack Horizon Model Crafts Homer Sales Indian City RC Club Indy RC Sales J-5 Enterprises K & B Mfg Co K & S Engineering Kin Craft Kraft RC Electronics Kraft Systems Kustom Kraftsmanship Left Bank RC Distributors Leisure Electronics Lltco Systems Lone Star Models MACS Products Majestic Models McDaniel RC Service Jim Messers Quality Model Products Midwest Products 120 39 113 114-115 10 159 159 6-9 160 139 . 149 78 117 122-123 161 158 137 157 117 - 157 158 19 131 156 154 125 137 133 ADVERTISERS INDEX Miniature Aircraft Supply117 Model Engineering Norwalk152 Model Merchant158 Model Rectifier Corp side Back Cover Mutchiers Hobbies126-127 Jerry Nelson & Co137 Nor-Cal Avionic140 Peck-Polymers128 PIca Products31 Dave Platt Models20 Plaza Hobby Craft162 Prestige Models113 Proctor Enterprises131 Prop Shop154 RAC Products137 RF Enterprises139 RJL IndustrieS134 RLF Products132 Repla-Tech International130 Rolley Model Products131 Roush Mfg120 Saf-Filte Models130 Sailplane Factory140 Satellite City163 Sheldons Hobby Shop125 Sig Mfg Co13 Bob Smith RC Aircraft132 Spring Air14 Sterling Models121 Sullivan Products47 Tatone Products78 Technopower Ii161 Top Flite Models2 Tower Hobbles135 Twinn-K Inc132 WE Technical services134 138 Waterlines Inc128 Williams Brothers132 Windsor Propeller Co140 World EnginesBack Cover CA Zaic Co129 Zenith Aviation Books5 NIck Ziroll Models130 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX often twists fuselage enough remove washin washout wing left thrust added thrust helps pull models nose around tighter left circle tends offset turn lost twisting motor stick As consequence often am able use much higher power models some other fliers might note tends out models pretty heavy need power What about winding motors Since rm about out space lets reserve next time lot say about topic very Dwayne Stephens 7253 Red Coat Drive Hamilton OH 45011 513-863-7325 important understand rubber works Bud Tenny PO Box 545 Richardson TX 75080 Scale WC/Wischers Continued page 86 Bob Wischers Ryan SCW both damaged crashes resulted radio problems An extremely sensitive scale used Bill Curtis 2473 E State Street Hermitage PA 16148 412 342-5740 day accurately measure weight model within 1/1000 gram Two planes German team found over 6kg maximum builders found weight could reduced removal such unnecessary items batteries lighting system would have produced insignificant benefit scoring Whereas static scores Stand-Off tightly grouped near top F4C 500-point spread between first sixth places sheer ingenuity design quali ty German team outstanding Detlef Draheims 1/5-scale Bolkow BO 207 Bachstelze used belt-reduction drive originated Maximizer reduction ratio changed 18 1 50 Webra Speed 60 could swing 16-8 prop Detlef made ow oil-and-air shock struts also separate servo trim stabilizer leading edge place elevator trim Josef Mayers 1/3-scale Druine Turbu lent another inconspicuous models awarded high static score wheel brakes operated individually combination depend ing upon rudder position Two full-scale airplanes being de veloped Reno-Stead Airport both pusher-propeller airplanes Lear-Fan advanced-technology project using two turbines drive single carbon-fibre prop second writing advertisers mention read about Model Aviation 162 Model Aviation Eastern US Helicopter Championship Modified NRCHA Format September 25-26 Sharon/Greenville PA Home 19741975 1976&1977 NR CHA NA TS Task competition beginner novice intermediate & expert Includes some aerobatics Preregistration thru September 17-$ 1000 September 8 thru competltion-$ 1500 registration forms information contact FULL*SIZE*PLANS 378Mr Spook Ill$500 RC Rugged craft sport flying Sport Pylon Novice/ Sportsman Aerobatics Use 4-ch 25-40 power No 379Monoboom AA$375 CL Large light superperforming Y2A Combat ship No 380Witch Hawk 500$375 FF Class NB Gas 15-23 power Nats winner No 381RB-59 Gladiator$725 RC Eye-catching tn-gear 1 5-power sportster Czechoslovakia uses 3-ch No 131Gee Bee Model Y 40-powered RC stand-off scale great old-time racers$500 No 168Simitar RC spectacolar flyisg wing t 5 nose-moanted tractor$300 No 225Ole Reliable RC 70 version 38 old-timer REM controls t 9- 25$425 No 239Blue Birds RC Ken Willards formation plane 4-ch tO$375 No 253Mitchell B-25 RC 4-ft /rA twin Ace foam panels Well- behaved$350 No 259chambermaid FF Bill Henno superlative rabber-powred scale winner$200 No 260Waco custom cabinRC Don Sralls scaler t 5-20 REM controls$400 No 262crashmaster CL Crash-proof trainer 2 sizest5-30 35-40$125 No 291cap 20 40-powered scale RC French acrobatic plane Low wing tail dragger 2 sheets $750 No 299GeeBee Sr Sportster RC -scale Haffke 91 power Prototype spas 30 ft 2 sheets $1175 No 302Mini F-16 RC Sarpolss 049 dacted fan sport tier 2-ch Balsa wings tail fsse strscture$275 No 307Pegasus RC Watsons giant super sailplane features flaps spoilers T-tail t 66 wingspan.