NATS RC SCALE participation down year though 1981 team selection year about 36 contestants competed about half number previous Nats competitions Quality particularly Sport Scale higher have seen Nats became evident flying portion program would decide outcome Three US team members would selected two classes Precision Scale Sport Scale compete 1982 World Championships could held USSR Reno NV depending upon FM choice Precision team will consist Bob Wischer Steve Sauger George Rose winners first second third places Nats Sport Scale team includes Phil Sibille Cliff Tacie Charlie Chambers qualified because Nats models conformed FAI Precision Scale four entries models used previous team trials included George Rose Curtiss Hawk P6-E Earl Thompson Focke WuIf FW44J Steve Sauger Lockheed Orion Bob Wischer Piel Beryl Sport Scale produced number new models seen previous Nats event proved become closely contested two Some new Sport Scale planes suffi ciently innovative warrant detailed descrip tion readers have indicated foremost interest Harold Parenti member 1980 Sport Scale team brought new Mitsubishi Zero A6M2 featured combination air liquid cooling its geared Webra 60 engine water jacket like used boat operation clamped cylinder head Ethylene glycol coolant pumped through jacket means gasoline-type Robart pump coolant flowed through plastic tube double-deck radiator mounted just above engine radiator made thin brass sheet embossed grooves form half shell Two plates soldered together create tubular pattern carried coolant through labyrinth path coolant passed through two layers radiator connected short lengths plastic fuel tube cylinder jacket Hal suggested radiators may required simple holding tank may sufficient Zero used glow heat supplied single 4 amp nickel-cadmium battery cell kept circuit throughout flight Engine exhaust carried bottom outlet cowl through twin corrugated tubes adapted bathroom plumbing fixtures plumbing enclosed fiberglass cowl made female mold hinges along side latched other allowed open maintenance plane covered silk given coats clear dope 34 Model Aviation Bob contends 1st-place-winning Plel Beryl should retired soonit has now won Its R C Sca 4th Nats has flown three World Champ elonshipa Weighs 106 lbs HP 60 silk/dope Bob & Dolly Wischer specifications Jim Smiths Church Midwing MA plans No 322 Prototypes small size lets fly Giant Scale 05 50 Coverlte/Hobbypoxy Steve Saugers Precision Scale Lockheed Orion won 2nd removed access engine compartment Harold Parenti flips prop new Japanese Zero A6M2 Special features liquid-cooled cylinder head geared Webra 80 4 servos landing gear obtain sequential operation door closing Hal famed low-altitude Split-S maneuverstried bit too low Zero clipped tall grass damaged Art Johnsons Twin Mustang P-82 latin Sport Scale Expert has become countrys top fliers builders Roger Geers Shrike Commander built nine monthsbegan Bridi kit Won 5th Sport Scale Expert Operating navand landing lights November1981 35 1982 US Precision Scale team L R George Rose Hawk P-SE Bob Wiacher Piel Beryi Steve Sauger Lockheed Orion George Roses famous Curtiss Hawk P-SE judged Best Show Toledo year won 3rd 81 Nats well Tom Cook brought super-spectacular twin-ducted-fan McDonnellDouglas F4 Phantom back again year Plagued problems Leonard McCoys Dornier Do23G fourtwins flown Nats year Very stable flier helped thick wing extra nose weight narmme tnamor wan ruuuruaruu uuuru rururun arIu sJrumflman rr-o ducted fan modelmi wiii first flown World Championships competition 82 WCs has Sport Scale event Phil Sibille placed 3rd Sport Scale Expert Supermarine Spit fire Mk IX win earns him spot US Sport Scale team Art Johnsons second 1st-place-winning model Curtiss Hawk P40 won Giant Scalethe large extremely heavy spinner nose weight pushed over Sport Scale weight limit CoI Sob Thackers scratch-built 1936 Caudron racerfliesfastfora Giant Scale model power its Webra 91 engine filler scraped between coats produce metallike surface Aluminum epoxy base coat final finish polyurethane rubbed wear points give worn weathered ap pearance Because panel lines must somewhat exag gerated Sport Scale model make visible 15-ft static viewing distance Hal made fish line epoxied place 115-lb Zero featured drop tank scale operations modified Pro-Line landing gear retraction Zero damaged caught deep grass bottom split-S maneuver Bob Karlsson also member 1980 US team new Grumman FM-2 Wildcat has authentically-operating retract landing gear system slow proto type requiring 20 seconds Bob modified servo get 2 revolutions output shaft limit switches sprung gear mechanism mostly fabricated stainless steel tubing silver soldered Engine geared Webra 60 model close FAI weight limit 6 kilograms 13 ildcat fuselage covered -oz fibergiass cloth resin wings tail surfaces silk dope overall finish authentic Randolph butyrate dope given weathered appearance simulate well-worn battle-weary fighter split flaps spring loaded will extend until speed has diminished similar system used cowl cooling flaps will remain open ground will close speed increases completely auto matic operation additional servo Bob has molded tires using Flexane 80-durometer material Because model weight close limit Bob uses large aluminum beer can fuel tank order save few ounces Earl Thompson several contestants enter event addition Precision Scale Focke Wuif Stiegiitz also entered Sport Scale quest place two teams second model large 3-in scale Benny Howard Ike racer built Paul Matss three-view drawings wingspan 76 Like previous two planes described also powered geared Webra 60 swinging 16-8 prop large finned heat sink fastened cylinder head preparation expected 900 1000F temperatures Segum Earls engine cowl made aluminum sheet punched louvers Nose bowl wheel pants molded fiber giass cockpit sufficiently complete Precision Scale instruments controls aluminum seat Also visible cockpit cover opens interior fuselage structure aluminum tubing assembled cy anoacrylate cement engine exhaust ducted muffler large plenum chamber maximum silencing Model structure covered silkspan followed silk nitrate dope two layer cover Final finish acrylic enamel panels metal prototype also metal model Functional stainless steel wires brace individual wing panels plug music wire center section joiners Vito Tomeo also entered two events Giant Scale Hawker Sea Fury rebuilt after last years Nats crash Sport Scale new Hawker Tempest V 15-lb Tempest too heavy eligible contention FAI competition 80-in span model built Bentleys Aero Modeller drawings uses modified Platt retract mechanisms Finish oz giass cloth resin automotive primer K&B paint large model flown 05 90 engine 15-6 prop features sliding canopy operating split flaps external fuel tank jettisoned Tempest badly damaged near end its first flight after stall low altitude Art Johnson another entrant two classes Giant Scale Curtiss Hawk P-40 P-82 Twin Mustang Sport Scale Both planes first-place winners classes Hawk recently featured construction article Model Builder magazine actually Sport Scale airplane necessary nose weight form extremely heavy spinner brings flying weight 155 lb places Giant class North American P-82 Twin Mustang having two en gines Sport Scale class 18 lb uses pair OS FSR 60 engines Performance both airplanes ultimate realism primarily because Art ex-military pilot wide experience types aircraft knows flight characteristics limitations capabilities planes uses knowledge closely simulate flight addition superb piloting skill Art also master craftsman combination certain result success Nats Robert Hoot Gibson astronaut pilot Chase next space shuttle landing flew 875-lb scratch-built General Dyhamics F-16 third place Sportsman class fiberglass fuselage laid up mold crafted himself 520 sq wing conventional foam balsa cover finished giass cloth resin Although model equipped flaperons landings can made flaps total five ducted fan airplanes Continued page 109 36 Model Aviation ari nompsons SportScale Howard Ike isa large model Abundantuse sheet aluminum may have caused unexplained radio glitches flight NASA Astronaut Bob Hoot Gibson scratch-bulltthis General Dynamics F-i 6 fighter Power K&B 75 Scozzi fan unit VIIO uumeOu nawer ea in-ury X5K5OTT run Power HP 60 belt-drive Maximizer gear-reduction unit Mario Yederlinics Fairchild PT-i g lifts off unevenly due gusty cross wind conditions first day flying Seguin Giant Scale Mike competed two contests prior entering Novice class Mats What follows slightly edited version what wrote dad left home 81 Nats did know what expect first