$675 No 3101930 Fleet Biplane RC Sport Scale 35-40 4-ch Wingspan 56 t16 scale Two sheets$625 No 314Drake II RC Ken Willards flying boat 3-oh. 15-power Fly land removable gear$375 No 317Schweizer TG3-& RC Sport Scale Sailplane Jack Hiner has it-ft span 3-yb Two sheets$1200 No 323Super Voodoo CL Fast Combat John J0 features built-up wing fast construction wins$300 No 325commodore RCTenaco-class Old-Timer Oslan apdates Shereshaws classic 3-ch for29-powet 2 sh$1000 No 326Taylor cub RC Don Srclrs Schoolyard-Scale 049s 2-3 ch Spans 50 in$350 No 329Bristol5coutD RClltzschsPrecision-Scale-sizespan73 bipefor9t powet4 sheets$1650 No 332Zephyr RC Small 2-ch glider hand-laanch tow thermal slope soaring$200 No 335Sopwith Dolphin FF Bill Noonans Jumbo-Rubber scale great WW I-vintage biplane$175 No 337Super Akin-i chips RC Scale-like stunter 5-oh t smoke valve 40-power 2 sheets $700 No 338Rearwin Jr RC Dcc Mathews Sport Scale 4-ch 40-power Monoplane$525 No 340Mossie Stunner CL Twin 35-powered semi-scale based famous WW II Mosquito bomber$400 No 341Brown 8-2 RC Scale-like sport flier 4-oh t9-29-power Race Ovickee hot 25$500 No 343Wasp VI FF Mike Stoys Nats-winning Outdoor HLG$100 No 345La Jolita CLAA Scale Racer Class II also sport Mouse$100 No 347Space Shuttle RC Sport-Scale glider 2-ch launch mother plane$175 No 348Onestep RC Trainer has very forgiving tying qualities 3-ok 1 0-25 power$425 No 350Electric Spitfire RC Fun-Scale 15/25 electric 20-30 glow 3-oh spans 6 ft$750 No 353Eccitaniow CL Sleek 46-powered super-Stunter contest-proven$400 No 354Merlyn RC Giant tSS-in span Sailplane uses 3 RC channels$750 No 385Sentos-Dumontl4-bis RC Sport-Scale canard bipe fort 5-power 3-oh spans SB v2 sheets$575 No 356Maule Lunar Rocket RC -Scale spans 925 S-oh flaps t 2 engine$1200 No 358Pieces FF Indoor Easy B Rubber-power contest-winver W Van Gorder$100 No 359Black Widow RC Fcc-Scale twin two iOn 4-oh RC spans 58 WW II night fighter$675 No 360Dragon CL Slow Combat winner has foam wing uses 36-power$500 No 361Electric count Boy FF Record-holding dnration craft 02 motor$200 No 362Supercat RC Half-A Pylon Racer/sport tier Aileron elevator control Foam wing $200 No 363Tiger Rag CL Sport Stunter biplane 36-power$400 No 364 Neutron Star RC SleeK 40-size Pattern flierwith tail draggerretructs enclosed pipe bsilt-up $525 No 365 Seamaster RCWillards 40-size flying boatfor4-oh Strap-on gear makes landplanel 2 sheets $1100 No 366Truant FF Pert all-balsa beginners sport model 020-power$225 No 367P-39 Airacobra CL Sport-Scale uses water-cooled 45 engine mounted aft entension shaft$1275 No 368Space Shuttle II RC Larger improved version Hun glider 3-oh$550 No 369Super Star CL Semi-scale Stunter 35-power Easy build has contest-proven capability$550 No 370CAP-21 ftC Giant Scale French acrobatic craft spans 7 ft Osadra power 2 sheets $1400 No 371Strato-Streak RC Old-Timer version GarumCs famous 41 FF design power 2-oh$500 No 372Neighviow RC Low-wing fri-gear sportoter power 4-oh$500 No 373cassust II CL Profile Stunter 35 power Flaps$475 No 374Marissa FF Rubber-powered sportoter iv Golden Age tradition$300 No 375Snapshot Twin RC Worhhome utility/sport ship fortwin 35-40475 oh Foam wings lifts t 2 lb 2 shts$1100 No 376Auroroa RC Sport/Acrobatic flier 049-10 power uses 2 3-oh$350 No 377 Wingmaster CL Sport-Stunter Profile fuselage sheet wings in/taps $200 eg... 999 @@O 0@ Circle numbers planss wish order CC 131168 225 239 253 259 260 262 269 278 282 C 285 291299 302 307 310 314 317 323 325 326 328 332 335 337 338 340 341343 345 347 348 350353354355 364365366367 356358359360 368369370371 375 376 377 378 379 380 381 C C C e NAME Please print carefully Enclosed $ plane OMAC canard design using conventional engine Both given test flights present added interest excite ment Reno experience Reno RC Club headed Phil Abbinanti deserves credit having done operational tasks necessary successful inter national contest along Hill Country Flyers headed Ken Wardrip Other key figures included Betty Suzi Stream California have right proud part played international jury contest consisted Dennis Thumpston chair man England Helmuth Ziegler Switzerland John Grigg USA Judges Stand-Off event Roy Yates chief England Carl Mueller Canada Whitey Pritchard USA Pat Ray USA Steve Gray Canada Judges F4C World Championships Tony Aarts chief Netherlands George Buso USA Eric Coates England Andy Sheber USA Paul Jones Canada Contest Direc tor Aerocale 82 Monty Groves able assistance Con test Manager Patricia Groves Highly praised too Ken Barbara Wardrip operated fault less computer scoring system during contest contest adminis tration team including several AMA HQ staff produced smooth functioning contest despite hind-the-scenes problems Handling problems Under wood team Bob Rae Cathy received standing ovation closing banquet efforts name hospitality Highlighting Scale World Cham pionships simple dramatic opening awards ceremonies field featuring raising lowering flags playing national thems Adding spectacular backdrop finale full-scale antique air craft flown occasion includ ing Ford Tn-Motor two biplanes Swedish markings also represented contest model counterparts Overall weather good des pite some periods problems 361362363contest management highly praised 372373374the food plentiful lodging Cwas excellent great World CChampionships winners econsidered deserving eNot much could asked ex gpected STREET 0 CITY STATEZIP _________ Price includBs first-class postage Send chock money order payable Mode/Aviation AMA 815 Fifteenth St NW Washington Dc 20005 icCc9*t/Y*4/. * ty- ,090 164 Model Aviation 0 C C C C C C C 0 0 Full-size Plan List Available complete listing plans previously published magazine through No 364 may obtained free charge writing enclose stamped pre-addressed businesssize envelop Model Aviation 815 Fit teenth 5t NW Washington DC 20005

THE SEVENTH RC Scale World Cham pionships known Aerocale 82 far successful competition history event F6rty-three entrants represented 14 nations first time Stand-Off Scale mod els outnumbered F4C Pre cision class world competition Quality airplanes well flight very similar two classes assembled display work hangar Reno-Stead Airport possible tell apart label cards cases As US two classes have almost completely blended opinion shared mem bers official jury judges generally conceded contestants past World Championships making repeat ap pearances 1982 meet brought 18 new modelers out 25 total Stand-Off class nine new faces Wim Reynders Belgium winner Stand-Off Scale International Contest highest flight score meetover 2900 points Belgiums first appear ance world RC Scale competition Reyn ders DH Mosquito built Brian Taylor plans 80 Model Aviation excitement generated Charlie Chambers ducted-fan Grumman Cougar other plane Large th maneuvers screaming K&B 75commanded attention model built Jet Hangar Hobbies kit AEROSCALE S2 RENO 18 total F4C turnover indication growth RC Scale viewpoint permitted making new friends setting premier Scale event Reno-Stead Airport about 10 miles north city field altitude bit over 5000 feet height combined 850F afternoon temperatures re sponsible some difficultieswith inability climb due poor engine performance reduced lift Don Jehlik hand mix special fuels varying amounts nitromethane up 25% other ingredients help overcome deficiency engine performance Roy Nilsson Sweden used straight FAI fuel nitro DH Tiger Moth Os 60 four-stroke engine models needed greater takeoff speed obtain same climb angle lower altitude Only South Afri can teammembers normally fly Renos altitudewere comfortable about models flight Weather also played part Reno addition altitude wind shifts accompanied gustiness inter spersed dust devils actually damaged models competition stopped several times heavy thunder storms Everyone scrambled cover though always successfully Rene Fouquereaus CAP 20L damaged whirling dust devil snatched platform dropped pavement Alfons Ceulemans crashed P-s 1 Mustang attempting test flight high winds rain mostly weather excel lent first three days almost perfecta few complaints heard about being enough wind last three days mixture nice mornings afternoon storms lat ter noted local modelers highly unusual weather statis tics backed up almost never rains June Reno However Nation al Contest World Championships participants have long ago learned normal weather never prevails during such events spite altitude winning September 1982 81 After waiting 10 years chance 1982 RC Scale World Champion F4C Precision Terry Melleney England deHavilland Moth Minor Terry highest static points Though 5% bonus came through near-perfect flights I Bertil Frilander Finland entered Quarter Scale version KZ VII Lark Danish light plane Finland five nations making first-time appearance events full-scale Focke-WuIf FW44J owned Monty Groves Contest Director ot events part fly-in classics antiques last day model same plane shown Earl Thompson powered 05 6OFSR 2i4-in shaft extension Authors thought Thompsons model accurately detailed models meet