large contest Im ashamed say stomach full butterflies first encounter AMA officials Sunday check-in Never have seen such good organization As stood transmitter processing line talked some other contestants became aware fact some seasoned fliers just nervous calmed down always knew people model aviation friendly after treatment received other contestants Natsthey greatest Master fliers Tony Frackowiak rebuilt Super tigre X-60 spare parts after failed first round would have out competition Officials judges other contestants helped have wonderful time will long remember Mike will have lot good reasons remem ber 1981 Nats After wrote what youve seen went finish second Novice class As usual have excuse finishing higher Expert class crashed Phoenix 8 two days prior leaving Nats due aileron servo failure Bill Johnston Krafts East ern Region Sales Manager loaned back up Super Curare After four test flights felt comfortable with Phoenix airplane wasnt excuse airplane engine performed flawlessly Mats wasnt excuse friend caller Frank Prestwood handled airplane call sheet perfectly wasnt excuse truth lot fliers flew better did again yearthats excuse Nats RC Scale/Wischers Con fin ued page 36 Nats Tom Cook returned remarkable McDonnell-Douglas F4 Phantom Tom plagued problems flights four rounds two flights reasonably successful drogue landing parachute outstanding feature landings deployed Spectator reacton told story cheered flight large twin-engined model popular crowd Charlie Chambers returned Mats Grumman F9F-8 Cougar model eligible place FAI team Charlie will first modeler fly ducted fan international championship competition Another modeler enter two events George Rose famous Hawk P6-E Preci sion Scale craft flown 1982 World Championships second model Sport Scale Lockheed P-38 Lightning George modified engine rotate opposite direction prototype found feature really helpful carefully peaked engines tachometer before takeoff Col Bob Thacker can always depended upon appear Mats unusual airplane year brought Giant Scale model 1936 Caudron racer Webra 91 engine 104-lb model covered FabriKote finished K&B epoxy used 7A c3c4fane e 7 Iory ac YOUR R/C SOARING HEADQUARTERS Imported domestic Sailplane kits over 75 designs choose Ultra-Trick soaring hardware including linkages flaps ailerons spoilers mixers releasable hooks skids canopies canopy latches wing joiner blade systems Sailplane retracts 5 types choose including air electric Shempp-Hirth scissor-type spoilers also new type trailing edge airbrake/spoiler Bremaklappen Complete line launching equipment suppliesWinchmaster Fabtec TSF products thing dont stack LIFT PO Box 341 Red Lion PA 17356 717 246-2263 900 am 900 pm EST November1981 109 1981 WINTER NATIONALS Held year TUCSOn Arizona November 27 28 & 29 1981 AMA Sanctioned CASHTROPHIESPRIZES EVENTS TO BE ENTERED RADIO CONTROLCONTROL LINE PtO NooiceSIooRatPaiog NOace PSttflSPONSORED BY~ LI, Carter II Leading RIC Magazinespotiecortpa,avac Eopert PO,ern Mactet Model IndustryAetobajc Prep,jon ScaleComba Spot Scale510 Combat Sian Scale year 1981 Winter Nationals will held Tucson Only few minutes motels restaurants great flying site 1000 foot runway Spend Thanksgiving weekend sunny Tucson ILast 3 years temperature plus 8001 Write contest information ENTRY AND PRE-REGISTRATION FORM Entries postmarked after Nov20 subject $1000 late fee SEND TO Tucson Winter NationalsNAME Norm Newhouse 9255 E 26th streetADDRESS Tucson Arizona 85710CITY______ STATE ______ ZIP_____ 1-602-885-1053 AMA Number_________ Registration Fee $15 plus $500 event Registration$15 Pattern ___________________$ 5 _______ _______ MHz lolasol Giant Scale ___________________$ 5 ________ ________ MHZ Sport Scale _________________$ 5 ________ ________ MHz AMA Scale _______________$ 5 _______ MHz Control Line petexent$ ___ Important When events full earliest post mark will determine acceptance Complete information packet schedule contest information hotel accommodations will mailed upon receipt pre-reg ist ration form fees IPEGAIN Losing control can night mare wrong response given command can take its toll model nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience / Fuaba 1925 E Creighton Road N N TR H modeling radio repair So avoid inflated repair costs undue service time Radio South fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control VISA LI KIKT ne Pensacola FL 32504 904/478-6745 SUPER SCALE PLANS ORGANIZED 1/4 scale F9C 2 Sparrow Hawk 2150 11/2 scale Grumman Duck 19504 MAG FILES $495 1 3/4 scale Vought Kingfisher 1950 5496 pIus Si 00 Add $200 postage & handling oiPOsla9eandha~dlrngIe shipped tube Send 50 brochure DUSThIES PO BOX 388-K SMITH PLANS 9422 N Pairway Blvd R NH 03820 Sun Lakes AZ 85224 Williams Brothers plastic model part scale documentation Flights spectacular faster usually expected Giant class Rockwell Shrike Commander built Bridi kit entry Roger Geers four twins Nats model finished high gloss wiht K&B Superpoxy Rogers flights very fast actually necessity safe flying 165 lb 795-in wingspan plane Engines OS 40 FSRs used landing naviga tional lights scale operation plane flnnt hA n fInzt~r II YUUI jou nere s mat wii fll5 J cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty COMPLETE MODIFIED 37 ENGINE Factory Bench-tested udes following HI-CARBON FORGEDONEPIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi ftAaNuIrnI fl 00 flCflflINIfl nfl rnnNrt taxied takeoff position turned face judges lights turned momentarily being stopped Du-Bro nose wheel brake Second place Sport Scale Expert class won Leonard McCoy twin-engined Dornier Do23G built Don Srulls plans contrast some previous Nats twin IWhen writing advertisers mention reed about Model Aviation engines detriment due unreliability twins year successful Nats RC Pylon/Hager Continued page 41 Bill Hager Tom Christopher Dave Pearce Eric Ristrim Ron Gilman held fast time 11656 round five Tom Christopher gone 11522 fast time down three-way tie first Tom Christopher Ron Gilman Eric Ristrim followed Bill Hager Kent Nogy down two points time everybody figured out weather everyone going very fast round nine Tom Christopher Ron Gilman still top 36 points Tom dropped low time 11518 As went last day everyone trying get ready last chance Round 12 saw Ron Gilman 0 What way go put Tom Christopher first place 48 points Eric Ristrim second 47 points Ron Gilman third 44 points Rusty VanBaren fourth Bill Hager fifth Round 13 match Ron Gilman Tom Christopher two about fastest people Ron beat Tom wouldnt change standings neither wanted lose race Come heat eight eyes race course starter Bruce Richmond dropped flag start what best races have ever seen seldom 20 feet between two competitors airplanes crossed finish line Tom just few feet ahead times 11144 Tom Christopher 11155 Ron Gilman would like go fast still come second Well may have guessed Tom new Nats Formula Champion Considering people raced against no easy races Continued page 114 110 Model Aviation D DOIfl nun Send check MO win snip uuu Ufl MOO 4VU snipping & Modified 37 Package $18995 Roper 19 Still best value big-scale engines4995 19 Factory-demo Special 3495 Props 122 24-101 Now Avail Special 119 Eng 5995 NOTE mounts & hubs same price both engines
Edition: Model Aviation - 1981/11
Page Numbers: 34, 35, 36, 109, 110
NATS RC SCALE participation down year though 1981 team selection year about 36 contestants competed about half number previous Nats competitions Quality particularly Sport Scale higher have seen Nats became evident flying portion program would decide outcome Three US team members would selected two classes Precision Scale Sport Scale compete 1982 World Championships could held USSR Reno NV depending upon FM choice Precision team will consist Bob Wischer Steve Sauger George Rose winners first second third places Nats Sport Scale team includes Phil Sibille Cliff Tacie Charlie Chambers qualified because Nats models conformed FAI Precision Scale four entries models used previous team trials included George Rose Curtiss Hawk P6-E Earl Thompson Focke WuIf FW44J Steve Sauger Lockheed Orion Bob Wischer Piel Beryl Sport Scale produced number new models seen previous Nats event proved become closely contested two Some new Sport Scale planes suffi ciently innovative warrant detailed descrip tion readers have indicated foremost interest Harold Parenti member 1980 Sport Scale team brought new Mitsubishi Zero A6M2 featured combination air liquid cooling its geared Webra 60 engine water jacket like used boat operation clamped cylinder head Ethylene glycol coolant pumped through jacket means