Mick Reeves England brought two Spitfiresone classand low air density caused crash Stand-Off-class model stalled top loop demolished itself pavement Mick went F4C Spitfire secure second place Only missed spot landing kept him becoming first contestant RC Scale win World Champion ships twice Other victims alti tude Walter Scherbachs deHavil land Moth Minor stalled out loop Gianni Ghilardis Liberty Sport insufficient altitude com plete three-turn spin Charlie Chambers Grumman Cougar ducted-fan model lifted bit early take off snap-rolled runway Both Moth Minor Cougar repaired flown successfully afterwards real test perseverance face adversity parts both modelers first event judged flown Stand-Off Ten national teams competing As Ottawa two years previously Swedish team came prepared sweep competi tion WW Pfalz Mikael Carlson Zlin 526A5 Kiell-Ake Elofsson Mitsubishi Zero Lars Helmbro light wing loadings example Elofs sons Zlin retracts weighed 65 lb compared numerous F4C entries close 13-lb maximum First place however ap peared closely contested between pair deHavilland Mosquitos Wim Reynders Belgium Sepp Ulber lacher Canada both taking advantage 20% bonus retractable landing gear twin en ginesin addition having some highest static scores Both built Brian Taylor plans Sepp needed solve gear retraction problems homemade mechanism final flight didnt approach score required overtake Reynders although model functioned hitch Static scores Stand-Off event 82 Model Aviation Highest placing American F4C Precision event George Roses Curtiss Hawk P-6E consistently good flightsbut low static score compared 2nd place 1980 Fifth place F4C class taken Gerry Dale Canada scratch-built Pius S-2A using Webra 61 Champion engine rear carburetor Model finished K&B primer color applied over Coverite Pitts 2-in-scale 10% flight bonus models quite easily flown speeds reasonably approached scale per formancebut too slow speed during low-level maneuvers could disastrous Mikael Carlson Team Sweden youngest competitor age 22 Lightweight Pfalz DXII Webra 60 took second Stand-Off Sopwith Pup South Africa Paddy Martin flew several WW types Biplanes popular due FAIs bonus system Stand-Off champ Ottawa Lars Heimbro Sweden used back-up Zero Reno because NA Harvard damaged re cently Zeros flight quiet slow closely bunched near topwith spread 125 points between 1st 6th places Reeves ill-fated Spitfire highest score could have formidable contender succumbed altitude sickness ings Italian team three models Amen- Placings Stand-Off class reflec can home-built airplanes second ted bonus systems affectthe winthe Swedish team quality shown ner model 20% bonus high static scores final stand- its design features second place September 198283 Sepp Uiberlacher ot last ily chance catch Reynders could make near-perfect score Mos quito weighed 10 lb OS 25F5R engines homemade retracts Id Champ Jean Rousseau juarrer Scale model needed higi iu uu competitive British Detlef Draheim W Germany left flew well under difficult con ditions Bolkow BO 207 Bachstelze uses Webra Speed 60 belt reduction 15-8 prop Balsa fiberglass construction Stits Playboy Carlo Bergamasclji Italy Italians brought three American home-built light planes finished second team Phil Sibilles Mk IX version three Spitfires entered Reno US team finished third Stand-Off event FAI RC STAND-OFF SCALE INTERNATIONAL CONTEST RESULTS PH Name 1 W Reynders 2 MCarlson 3 C Mapelli 4 S Uiberlacher 5 KA Elofsson 6 L Helmbro 7 C Tacie 8 J Ehiers 9 GSmith 10 C Bergamaschi 11 C Hambers 12 A Van Wyk 13 MReeves 14 P Martin 15 G Watson 16 G Ghilardi 17 H Christophersen 18 P Sibille 19 R Batten 20 B Borland 21 D Paquette 22 LRG Ackroyd 23 R Gareau 24 W Schubach 25 A Ceulemans Nation Belgium Sweden Italy Canada Sweden Sweden USA S Africa England Italy USA S Africa England S Africa Australia Italy Denmark USA Australia N Zealand Canada N Zealand Canada Australia Belgium Team Results 1 Sweden 154166 6 Australia 110745 Model DH Mosquito NF 30 Pfalz DXII Baby Ace DH Mosquito Mk II Zlin Akrobat Zero Spezia Tu Holer Bucker Jungmeister Pomilia Stits Playboy Grumman Cougar Spinks Akromaster Spitfire Mk Vb Sopwith Pup Christen Eagle Liberty Sport PBY 5A Spitfire Mk IX Ryan STM Miles M2 Hawk Hawker Sea Fury DH 82 Tiger Moth DH Tiger Moth 82A Moth Minor P51 D 2 Italy 138624 7 England 88611 Scale 1/9 1/6 1/4 1/9 1/6 1751 1/4 1/4 1/7 1/4 1851 1/54 1/6 1/5 1/48 1/55 1/15 1/6 1/6 1/6 1551 1/6 1/6 1/6 1/7 Weight 50 kg 32 kg 48 kg 55 kg 31 kg 39 kg 47 kg 49 kg 6h lb 36 kg 43 kg 37 kg 5 kg 495 kg 30 kg 44 kg 45 kg 46 kg 47 kg 32 kg 10 lb 39 kg 225 kg 34 kg 40 kg Engine 2OS 25 Webra OS FS 2OS 25 OS 