gasoline-type Robart pump coolant flowed through plastic tube double-deck radiator mounted just above engine radiator made thin brass sheet embossed grooves form half shell Two plates soldered together create tubular pattern carried coolant through labyrinth path coolant passed through two layers radiator connected short lengths plastic fuel tube cylinder jacket Hal suggested radiators may required simple holding tank may sufficient Zero used glow heat supplied single 4 amp nickel-cadmium battery cell kept circuit throughout flight Engine exhaust carried bottom outlet cowl through twin corrugated tubes adapted bathroom plumbing fixtures plumbing enclosed fiberglass cowl made female mold hinges along side latched other allowed open maintenance plane covered silk given coats clear dope 34 Model Aviation Bob contends 1st-place-winning Plel Beryl should retired soonit has now won Its R C Sca 4th Nats has flown three World Champ elonshipa Weighs 106 lbs HP 60 silk/dope Bob & Dolly Wischer specifications Jim Smiths Church Midwing MA plans No 322 Prototypes small size lets fly Giant Scale 05 50 Coverlte/Hobbypoxy Steve Saugers Precision Scale Lockheed Orion won 2nd removed access engine compartment Harold Parenti flips prop new Japanese Zero A6M2 Special features liquid-cooled cylinder head geared Webra 80 4 servos landing gear obtain sequential operation door closing Hal famed low-altitude Split-S maneuverstried bit too low Zero clipped tall grass damaged Art Johnsons Twin Mustang P-82 latin Sport Scale Expert has become countrys top fliers builders Roger Geers Shrike Commander built nine monthsbegan Bridi kit Won 5th Sport Scale Expert Operating navand landing lights November1981 35 1982 US Precision Scale team L R George Rose Hawk P-SE Bob Wiacher Piel Beryi Steve Sauger Lockheed Orion George Roses famous Curtiss Hawk P-SE judged Best Show Toledo year won 3rd 81 Nats well Tom Cook brought super-spectacular twin-ducted-fan McDonnellDouglas F4 Phantom back again year Plagued problems Leonard McCoys Dornier Do23G fourtwins flown Nats year Very stable flier helped thick wing extra nose weight narmme tnamor wan ruuuruaruu uuuru rururun arIu sJrumflman rr-o ducted fan modelmi wiii first flown World Championships competition 82 WCs has Sport Scale event Phil Sibille placed 3rd Sport Scale Expert Supermarine Spit fire Mk IX win earns him spot US Sport Scale team Art Johnsons second 1st-place-winning model Curtiss Hawk P40 won Giant Scalethe large extremely heavy spinner nose weight pushed over Sport Scale weight limit CoI Sob Thackers scratch-built 1936 Caudron racerfliesfastfora Giant Scale model power its Webra 91 engine filler scraped between coats produce metallike surface Aluminum epoxy base coat final finish polyurethane rubbed wear points give worn weathered ap pearance Because panel lines must somewhat exag gerated Sport Scale model make visible 15-ft static viewing distance Hal made fish line epoxied place 115-lb Zero featured drop tank scale operations modified Pro-Line landing gear retraction Zero damaged caught deep grass bottom split-S maneuver Bob Karlsson also member 1980 US team new Grumman FM-2 Wildcat has authentically-operating retract landing gear system slow proto type requiring 20 seconds Bob modified servo get 2 revolutions output shaft limit switches sprung gear mechanism mostly fabricated stainless steel tubing silver soldered Engine geared Webra 60 model close FAI weight limit 6 kilograms 13 ildcat fuselage covered -oz fibergiass cloth resin wings tail surfaces silk dope overall finish authentic Randolph butyrate dope given weathered appearance simulate well-worn battle-weary fighter split flaps spring loaded will extend until speed has diminished similar system used cowl cooling flaps will remain open ground will close speed increases completely auto matic operation additional servo Bob has molded tires using Flexane 80-durometer material Because model weight close limit Bob uses large aluminum beer can fuel tank order save few ounces Earl Thompson several contestants enter event addition Precision Scale Focke Wuif Stiegiitz also entered Sport Scale quest place two teams second model large 3-in scale Benny Howard Ike racer built Paul Matss three-view drawings wingspan 76 Like previous two planes described also powered geared Webra 60 swinging 16-8 prop large finned heat sink fastened cylinder head preparation expected 900 1000F temperatures Segum Earls engine cowl made aluminum sheet punched louvers Nose bowl wheel pants molded fiber giass cockpit sufficiently complete Precision Scale instruments controls aluminum seat Also visible cockpit cover opens interior fuselage structure aluminum tubing assembled cy anoacrylate cement engine exhaust ducted muffler large plenum chamber maximum silencing Model structure covered silkspan followed silk nitrate dope two layer cover Final finish acrylic enamel panels metal prototype also metal model Functional stainless steel wires brace individual wing panels plug music wire center section joiners Vito Tomeo also entered two events Giant Scale Hawker Sea Fury rebuilt after last years Nats crash Sport Scale new Hawker Tempest V 15-lb Tempest too heavy eligible contention FAI competition 80-in span model built Bentleys Aero Modeller drawings uses modified Platt retract mechanisms Finish oz giass cloth resin automotive primer K&B paint large model flown 05 90 engine 15-6 prop features sliding canopy operating split flaps external fuel tank jettisoned Tempest badly damaged near end its first flight after stall low altitude Art Johnson another entrant two classes Giant Scale Curtiss Hawk P-40 P-82 Twin Mustang Sport Scale Both planes first-place winners classes Hawk recently featured construction article Model Builder magazine actually Sport Scale airplane necessary nose weight form extremely heavy spinner brings flying weight 155 lb places Giant class North American P-82 Twin Mustang having two en gines Sport Scale class 18 lb uses pair OS FSR 60 engines Performance both airplanes ultimate realism primarily because Art ex-military pilot wide experience types aircraft knows flight characteristics limitations capabilities planes uses knowledge closely simulate flight addition superb piloting skill Art also master craftsman combination certain result success Nats Robert Hoot Gibson astronaut pilot Chase next space shuttle landing flew 875-lb scratch-built General Dyhamics F-16 third place Sportsman class fiberglass fuselage laid up mold crafted himself 520 sq wing conventional foam balsa cover finished giass cloth resin Although model equipped flaperons landings can made flaps total five ducted fan airplanes Continued page 109 36 Model Aviation ari nompsons SportScale Howard Ike isa large model Abundantuse sheet aluminum may have caused unexplained radio glitches flight NASA Astronaut Bob Hoot Gibson scratch-bulltthis General Dynamics F-i 6 fighter Power K&B 75 Scozzi fan unit VIIO uumeOu nawer ea in-ury X5K5OTT run Power HP 60 belt-drive Maximizer gear-reduction unit Mario Yederlinics Fairchild PT-i g lifts off unevenly due gusty cross wind conditions first day flying Seguin Giant Scale Mike competed two contests prior entering Novice class Mats What follows slightly edited version what wrote dad left home 81 Nats did know what expect first large contest Im ashamed say stomach full butterflies first encounter AMA officials Sunday check-in Never have seen such good organization As stood transmitter processing line talked some other contestants became aware fact some seasoned fliers just nervous calmed down always knew people model aviation friendly after treatment received other contestants Natsthey greatest Master fliers Tony Frackowiak rebuilt Super tigre X-60 spare parts after failed first round would have out competition Officials judges other contestants helped have wonderful time will long remember Mike will have lot good reasons remem ber 1981 Nats After wrote what youve seen went finish second Novice class As usual have excuse finishing higher Expert class crashed Phoenix 8 two days prior leaving Nats due aileron servo failure Bill Johnston Krafts East ern Region Sales Manager loaned back up Super Curare After four test flights felt comfortable with Phoenix airplane wasnt excuse airplane engine performed flawlessly Mats wasnt excuse friend caller Frank Prestwood handled airplane call sheet perfectly wasnt excuse truth lot fliers flew better did again yearthats excuse Nats RC Scale/Wischers Con fin ued page 36 Nats Tom Cook returned remarkable McDonnell-Douglas F4 Phantom Tom plagued problems flights four rounds two flights reasonably successful drogue landing parachute outstanding feature landings deployed Spectator reacton told story cheered flight large twin-engined model popular crowd Charlie Chambers returned Mats Grumman F9F-8 Cougar model eligible place FAI team Charlie will first modeler fly ducted fan international championship competition Another modeler enter two events George Rose famous Hawk P6-E Preci sion Scale craft flown 1982 World Championships second model Sport Scale Lockheed P-38 Lightning George modified engine rotate opposite direction prototype found feature really helpful carefully peaked engines tachometer before takeoff Col Bob Thacker can always depended upon appear Mats unusual airplane year brought Giant Scale model 1936 Caudron racer Webra 91 engine 104-lb model covered FabriKote finished K&B epoxy used 7A c3c4fane e 7 Iory ac YOUR R/C SOARING HEADQUARTERS Imported domestic Sailplane kits over 75 designs choose Ultra-Trick soaring hardware including linkages flaps ailerons spoilers mixers releasable hooks skids canopies canopy latches wing joiner blade systems Sailplane retracts 5 types choose including air electric Shempp-Hirth scissor-type spoilers also new type trailing edge airbrake/spoiler Bremaklappen Complete line launching equipment suppliesWinchmaster Fabtec TSF products thing dont stack LIFT PO Box 341 Red Lion PA 17356 717 246-2263 900 am 900 pm EST November1981 109 1981 WINTER NATIONALS Held year TUCSOn Arizona November 27 28 & 29 1981 AMA Sanctioned CASHTROPHIESPRIZES EVENTS TO BE ENTERED RADIO CONTROLCONTROL LINE PtO NooiceSIooRatPaiog NOace PSttflSPONSORED BY~ LI, Carter II Leading RIC Magazinespotiecortpa,avac Eopert PO,ern Mactet Model IndustryAetobajc Prep,jon ScaleComba Spot Scale510 Combat Sian Scale year 1981 Winter Nationals will held Tucson Only few minutes motels restaurants great flying site 1000 foot runway Spend Thanksgiving weekend sunny Tucson ILast 3 years temperature plus 8001 Write contest information ENTRY AND PRE-REGISTRATION FORM Entries postmarked after Nov20 subject $1000 late fee SEND TO Tucson Winter NationalsNAME Norm Newhouse 9255 E 26th streetADDRESS Tucson Arizona 85710CITY______ STATE ______ ZIP_____ 1-602-885-1053 AMA Number_________ Registration Fee $15 plus $500 event Registration$15 Pattern ___________________$ 5 _______ _______ MHz lolasol Giant Scale ___________________$ 5 ________ ________ MHZ Sport Scale _________________$ 5 ________ ________ MHz AMA Scale _______________$ 5 _______ MHz Control Line petexent$ ___ Important When events full earliest post mark will determine acceptance Complete information packet schedule contest information hotel accommodations will mailed upon receipt pre-reg ist ration form fees IPEGAIN Losing control can night mare wrong response given command can take its toll model nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience / Fuaba 1925 E Creighton Road N N TR H modeling radio repair So avoid inflated repair costs undue service time Radio South fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control VISA LI KIKT ne Pensacola FL 32504 904/478-6745 SUPER SCALE PLANS ORGANIZED 1/4 scale F9C 2 Sparrow Hawk 2150 11/2 scale Grumman Duck 19504 MAG FILES $495 1 3/4 scale Vought Kingfisher 1950 5496 pIus Si 00 Add $200 postage & handling oiPOsla9eandha~dlrngIe shipped tube Send 50 brochure DUSThIES PO BOX 388-K SMITH PLANS 9422 N Pairway Blvd R NH 03820 Sun Lakes AZ 85224 Williams Brothers plastic model part scale documentation Flights spectacular faster usually expected Giant class Rockwell Shrike Commander built Bridi kit entry Roger Geers four twins Nats model finished high gloss wiht K&B Superpoxy Rogers flights very fast actually necessity safe flying 165 lb 795-in wingspan plane Engines OS 40 FSRs used landing naviga tional lights scale operation plane flnnt hA n fInzt~r II YUUI jou nere s mat wii fll5 J cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty COMPLETE MODIFIED 37 ENGINE Factory Bench-tested udes following HI-CARBON FORGEDONEPIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi ftAaNuIrnI fl 00 flCflflINIfl nfl rnnNrt taxied takeoff position turned face judges lights turned momentarily being stopped Du-Bro nose wheel brake Second place Sport Scale Expert class won Leonard McCoy twin-engined Dornier Do23G built Don Srulls plans contrast some previous Nats twin IWhen writing advertisers mention reed about Model Aviation engines detriment due unreliability twins year successful Nats RC Pylon/Hager Continued page 41 Bill Hager Tom Christopher Dave Pearce Eric Ristrim Ron Gilman held fast time 11656 round five Tom Christopher gone 11522 fast time down three-way tie first Tom Christopher Ron Gilman Eric Ristrim followed Bill Hager Kent Nogy down two points time everybody figured out weather everyone going very fast round nine Tom Christopher Ron Gilman still top 36 points Tom dropped low time 11518 As went last day everyone trying get ready last chance Round 12 saw Ron Gilman 0 What way go put Tom Christopher first place 48 points Eric Ristrim second 47 points Ron Gilman third 44 points Rusty VanBaren fourth Bill Hager fifth Round 13 match Ron Gilman Tom Christopher two about fastest people Ron beat Tom wouldnt change standings neither wanted lose race Come heat eight eyes race course starter Bruce Richmond dropped flag start what best races have ever seen seldom 20 feet between two competitors airplanes crossed finish line Tom just few feet ahead times 11144 Tom Christopher 11155 Ron Gilman would like go fast still come second Well may have guessed Tom new Nats Formula Champion Considering people raced against no easy races Continued page 114 110 Model Aviation D DOIfl nun Send check MO win snip uuu Ufl MOO 4VU snipping & Modified 37 Package $18995 Roper 19 Still best value big-scale engines4995 19 Factory-demo Special 3495 Props 122 24-101 Now Avail Special 119 Eng 5995 NOTE mounts & hubs same price both engines
Edition: Model Aviation - 1981/11
Page Numbers: 34, 35, 36, 109, 110
NATS RC SCALE participation down year though 1981 team selection year about 36 contestants competed about half number previous Nats competitions Quality particularly Sport Scale higher have seen Nats became evident flying portion program would decide outcome Three US team members would selected two classes Precision Scale Sport Scale compete 1982 World Championships could held USSR Reno NV depending upon FM choice Precision team will consist Bob Wischer Steve Sauger George Rose winners first second third places Nats Sport Scale team includes Phil Sibille Cliff Tacie Charlie Chambers qualified because Nats models conformed FAI Precision Scale four entries models used previous team trials included George Rose Curtiss Hawk P6-E Earl Thompson Focke WuIf FW44J Steve Sauger Lockheed Orion Bob Wischer Piel Beryl Sport Scale produced number new models seen previous Nats event proved become closely contested two Some new Sport Scale planes suffi ciently innovative warrant detailed descrip tion readers have indicated foremost interest Harold Parenti member 1980 Sport Scale team brought new Mitsubishi Zero A6M2 featured combination air liquid cooling its geared Webra 60 engine water jacket like used boat operation clamped cylinder head Ethylene glycol coolant pumped through jacket means gasoline-type Robart pump coolant flowed through plastic tube double-deck radiator mounted just above engine radiator made thin brass sheet embossed grooves form half shell Two plates soldered together create tubular pattern carried coolant through labyrinth path coolant passed through two layers radiator connected short lengths plastic fuel tube cylinder jacket Hal suggested radiators may required simple holding tank may sufficient Zero used glow heat supplied single 4 amp nickel-cadmium battery cell kept circuit throughout flight Engine exhaust carried bottom outlet cowl through twin corrugated tubes adapted bathroom plumbing fixtures plumbing enclosed fiberglass cowl made female mold hinges along side latched other allowed open maintenance plane covered silk given coats clear dope 34 Model Aviation Bob contends 1st-place-winning Plel Beryl should retired soonit has now won Its R C Sca 4th Nats has flown three World Champ elonshipa Weighs 106 lbs HP 60 silk/dope Bob & Dolly Wischer specifications Jim Smiths Church Midwing MA plans No 322 Prototypes small size lets fly Giant Scale 05 50 Coverlte/Hobbypoxy Steve Saugers Precision Scale Lockheed Orion won 2nd removed access engine compartment Harold Parenti flips prop new Japanese Zero A6M2 Special features liquid-cooled cylinder head