50 Veco 61 OS 60 Webra LS OS 40 Webra Turbex DF 05 6OFSR HP61 HP 61 05 60 Rossi 205 21 HB 05 60 OS 60 HP 61 0S 60 K&B 40 ST 61 Merco 3 USA 13242 8 New Zealand 73398 Static Points 2650 2650 2545 2670 27425 26225 2695 2495 23475 2385 25725 2175 27775 1930 24825 2515 1985 1640 2120 2085 15925 1730 1250 1520 20175 Bonus Percent 20 15 5 20 10 10 5 10 15 5 10 5 10 15 10 10 20 10 5 5 10 15 10 5 10 4 South Africa 130389 9 Belgium 55528 BestTotal FlightPoints 2902855528 25995249 2656552015 25205190 2389251317 2413450359 2087447824 2270447654 2389747372 2262746477 1905244777 2043342183 1346441239 2125240552 1531240137 1498240132 2005239902 2341 939819 1838539585 1810238952 2140637331 1714634446 1884331343 1582331023 5 Canada 120574 10 Denmark 39902 model qualified 15% third fourth place models got 10% extra indicates FAT bonus system complexity has effect promoting use biplanes multi-engine types landing gear retraction Cliff Tacie highest static scoring among US Stand-Off team members new Spezio Tu-Holer really Precision Scale quality expected have high score En gine cooling problems seriously limited flights due engines inability hold steady needle valve settings 25% nitro fuel Phil Sibiles venerable F4C RC PRECISION SCALE WORLD CHAMPIONSHIPS RESULTS P1Name 1T Melleney 2MReeves 3J Rousseau 4MJonckheere 5G Dale 6D Draheim 7J Mayer 8R Nilsson 9T Manley 10G Rose 11JSwift 12K Qetiker 13H Reger 14A Depaux 15R Fouquereau 16EThompson 17B Wischer 18B Frilander Team Results Nation England England France Canada Canada W Germ W Germ Sweden England USA Canada Switzer W Germ France France USA USA Finland Model Moth Minor Spitfire IX CAP 20 Stearman 4GM Pitts S-2A BO 207 Bachstelze Druine Turbulent DH 82 Tiger Moth Blackburn Shark Curtiss P-6E Hawk RV3 Bucker Jungmeister Zlin 126 CAP 21 CAP 20L Focke-WuIf 44J Ryan SCW KZ VII 1 England 150395 5 USA 103958 Scale 1/548 1/6 1/43 1/6 1/48 1/5 1/4 1/44 1/6 1/6 1/4 1/4 1/5 1/4 1/4 1/575 1/56 1/5 Weight 10 lb 50 kg 55 kg 45 kg 42 kg 59 kg 59 kg 56 60 kg 52 kg 50 kg 59 kg 57 kg 55 kg 55 kg 52 kg 41 kg 52 kg 2 Canada 137155 6 Sweden 44704 Engine HP HP Webra Webra Speed Webra Webra HB 0S 604S Webra ST Kraft HP Webra Os 0S Belt 0S ST 0S 60 Static Points 2836 2618 2249 2165 2229 2070 23845 2742 2358 1845 1910 1095 1229 18905 1805 2244 23385 1465 Bonus Percent 5 10 5 10 10 5 5 15 10 10 5 10 5 5 5 10 5 5 3 W Germany 127731 7 Switzerland 3845 BestTotal FlightPoints 2506353423 2621352393 2575648246 2614747797 2440946699 2599846698 220545895 1728444704 2099944579 2506943519 2356242662 27503845 2284835138 1612835033 1351331563 874531185 586929254 979624446 4 France 114842 8 Finland 24446 Spitfire used 1981 Nats qualifi cations consistent US entries flight scoring its low static score prevented high placement overall Charlie Chambers Grumman Cougar sentimental favorite Stand-Off class because first ducted-fan model appear international competition Damaged its first flight attempt all-night repair session followed early morning test flight cool air prepared Charlie prove ducted-fan model could flown high altitude Cheers crowd greeted its first successful take off K&B 75 engine Turbax ducted-fan unit turned up same 23000 rpm lower altitude using 25% nitro fuel thrust definitely less Charlies new Cougar weighs two pounds less model used 1981 Nats yet retains operating featuressuch Rhom re tracts dive brakes flaps navigation lights An unusual model Consoli dated PBY-5A Catalina Herb Christo fersen Denmark small twin 1/5th scale used pair 05 21 engines homemade retracts well retractable wing tip floats tricycle-geared model meet Like European en tries mufflers kept exhaust noise down whisper truly noisy models seemed Amer icans flying sites premium densely-populated nations effort reduce noise pollution reality examined some quiet mufflers found size much greater custom-made fit inshe engine cowls volume al same fuel tank particular size engine F4C Precision class win ning model familiar us first seen Terry Melleneys deHavilland Moth Minor RC Scale World Championships 1972 Toulouse France placed second Terry patiently waited 10 years reach first place premier event air plane appeared identical respect nothing added oyer years Weighing 10 lb having large wing area floats realistically silently through maneuvers reason ably slow speed model features folding wings engine cowl hinged top expose scale engine mounts oversized muffler HP 60 engine Terrys first-place win remarkable because flight bonus 5% conventional land ing gear Mick Reeves brought England same two Spitfires seen Ottawa 1980 F4C Spitfire Mk IX out standing example modeling ingenui ty HP 60 engine cooled