geared Webra 80 4 servos landing gear obtain sequential operation door closing Hal famed low-altitude Split-S maneuverstried bit too low Zero clipped tall grass damaged Art Johnsons Twin Mustang P-82 latin Sport Scale Expert has become countrys top fliers builders Roger Geers Shrike Commander built nine monthsbegan Bridi kit Won 5th Sport Scale Expert Operating navand landing lights November1981 35 1982 US Precision Scale team L R George Rose Hawk P-SE Bob Wiacher Piel Beryi Steve Sauger Lockheed Orion George Roses famous Curtiss Hawk P-SE judged Best Show Toledo year won 3rd 81 Nats well Tom Cook brought super-spectacular twin-ducted-fan McDonnellDouglas F4 Phantom back again year Plagued problems Leonard McCoys Dornier Do23G fourtwins flown Nats year Very stable flier helped thick wing extra nose weight narmme tnamor wan ruuuruaruu uuuru rururun arIu sJrumflman rr-o ducted fan modelmi wiii first flown World Championships competition 82 WCs has Sport Scale event Phil Sibille placed 3rd Sport Scale Expert Supermarine Spit fire Mk IX win earns him spot US Sport Scale team Art Johnsons second 1st-place-winning model Curtiss Hawk P40 won Giant Scalethe large extremely heavy spinner nose weight pushed over Sport Scale weight limit CoI Sob Thackers scratch-built 1936 Caudron racerfliesfastfora Giant Scale model power its Webra 91 engine filler scraped between coats produce metallike surface Aluminum epoxy base coat final finish polyurethane rubbed wear points give worn weathered ap pearance Because panel lines must somewhat exag gerated Sport Scale model make visible 15-ft static viewing distance Hal made fish line epoxied place 115-lb Zero featured drop tank scale operations modified Pro-Line landing gear retraction Zero damaged caught deep grass bottom split-S maneuver Bob Karlsson also member 1980 US team new Grumman FM-2 Wildcat has authentically-operating retract landing gear system slow proto type requiring 20 seconds Bob modified servo get 2 revolutions output shaft limit switches sprung gear mechanism mostly fabricated stainless steel tubing silver soldered Engine geared Webra 60 model close FAI weight limit 6 kilograms 13 ildcat fuselage covered -oz fibergiass cloth resin wings tail surfaces silk dope overall finish authentic Randolph butyrate dope given weathered appearance simulate well-worn battle-weary fighter split flaps spring loaded will extend until speed has diminished similar system used cowl cooling flaps will remain open ground will close speed increases completely auto matic operation additional servo Bob has molded tires using Flexane 80-durometer material Because model weight close limit Bob uses large aluminum beer can fuel tank order save few ounces Earl Thompson several contestants enter event addition Precision Scale Focke Wuif Stiegiitz also entered Sport Scale quest place two teams second model large 3-in scale Benny Howard Ike racer built Paul Matss three-view drawings wingspan 76 Like previous two planes described also powered geared Webra 60 swinging 16-8 prop large finned heat sink fastened cylinder head preparation expected 900 1000F temperatures Segum Earls engine cowl made aluminum sheet punched louvers Nose bowl wheel pants molded fiber giass cockpit sufficiently complete Precision Scale instruments controls aluminum seat Also visible cockpit cover opens interior fuselage structure aluminum tubing assembled cy anoacrylate cement engine exhaust ducted muffler large plenum chamber maximum silencing Model structure covered silkspan followed silk nitrate dope two layer cover Final finish acrylic enamel panels metal prototype also metal model Functional stainless steel wires brace individual wing panels plug music wire center section joiners Vito Tomeo also entered two events Giant Scale Hawker Sea Fury rebuilt after last years Nats crash Sport Scale new Hawker Tempest V 15-lb Tempest too heavy eligible contention FAI competition 80-in span model built Bentleys Aero Modeller drawings uses modified Platt retract mechanisms Finish oz giass cloth resin automotive primer K&B paint large model flown 05 90 engine 15-6 prop features sliding canopy operating split flaps external fuel tank jettisoned Tempest badly damaged near end its first flight after stall low altitude Art Johnson another entrant two classes Giant Scale Curtiss Hawk P-40 P-82 Twin Mustang Sport Scale Both planes first-place winners classes Hawk recently featured construction article Model Builder magazine actually Sport Scale airplane necessary nose weight form extremely heavy spinner brings flying weight 155 lb places Giant class North American P-82 Twin Mustang having two en gines Sport Scale class 18 lb uses pair OS FSR 60 engines Performance both airplanes ultimate realism primarily because Art ex-military pilot wide experience types aircraft knows flight characteristics limitations capabilities planes uses knowledge closely simulate flight addition superb piloting skill Art also master craftsman combination certain result success Nats Robert Hoot Gibson astronaut pilot Chase next space shuttle landing flew 875-lb scratch-built General Dyhamics F-16 third place Sportsman class fiberglass fuselage laid up mold crafted himself 520 sq wing conventional foam balsa cover finished giass cloth resin Although model equipped flaperons landings can made flaps total five ducted fan airplanes Continued page 109 36 Model Aviation ari nompsons SportScale Howard Ike isa large model Abundantuse sheet aluminum may have caused unexplained radio glitches flight NASA Astronaut Bob Hoot Gibson scratch-bulltthis General Dynamics F-i 6 fighter Power K&B 75 Scozzi fan unit VIIO uumeOu nawer ea in-ury X5K5OTT run Power HP 60 belt-drive Maximizer gear-reduction unit Mario Yederlinics Fairchild PT-i g lifts off unevenly due gusty cross wind conditions first day flying Seguin Giant Scale Mike competed two contests prior entering Novice class Mats What follows slightly edited version what wrote dad left home 81 Nats did know what expect first large contest Im ashamed say stomach full butterflies first encounter AMA officials Sunday check-in Never have seen such good organization As stood transmitter processing line talked some other contestants became aware fact some seasoned fliers just nervous calmed down always knew people model aviation friendly after treatment received other contestants Natsthey greatest Master fliers Tony Frackowiak rebuilt Super tigre X-60 spare parts after failed first round would have out competition Officials judges other contestants helped have wonderful time will long remember Mike will have lot good reasons remem ber 1981 Nats After wrote what youve seen went finish second Novice class As usual have excuse finishing higher Expert class crashed Phoenix 8 two days prior leaving Nats due aileron servo failure Bill Johnston Krafts East ern Region Sales Manager loaned back up Super Curare After four test flights felt comfortable with Phoenix airplane wasnt excuse airplane engine performed flawlessly Mats wasnt excuse friend caller Frank Prestwood handled airplane call sheet perfectly wasnt excuse truth lot fliers flew better did again yearthats excuse Nats RC Scale/Wischers Con fin ued page 36 Nats Tom Cook returned remarkable McDonnell-Douglas F4 Phantom Tom plagued problems flights four rounds two flights reasonably successful drogue landing parachute outstanding feature landings deployed Spectator reacton told story cheered flight large twin-engined model popular crowd Charlie Chambers returned Mats Grumman F9F-8 Cougar model eligible place FAI team Charlie will first modeler fly ducted fan international championship competition Another modeler enter two events George Rose famous Hawk P6-E Preci sion Scale craft flown 1982 World Championships second model Sport Scale Lockheed P-38 Lightning George modified engine rotate opposite direction prototype found feature really helpful carefully peaked engines tachometer before takeoff Col Bob Thacker can always depended upon appear Mats unusual airplane year brought Giant Scale model 1936 Caudron racer Webra 91 engine 104-lb model covered FabriKote finished K&B epoxy used 7A c3c4fane e 7 Iory ac YOUR R/C SOARING HEADQUARTERS Imported domestic Sailplane kits over 75 designs choose Ultra-Trick soaring hardware including linkages flaps ailerons spoilers mixers releasable hooks skids canopies canopy latches wing joiner blade systems Sailplane retracts 5 types choose including air electric Shempp-Hirth scissor-type spoilers also new type trailing edge airbrake/spoiler Bremaklappen Complete line launching equipment suppliesWinchmaster Fabtec TSF products thing dont stack LIFT PO Box 341 Red Lion PA 17356 717 246-2263 900 am 900 pm EST November1981 109 1981 WINTER NATIONALS Held year TUCSOn Arizona November 27 28 & 29 1981 AMA Sanctioned CASHTROPHIESPRIZES EVENTS TO BE ENTERED RADIO CONTROLCONTROL LINE PtO NooiceSIooRatPaiog NOace PSttflSPONSORED BY~ LI, Carter II Leading RIC Magazinespotiecortpa,avac Eopert PO,ern Mactet Model IndustryAetobajc Prep,jon ScaleComba Spot Scale510 Combat Sian Scale year 1981 Winter Nationals will held Tucson Only few minutes motels restaurants great flying site 1000 foot runway Spend Thanksgiving weekend sunny Tucson ILast 3 years temperature plus 8001 Write contest information ENTRY AND PRE-REGISTRATION FORM Entries postmarked after Nov20 subject $1000 late fee SEND TO Tucson Winter NationalsNAME Norm Newhouse 9255 E 26th streetADDRESS Tucson Arizona 85710CITY______ STATE ______ ZIP_____ 1-602-885-1053 AMA Number_________ Registration Fee $15 plus $500 event Registration$15 Pattern ___________________$ 5 _______ _______ MHz lolasol Giant Scale ___________________$ 5 ________ ________ MHZ Sport Scale _________________$ 5 ________ ________ MHz AMA Scale _______________$ 5 _______ MHz Control Line petexent$ ___ Important When events full earliest post mark will determine acceptance Complete information packet schedule contest information hotel accommodations will mailed upon receipt pre-reg ist ration form fees IPEGAIN Losing control can night mare wrong response given command can take its toll model nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience / Fuaba 1925 E Creighton Road N N TR H modeling radio repair So avoid inflated repair costs undue service time Radio South fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control VISA LI KIKT ne Pensacola FL 32504 904/478-6745 SUPER SCALE PLANS ORGANIZED 1/4 scale F9C 2 Sparrow Hawk 2150 11/2 scale Grumman Duck 19504 MAG FILES $495 1 3/4 scale Vought Kingfisher 1950 5496 pIus Si 00 Add $200 postage & handling oiPOsla9eandha~dlrngIe shipped tube Send 50 brochure DUSThIES PO BOX 388-K SMITH PLANS 9422 N Pairway Blvd R NH 03820 Sun Lakes AZ 85224 Williams Brothers plastic model part scale documentation Flights spectacular faster usually expected Giant class Rockwell Shrike Commander built Bridi kit entry Roger Geers four twins Nats model finished high gloss wiht K&B Superpoxy Rogers flights very fast actually necessity safe flying 165 lb 795-in wingspan plane Engines OS 40 FSRs used landing naviga tional lights scale operation plane flnnt hA n fInzt~r II YUUI jou nere s mat wii fll5 J cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty COMPLETE MODIFIED 37 ENGINE Factory Bench-tested udes following HI-CARBON FORGEDONEPIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi ftAaNuIrnI fl 00 flCflflINIfl nfl rnnNrt taxied takeoff position turned face judges lights turned momentarily being stopped Du-Bro nose wheel brake Second place Sport Scale Expert class won Leonard McCoy twin-engined Dornier Do23G built Don Srulls plans contrast some previous Nats twin IWhen writing advertisers mention reed about Model Aviation engines detriment due unreliability twins year successful Nats RC Pylon/Hager Continued page 41 Bill Hager Tom Christopher Dave Pearce Eric Ristrim Ron Gilman held fast time 11656 round five Tom Christopher gone 11522 fast time down three-way tie first Tom Christopher Ron Gilman Eric Ristrim followed Bill Hager Kent Nogy down two points time everybody figured out weather everyone going very fast round nine Tom Christopher Ron Gilman still top 36 points Tom dropped low time 11518 As went last day everyone trying get ready last chance Round 12 saw Ron Gilman 0 What way go put Tom Christopher first place 48 points Eric Ristrim second 47 points Ron Gilman third 44 points Rusty VanBaren fourth Bill Hager fifth Round 13 match Ron Gilman Tom Christopher two about fastest people Ron beat Tom wouldnt change standings neither wanted lose race Come heat eight eyes race course starter Bruce Richmond dropped flag start what best races have ever seen seldom 20 feet between two competitors airplanes crossed finish line Tom just few feet ahead times 11144 Tom Christopher 11155 Ron Gilman would like go fast still come second Well may have guessed Tom new Nats Formula Champion Considering people raced against no easy races Continued page 114 110 Model Aviation D DOIfl nun Send check MO win snip uuu Ufl MOO 4VU snipping & Modified 37 Package $18995 Roper 19 Still best value big-scale engines4995 19 Factory-demo Special 3495 Props 122 24-101 Now Avail Special 119 Eng 5995 NOTE mounts & hubs same price both engines
Edition: Model Aviation - 1981/11
Page Numbers: 34, 35, 36, 109, 110
NATS RC SCALE participation down year though 1981 team selection year about 36 contestants competed about half number previous Nats competitions Quality particularly Sport Scale higher have seen Nats became evident flying portion program would decide outcome Three US team members would selected two classes Precision Scale Sport Scale compete 1982 World Championships could held USSR Reno NV depending upon FM choice Precision team will consist Bob Wischer Steve Sauger George Rose winners first second third places Nats Sport Scale team includes Phil Sibille Cliff Tacie Charlie Chambers qualified because Nats models conformed FAI Precision Scale four entries models used previous team trials included George Rose Curtiss Hawk P6-E Earl Thompson Focke WuIf FW44J Steve Sauger Lockheed Orion Bob Wischer Piel Beryl Sport Scale produced number new models seen previous Nats event proved become closely contested two Some new Sport Scale planes suffi ciently innovative warrant detailed descrip tion readers have indicated foremost interest Harold Parenti member 1980 Sport Scale team brought new Mitsubishi Zero A6M2 featured combination air liquid cooling its geared Webra 60 engine water jacket like used boat operation clamped cylinder head Ethylene glycol coolant pumped through jacket means gasoline-type Robart pump coolant flowed through plastic tube double-deck radiator mounted just above engine radiator made thin brass sheet embossed grooves form half shell Two plates soldered together create tubular pattern carried coolant through labyrinth path coolant passed through two layers radiator connected short lengths plastic fuel tube cylinder jacket Hal suggested radiators may required simple holding tank may sufficient Zero used glow heat supplied single 4 amp nickel-cadmium battery cell kept circuit throughout flight Engine exhaust carried bottom outlet cowl through twin corrugated tubes adapted bathroom plumbing fixtures plumbing enclosed fiberglass cowl made female mold hinges along side latched other allowed open maintenance plane covered silk given coats clear dope 34 Model Aviation Bob contends 1st-place-winning Plel Beryl should retired soonit has now won Its R C Sca 4th Nats has flown three World Champ elonshipa Weighs 106 lbs HP 60 silk/dope Bob & Dolly Wischer specifications Jim Smiths Church Midwing MA plans No 322 Prototypes small size lets fly Giant Scale 05 50 Coverlte/Hobbypoxy Steve Saugers Precision Scale Lockheed Orion won 2nd removed access engine compartment Harold Parenti flips prop new Japanese Zero A6M2 Special features liquid-cooled cylinder head geared Webra 80 4 servos landing gear obtain sequential operation door closing Hal famed low-altitude Split-S maneuverstried bit too low Zero clipped tall grass damaged Art Johnsons Twin Mustang P-82 latin Sport Scale Expert has become countrys top fliers builders Roger Geers Shrike Commander built nine monthsbegan Bridi kit Won 5th Sport Scale Expert Operating navand landing lights November1981 35 1982 US Precision Scale team L R George Rose Hawk P-SE Bob Wiacher Piel Beryi Steve Sauger Lockheed Orion George Roses famous Curtiss Hawk P-SE judged Best Show Toledo year won 3rd 81 Nats well Tom Cook brought super-spectacular twin-ducted-fan McDonnellDouglas F4 Phantom back again year Plagued problems Leonard McCoys Dornier Do23G fourtwins flown Nats year Very stable flier helped thick wing extra nose weight narmme tnamor wan ruuuruaruu uuuru rururun arIu sJrumflman rr-o ducted fan modelmi wiii first flown World Championships competition 82 WCs has Sport Scale event Phil Sibille placed 3rd Sport Scale Expert Supermarine Spit fire Mk IX win earns him spot US Sport Scale team Art Johnsons second 1st-place-winning model Curtiss Hawk P40 won Giant Scalethe large extremely heavy spinner nose weight pushed over Sport Scale weight limit CoI Sob Thackers scratch-built 1936 Caudron racerfliesfastfora