through very small air inlet scale position underside cowl using ducting carry air upward Mick has 20-oz flywheel enclosed within spinnerfor balance aid re ducing idle speed engine never dies sudden opening throttle extra-large muffler brought engine noise down point near equal prop noise modeler heard comment really too quietin comparison fullsize plane little noisy CAP 20 Jean Rousseau win ner Ottawa returned place third Reno six Quarter Scale airplanes meet including other two French entries CAP 20L Rene Fouquereau CAP 21 Alain DePaux Both latter re duction belt drives troubled engine starting difficulties World Championships F4C class attracted seven biplanes seeking capitalize bonus awarded type Best advantage taken Swe dens Roy Nilsson DH Tiger Moth received 15% undercambered-airfoil biplane tail wheel Fourth fifth places taken biplane types US teams best flights made George Roses Curtiss Hawk P-6E same model come within half-point winning World Championships Ottawa two years pre viously other two US entries Earl Thompsons Focke-WuIf FW44-J Continued page 162 86 Model Aviation Highest placing American Stand-UT event UIITT acie Spezio Tu-Holer Actually Precision model 3rd static Druine Turbulent Josiiver ousea ar gine Finished polyurethane paint over Coverite weignec ij rn Konrad Oetiker Switzerland lowest static highest flight scores Bucker Jungmeister F4C Precision class Mick Reeves England spot landing short again winning World Championships innovetive Spitfire IX always near top competition Consistently smooth quiet flight Third place Stand-Off second high est flight score meet went Carlo Mapelli Italy Quarter Scale Corben Baby Ace 05 6OFSR engine swung 16-4 prop cut down 15/iin ADVERTISERS INDEX AMA Membership ASAE Ace RC Inc Aerolite Products Aeromarine Enterprises Aerotrend Products Air Design Airtronics side Front Cover ha Americas Hobby Center Andrews Aircraft Model Co Applied Design Corp BK ProductsBalsa USA Richard G Barron Bavarian Precision Products Behrens Plan Service Byron Originals Brownsell Flag & Decal Buckeye Balsa CB Associates California Model imports CarollnaTaffinder Charlies RC Goodies Chicago Expo Circus Hobbies George Clapp Consumers Hobby Corp Contempo Enterprises Coverite Cox Hobbies Jim Crocket Replicas DA Enterprises D & D Engineering DG Proiucts DGM industries DaCa Model Products Davey Systems Corp Jim Denaro Model Products Du-Bro Products Dynathrust Props Eastcraft Specialty Products Explorer Enterprises FAI Model Supply FHS Supply Flightilne Shirts ADVERTISERS INDEX 87 160 116 14 129 137 128 155 75 134 125 138 21 136 159 121 141 131 139 153 157 130 124 154 142-148 . 124 118-119 41 121 84-85 134 156 157 152 128 128 138 149 4 20 14 129 124 157 136 153 ADVERTISERS INDEX Flyline Models159 Fourmost Products116 Fox Mfg Co37 Full Command Systems156 Fults Tooling136 Futaba Corp America75 GTModels159 Gator RC Products160 Gemini Models Inc160 Carl Goldberg Models1 Gorham Model Products15 Great Lakes Model & Mold Co124 Great Planes Model Mfg Co150-151 Grish Brothers130 Hardware Systems Hayes Products DR Higgins Associates Hobby Barn Hobby Capitol RC Holby Hideaway Hobby Horn Hobby Lobby Hobby RadIo Shop Hobby Shack Horizon Model Crafts Homer Sales Indian City RC Club Indy RC Sales J-5 Enterprises K & B Mfg Co K & S Engineering Kin Craft Kraft RC Electronics Kraft Systems Kustom Kraftsmanship Left Bank RC Distributors Leisure Electronics Lltco Systems Lone Star Models MACS Products Majestic Models McDaniel RC Service Jim Messers Quality Model Products Midwest Products 120 39 113 114-115 10 159 159 6-9 160 139 . 149 78 117 122-123 161 158 137 157 117 - 157 158 19 131 156 154 125 137 133 ADVERTISERS INDEX Miniature Aircraft Supply117 Model Engineering Norwalk152 Model Merchant158 Model Rectifier Corp side Back Cover Mutchiers Hobbies126-127 Jerry Nelson & Co137 Nor-Cal Avionic140 Peck-Polymers128 PIca Products31 Dave Platt Models20 Plaza Hobby Craft162 Prestige Models113 Proctor Enterprises131 Prop Shop154 RAC Products137 RF Enterprises139 RJL IndustrieS134 RLF Products132 Repla-Tech International130 Rolley Model Products131 Roush Mfg120 Saf-Filte Models130 Sailplane Factory140 Satellite City163 Sheldons Hobby Shop125 Sig Mfg Co13 Bob Smith RC Aircraft132 Spring Air14 Sterling Models121 Sullivan Products47 Tatone Products78 Technopower Ii161 Top Flite Models2 Tower Hobbles135 Twinn-K Inc132 WE Technical services134 138 Waterlines Inc128 Williams Brothers132 Windsor Propeller Co140 World EnginesBack Cover CA Zaic Co129 Zenith Aviation Books5 NIck Ziroll Models130 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX often twists fuselage enough remove washin washout wing left thrust added thrust helps pull models nose around tighter left circle tends offset turn lost twisting motor stick As consequence often am able use much higher power models some other fliers might note tends out models pretty heavy need power What about winding motors Since rm about out space lets reserve next time lot say about topic very Dwayne Stephens 7253 Red Coat Drive Hamilton OH 45011 513-863-7325 important understand rubber works Bud Tenny PO Box 545 Richardson TX 75080 Scale WC/Wischers Continued page 86 Bob Wischers Ryan SCW both damaged crashes resulted radio problems An extremely sensitive scale used Bill Curtis 2473 E State Street Hermitage PA 16148 412 342-5740 day accurately measure weight model within 1/1000 gram Two planes German team found over 6kg maximum builders found weight could reduced removal such unnecessary items batteries lighting system would have produced insignificant benefit scoring Whereas static scores Stand-Off tightly grouped near top F4C 500-point spread between first sixth places sheer ingenuity design quali ty German team outstanding Detlef Draheims 1/5-scale Bolkow BO 207 Bachstelze used belt-reduction drive originated Maximizer reduction ratio changed 18 1 50 Webra Speed 60 could swing 16-8 prop Detlef made ow oil-and-air shock struts also separate servo trim stabilizer leading edge place elevator trim Josef Mayers 1/3-scale Druine Turbu lent another inconspicuous models awarded high static score wheel brakes operated individually combination depend ing upon rudder position Two full-scale airplanes being de veloped Reno-Stead Airport both pusher-propeller airplanes Lear-Fan advanced-technology project using two turbines drive single carbon-fibre prop second writing advertisers mention read about Model Aviation 162 Model Aviation Eastern US Helicopter Championship Modified NRCHA Format September 25-26 Sharon/Greenville PA Home 19741975 1976&1977 NR CHA NA TS Task competition beginner novice intermediate & expert Includes some aerobatics Preregistration thru September 17-$ 1000 September 8 thru competltion-$ 1500 registration forms information contact FULL*SIZE*PLANS 378Mr Spook Ill$500 RC Rugged craft sport flying Sport Pylon Novice/ Sportsman Aerobatics Use 4-ch 25-40 power No 379Monoboom AA$375 CL Large light superperforming Y2A Combat ship No 380Witch Hawk 500$375 FF Class NB Gas 15-23 power Nats winner No 381RB-59 Gladiator$725 RC Eye-catching tn-gear 1 5-power sportster Czechoslovakia uses 3-ch No 131Gee Bee Model Y 40-powered RC stand-off scale great old-time racers$500 No 168Simitar RC spectacolar flyisg wing t 5 nose-moanted tractor$300 No 225Ole Reliable RC 70 version 38 old-timer REM controls t 9- 25$425 No 239Blue Birds RC Ken Willards formation plane 4-ch tO$375 No 253Mitchell B-25 RC 4-ft /rA twin Ace foam panels Well- behaved$350 No 259chambermaid FF Bill Henno superlative rabber-powred scale winner$200 No 260Waco custom cabinRC Don Sralls scaler t 5-20 REM controls$400 No 262crashmaster CL Crash-proof trainer 2 sizest5-30 35-40$125 No 291cap 20 40-powered scale RC French acrobatic plane Low wing tail dragger 2 sheets $750 No 299GeeBee Sr Sportster RC -scale Haffke 91 power Prototype spas 30 ft 2 sheets $1175 No 302Mini F-16 RC Sarpolss 049 dacted fan sport tier 2-ch Balsa wings tail fsse strscture$275 No 307Pegasus RC Watsons giant super sailplane features flaps spoilers T-tail t 66 wingspan.$675 No 3101930 Fleet Biplane RC Sport Scale 35-40 4-ch Wingspan 56 t16 scale Two sheets$625 No 314Drake II RC Ken Willards flying boat 3-oh. 15-power Fly land removable gear$375 No 317Schweizer TG3-& RC Sport Scale Sailplane Jack Hiner has it-ft span 3-yb Two sheets$1200 No 323Super Voodoo CL Fast Combat John J0 features built-up wing fast construction wins$300 No 325commodore RCTenaco-class Old-Timer Oslan apdates Shereshaws classic 3-ch for29-powet 2 sh$1000 No 326Taylor cub RC Don Srclrs Schoolyard-Scale 049s 2-3 ch Spans 50 in$350 No 329Bristol5coutD RClltzschsPrecision-Scale-sizespan73 bipefor9t powet4 sheets$1650 No 332Zephyr RC Small 2-ch glider hand-laanch tow thermal slope soaring$200 No 335Sopwith Dolphin FF Bill Noonans Jumbo-Rubber scale great WW I-vintage biplane$175 No 337Super Akin-i chips RC Scale-like stunter 5-oh t smoke valve 40-power 2 sheets $700 No 338Rearwin Jr RC Dcc Mathews Sport Scale 4-ch 40-power Monoplane$525 No 340Mossie Stunner CL Twin 35-powered semi-scale based famous WW II Mosquito bomber$400 No 341Brown 8-2 RC Scale-like sport flier 4-oh t9-29-power Race Ovickee hot 25$500 No 343Wasp VI FF Mike Stoys Nats-winning Outdoor HLG$100 No 345La Jolita CLAA Scale Racer Class