Giant Scale model power its Webra 91 engine filler scraped between coats produce metallike surface Aluminum epoxy base coat final finish polyurethane rubbed wear points give worn weathered ap pearance Because panel lines must somewhat exag gerated Sport Scale model make visible 15-ft static viewing distance Hal made fish line epoxied place 115-lb Zero featured drop tank scale operations modified Pro-Line landing gear retraction Zero damaged caught deep grass bottom split-S maneuver Bob Karlsson also member 1980 US team new Grumman FM-2 Wildcat has authentically-operating retract landing gear system slow proto type requiring 20 seconds Bob modified servo get 2 revolutions output shaft limit switches sprung gear mechanism mostly fabricated stainless steel tubing silver soldered Engine geared Webra 60 model close FAI weight limit 6 kilograms 13 ildcat fuselage covered -oz fibergiass cloth resin wings tail surfaces silk dope overall finish authentic Randolph butyrate dope given weathered appearance simulate well-worn battle-weary fighter split flaps spring loaded will extend until speed has diminished similar system used cowl cooling flaps will remain open ground will close speed increases completely auto matic operation additional servo Bob has molded tires using Flexane 80-durometer material Because model weight close limit Bob uses large aluminum beer can fuel tank order save few ounces Earl Thompson several contestants enter event addition Precision Scale Focke Wuif Stiegiitz also entered Sport Scale quest place two teams second model large 3-in scale Benny Howard Ike racer built Paul Matss three-view drawings wingspan 76 Like previous two planes described also powered geared Webra 60 swinging 16-8 prop large finned heat sink fastened cylinder head preparation expected 900 1000F temperatures Segum Earls engine cowl made aluminum sheet punched louvers Nose bowl wheel pants molded fiber giass cockpit sufficiently complete Precision Scale instruments controls aluminum seat Also visible cockpit cover opens interior fuselage structure aluminum tubing assembled cy anoacrylate cement engine exhaust ducted muffler large plenum chamber maximum silencing Model structure covered silkspan followed silk nitrate dope two layer cover Final finish acrylic enamel panels metal prototype also metal model Functional stainless steel wires brace individual wing panels plug music wire center section joiners Vito Tomeo also entered two events Giant Scale Hawker Sea Fury rebuilt after last years Nats crash Sport Scale new Hawker Tempest V 15-lb Tempest too heavy eligible contention FAI competition 80-in span model built Bentleys Aero Modeller drawings uses modified Platt retract mechanisms Finish oz giass cloth resin automotive primer K&B paint large model flown 05 90 engine 15-6 prop features sliding canopy operating split flaps external fuel tank jettisoned Tempest badly damaged near end its first flight after stall low altitude Art Johnson another entrant two classes Giant Scale Curtiss Hawk P-40 P-82 Twin Mustang Sport Scale Both planes first-place winners classes Hawk recently featured construction article Model Builder magazine actually Sport Scale airplane necessary nose weight form extremely heavy spinner brings flying weight 155 lb places Giant class North American P-82 Twin Mustang having two en gines Sport Scale class 18 lb uses pair OS FSR 60 engines Performance both airplanes ultimate realism primarily because Art ex-military pilot wide experience types aircraft knows flight characteristics limitations capabilities planes uses knowledge closely simulate flight addition superb piloting skill Art also master craftsman combination certain result success Nats Robert Hoot Gibson astronaut pilot Chase next space shuttle landing flew 875-lb scratch-built General Dyhamics F-16 third place Sportsman class fiberglass fuselage laid up mold crafted himself 520 sq wing conventional foam balsa cover finished giass cloth resin Although model equipped flaperons landings can made flaps total five ducted fan airplanes Continued page 109 36 Model Aviation ari nompsons SportScale Howard Ike isa large model Abundantuse sheet aluminum may have caused unexplained radio glitches flight NASA Astronaut Bob Hoot Gibson scratch-bulltthis General Dynamics F-i 6 fighter Power K&B 75 Scozzi fan unit VIIO uumeOu nawer ea in-ury X5K5OTT run Power HP 60 belt-drive Maximizer gear-reduction unit Mario Yederlinics Fairchild PT-i g lifts off unevenly due gusty cross wind conditions first day flying Seguin Giant Scale Mike competed two contests prior entering Novice class Mats What follows slightly edited version what wrote dad left home 81 Nats did know what expect first large contest Im ashamed say stomach full butterflies first encounter AMA officials Sunday check-in Never have seen such good organization As stood transmitter processing line talked some other contestants became aware fact some seasoned fliers just nervous calmed down always knew people model aviation friendly after treatment received other contestants Natsthey greatest Master fliers Tony Frackowiak rebuilt Super tigre X-60 spare parts after failed first round would have out competition Officials judges other contestants helped have wonderful time will long remember Mike will have lot good reasons remem ber 1981 Nats After wrote what youve seen went finish second Novice class As usual have excuse finishing higher Expert class crashed Phoenix 8 two days prior leaving Nats due aileron servo failure Bill Johnston Krafts East ern Region Sales Manager loaned back up Super Curare After four test flights felt comfortable with Phoenix airplane wasnt excuse airplane engine performed flawlessly Mats wasnt excuse friend caller Frank Prestwood handled airplane call sheet perfectly wasnt excuse truth lot fliers flew better did again yearthats excuse Nats RC Scale/Wischers Con fin ued page 36 Nats Tom Cook returned remarkable McDonnell-Douglas F4 Phantom Tom plagued problems flights four rounds two flights reasonably successful drogue landing parachute outstanding feature landings deployed Spectator reacton told story cheered flight large twin-engined model popular crowd Charlie Chambers returned Mats Grumman F9F-8 Cougar model eligible place FAI team Charlie will first modeler fly ducted fan international championship competition Another modeler enter two events George Rose famous Hawk P6-E Preci sion Scale craft flown 1982 World Championships second model Sport Scale Lockheed P-38 Lightning George modified engine rotate opposite direction prototype found feature really helpful carefully peaked engines tachometer before takeoff Col Bob Thacker can always depended upon appear Mats unusual airplane year brought Giant Scale model 1936 Caudron racer Webra 91 engine 104-lb model covered FabriKote finished K&B epoxy used 7A c3c4fane e 7 Iory ac YOUR R/C SOARING HEADQUARTERS Imported domestic Sailplane kits over 75 designs choose Ultra-Trick soaring hardware including linkages flaps ailerons spoilers mixers releasable hooks skids canopies canopy latches wing joiner blade systems Sailplane retracts 5 types choose including air electric Shempp-Hirth scissor-type spoilers also new type trailing edge airbrake/spoiler Bremaklappen Complete line launching equipment suppliesWinchmaster Fabtec TSF products thing dont stack LIFT PO Box 341 Red Lion PA 17356 717 246-2263 900 am 900 pm EST November1981 109 1981 WINTER NATIONALS Held year TUCSOn Arizona November 27 28 & 29 1981 AMA Sanctioned CASHTROPHIESPRIZES EVENTS TO BE ENTERED RADIO CONTROLCONTROL LINE PtO NooiceSIooRatPaiog NOace PSttflSPONSORED BY~ LI, Carter II Leading RIC Magazinespotiecortpa,avac Eopert PO,ern Mactet Model IndustryAetobajc Prep,jon ScaleComba Spot Scale510 Combat Sian Scale year 1981 Winter Nationals will held Tucson Only few minutes motels restaurants great flying site 1000 foot runway Spend Thanksgiving weekend sunny Tucson ILast 3 years temperature plus 8001 Write contest information ENTRY AND PRE-REGISTRATION FORM Entries postmarked after Nov20 subject $1000 late fee SEND TO Tucson Winter NationalsNAME Norm Newhouse 9255 E 26th streetADDRESS Tucson Arizona 85710CITY______ STATE ______ ZIP_____ 1-602-885-1053 AMA Number_________ Registration Fee $15 plus $500 event Registration$15 Pattern ___________________$ 5 _______ _______ MHz lolasol Giant Scale ___________________$ 5 ________ ________ MHZ Sport Scale _________________$ 5 ________ ________ MHz AMA Scale _______________$ 5 _______ MHz Control Line petexent$ ___ Important When events full earliest post mark will determine acceptance