II also sport Mouse$100 No 347Space Shuttle RC Sport-Scale glider 2-ch launch mother plane$175 No 348Onestep RC Trainer has very forgiving tying qualities 3-ok 1 0-25 power$425 No 350Electric Spitfire RC Fun-Scale 15/25 electric 20-30 glow 3-oh spans 6 ft$750 No 353Eccitaniow CL Sleek 46-powered super-Stunter contest-proven$400 No 354Merlyn RC Giant tSS-in span Sailplane uses 3 RC channels$750 No 385Sentos-Dumontl4-bis RC Sport-Scale canard bipe fort 5-power 3-oh spans SB v2 sheets$575 No 356Maule Lunar Rocket RC -Scale spans 925 S-oh flaps t 2 engine$1200 No 358Pieces FF Indoor Easy B Rubber-power contest-winver W Van Gorder$100 No 359Black Widow RC Fcc-Scale twin two iOn 4-oh RC spans 58 WW II night fighter$675 No 360Dragon CL Slow Combat winner has foam wing uses 36-power$500 No 361Electric count Boy FF Record-holding dnration craft 02 motor$200 No 362Supercat RC Half-A Pylon Racer/sport tier Aileron elevator control Foam wing $200 No 363Tiger Rag CL Sport Stunter biplane 36-power$400 No 364 Neutron Star RC SleeK 40-size Pattern flierwith tail draggerretructs enclosed pipe bsilt-up $525 No 365 Seamaster RCWillards 40-size flying boatfor4-oh Strap-on gear makes landplanel 2 sheets $1100 No 366Truant FF Pert all-balsa beginners sport model 020-power$225 No 367P-39 Airacobra CL Sport-Scale uses water-cooled 45 engine mounted aft entension shaft$1275 No 368Space Shuttle II RC Larger improved version Hun glider 3-oh$550 No 369Super Star CL Semi-scale Stunter 35-power Easy build has contest-proven capability$550 No 370CAP-21 ftC Giant Scale French acrobatic craft spans 7 ft Osadra power 2 sheets $1400 No 371Strato-Streak RC Old-Timer version GarumCs famous 41 FF design power 2-oh$500 No 372Neighviow RC Low-wing fri-gear sportoter power 4-oh$500 No 373cassust II CL Profile Stunter 35 power Flaps$475 No 374Marissa FF Rubber-powered sportoter iv Golden Age tradition$300 No 375Snapshot Twin RC Worhhome utility/sport ship fortwin 35-40475 oh Foam wings lifts t 2 lb 2 shts$1100 No 376Auroroa RC Sport/Acrobatic flier 049-10 power uses 2 3-oh$350 No 377 Wingmaster CL Sport-Stunter Profile fuselage sheet wings in/taps $200 eg... 999 @@O 0@ Circle numbers planss wish order CC 131168 225 239 253 259 260 262 269 278 282 C 285 291299 302 307 310 314 317 323 325 326 328 332 335 337 338 340 341343 345 347 348 350353354355 364365366367 356358359360 368369370371 375 376 377 378 379 380 381 C C C e NAME Please print carefully Enclosed $ plane OMAC canard design using conventional engine Both given test flights present added interest excite ment Reno experience Reno RC Club headed Phil Abbinanti deserves credit having done operational tasks necessary successful inter national contest along Hill Country Flyers headed Ken Wardrip Other key figures included Betty Suzi Stream California have right proud part played international jury contest consisted Dennis Thumpston chair man England Helmuth Ziegler Switzerland John Grigg USA Judges Stand-Off event Roy Yates chief England Carl Mueller Canada Whitey Pritchard USA Pat Ray USA Steve Gray Canada Judges F4C World Championships Tony Aarts chief Netherlands George Buso USA Eric Coates England Andy Sheber USA Paul Jones Canada Contest Direc tor Aerocale 82 Monty Groves able assistance Con test Manager Patricia Groves Highly praised too Ken Barbara Wardrip operated fault less computer scoring system during contest contest adminis tration team including several AMA HQ staff produced smooth functioning contest despite hind-the-scenes problems Handling problems Under wood team Bob Rae Cathy received standing ovation closing banquet efforts name hospitality Highlighting Scale World Cham pionships simple dramatic opening awards ceremonies field featuring raising lowering flags playing national thems Adding spectacular backdrop finale full-scale antique air craft flown occasion includ ing Ford Tn-Motor two biplanes Swedish markings also represented contest model counterparts Overall weather good des pite some periods problems 361362363contest management highly praised 372373374the food plentiful lodging Cwas excellent great World CChampionships winners econsidered deserving eNot much could asked ex gpected STREET 0 CITY STATEZIP _________ Price includBs first-class postage Send chock money order payable Mode/Aviation AMA 815 Fifteenth St NW Washington Dc 20005 icCc9*t/Y*4/. * ty- ,090 164 Model Aviation 0 C C C C C C C 0 0 Full-size Plan List Available complete listing plans previously published magazine through No 364 may obtained free charge writing enclose stamped pre-addressed businesssize envelop Model Aviation 815 Fit teenth 5t NW Washington DC 20005