Complete information packet schedule contest information hotel accommodations will mailed upon receipt pre-reg ist ration form fees IPEGAIN Losing control can night mare wrong response given command can take its toll model nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience / Fuaba 1925 E Creighton Road N N TR H modeling radio repair So avoid inflated repair costs undue service time Radio South fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control VISA LI KIKT ne Pensacola FL 32504 904/478-6745 SUPER SCALE PLANS ORGANIZED 1/4 scale F9C 2 Sparrow Hawk 2150 11/2 scale Grumman Duck 19504 MAG FILES $495 1 3/4 scale Vought Kingfisher 1950 5496 pIus Si 00 Add $200 postage & handling oiPOsla9eandha~dlrngIe shipped tube Send 50 brochure DUSThIES PO BOX 388-K SMITH PLANS 9422 N Pairway Blvd R NH 03820 Sun Lakes AZ 85224 Williams Brothers plastic model part scale documentation Flights spectacular faster usually expected Giant class Rockwell Shrike Commander built Bridi kit entry Roger Geers four twins Nats model finished high gloss wiht K&B Superpoxy Rogers flights very fast actually necessity safe flying 165 lb 795-in wingspan plane Engines OS 40 FSRs used landing naviga tional lights scale operation plane flnnt hA n fInzt~r II YUUI jou nere s mat wii fll5 J cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty COMPLETE MODIFIED 37 ENGINE Factory Bench-tested udes following HI-CARBON FORGEDONEPIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi ftAaNuIrnI fl 00 flCflflINIfl nfl rnnNrt taxied takeoff position turned face judges lights turned momentarily being stopped Du-Bro nose wheel brake Second place Sport Scale Expert class won Leonard McCoy twin-engined Dornier Do23G built Don Srulls plans contrast some previous Nats twin IWhen writing advertisers mention reed about Model Aviation engines detriment due unreliability twins year successful Nats RC Pylon/Hager Continued page 41 Bill Hager Tom Christopher Dave Pearce Eric Ristrim Ron Gilman held fast time 11656 round five Tom Christopher gone 11522 fast time down three-way tie first Tom Christopher Ron Gilman Eric Ristrim followed Bill Hager Kent Nogy down two points time everybody figured out weather everyone going very fast round nine Tom Christopher Ron Gilman still top 36 points Tom dropped low time 11518 As went last day everyone trying get ready last chance Round 12 saw Ron Gilman 0 What way go put Tom Christopher first place 48 points Eric Ristrim second 47 points Ron Gilman third 44 points Rusty VanBaren fourth Bill Hager fifth Round 13 match Ron Gilman Tom Christopher two about fastest people Ron beat Tom wouldnt change standings neither wanted lose race Come heat eight eyes race course starter Bruce Richmond dropped flag start what best races have ever seen seldom 20 feet between two competitors airplanes crossed finish line Tom just few feet ahead times 11144 Tom Christopher 11155 Ron Gilman would like go fast still come second Well may have guessed Tom new Nats Formula Champion Considering people raced against no easy races Continued page 114 110 Model Aviation D DOIfl nun Send check MO win snip uuu Ufl MOO 4VU snipping & Modified 37 Package $18995 Roper 19 Still best value big-scale engines4995 19 Factory-demo Special 3495 Props 122 24-101 Now Avail Special 119 Eng 5995 NOTE mounts & hubs same price both engines
Edition: Model Aviation - 1981/11
Page Numbers: 34, 35, 36, 109, 110
NATS RC SCALE participation down year though 1981 team selection year about 36 contestants competed about half number previous Nats competitions Quality particularly Sport Scale higher have seen Nats became evident flying portion program would decide outcome Three US team members would selected two classes Precision Scale Sport Scale compete 1982 World Championships could held USSR Reno NV depending upon FM choice Precision team will consist Bob Wischer Steve Sauger George Rose winners first second third places Nats Sport Scale team includes Phil Sibille Cliff Tacie Charlie Chambers qualified because Nats models conformed FAI Precision Scale four entries models used previous team trials included George Rose Curtiss Hawk P6-E Earl Thompson Focke WuIf FW44J Steve Sauger Lockheed Orion Bob Wischer Piel Beryl Sport Scale produced number new models seen previous Nats event proved become closely contested two Some new Sport Scale planes suffi ciently innovative warrant detailed descrip tion readers have indicated foremost interest Harold Parenti member 1980 Sport Scale team brought new Mitsubishi Zero A6M2 featured combination air liquid cooling its geared Webra 60 engine water jacket like used boat operation clamped cylinder head Ethylene glycol coolant pumped through jacket means gasoline-type Robart pump coolant flowed through plastic tube double-deck radiator mounted just above engine radiator made thin brass sheet embossed grooves form half shell Two plates soldered together create tubular pattern carried coolant through labyrinth path coolant passed through two layers radiator connected short lengths plastic fuel tube cylinder jacket Hal suggested radiators may required simple holding tank may sufficient Zero used glow heat supplied single 4 amp nickel-cadmium battery cell kept circuit throughout flight Engine exhaust carried bottom outlet cowl through twin corrugated tubes adapted bathroom plumbing fixtures plumbing enclosed fiberglass cowl made female mold hinges along side latched other allowed open maintenance plane covered silk given coats clear dope 34 Model Aviation Bob contends 1st-place-winning Plel Beryl should retired soonit has now won Its R C Sca 4th Nats has flown three World Champ elonshipa Weighs 106 lbs HP 60 silk/dope Bob & Dolly Wischer specifications Jim Smiths Church Midwing MA plans No 322 Prototypes small size lets fly Giant Scale 05 50 Coverlte/Hobbypoxy Steve Saugers Precision Scale Lockheed Orion won 2nd removed access engine compartment Harold Parenti flips prop new Japanese Zero A6M2 Special features liquid-cooled cylinder head geared Webra 80 4 servos landing gear obtain sequential operation door closing Hal famed low-altitude Split-S maneuverstried bit too low Zero clipped tall grass damaged Art Johnsons Twin Mustang P-82 latin Sport Scale Expert has become countrys top fliers builders Roger Geers Shrike Commander built nine monthsbegan Bridi kit Won 5th Sport Scale Expert Operating navand landing lights November1981 35 1982 US Precision Scale team L R George Rose Hawk P-SE Bob Wiacher Piel Beryi Steve Sauger Lockheed Orion George Roses famous Curtiss Hawk P-SE judged Best Show Toledo year won 3rd 81 Nats well Tom Cook brought super-spectacular twin-ducted-fan McDonnellDouglas F4 Phantom back again year Plagued problems Leonard McCoys Dornier Do23G fourtwins flown Nats year Very stable flier helped thick wing extra nose weight narmme tnamor wan ruuuruaruu uuuru rururun arIu sJrumflman rr-o ducted fan modelmi wiii first flown World Championships competition 82 WCs has Sport Scale event Phil Sibille placed 3rd Sport Scale Expert Supermarine Spit fire Mk IX win earns him spot US Sport Scale team Art Johnsons second 1st-place-winning model Curtiss Hawk P40 won Giant Scalethe large extremely heavy spinner nose weight pushed over Sport Scale weight limit CoI Sob Thackers scratch-built 1936 Caudron racerfliesfastfora Giant Scale model power its Webra 91 engine filler scraped between coats produce metallike surface Aluminum epoxy base coat final finish polyurethane rubbed wear points give worn weathered ap pearance Because panel lines must somewhat exag gerated Sport Scale model make visible 15-ft static viewing distance Hal made fish line epoxied place 115-lb Zero featured drop tank scale operations modified Pro-Line landing gear retraction Zero damaged caught deep grass bottom split-S maneuver Bob Karlsson also member 1980 US team new Grumman FM-2 Wildcat has authentically-operating retract landing gear system slow proto type requiring 20 seconds Bob modified servo get 2 revolutions output shaft limit switches sprung gear mechanism mostly fabricated stainless steel tubing silver soldered Engine geared Webra 60 model close FAI weight limit 6 kilograms 13 ildcat fuselage covered -oz fibergiass cloth resin wings tail surfaces silk dope overall finish authentic Randolph butyrate dope given weathered appearance simulate well-worn battle-weary fighter split flaps spring loaded will extend until speed has diminished similar system used cowl cooling flaps will remain open ground will close speed increases completely auto matic operation additional servo Bob has molded tires using Flexane 80-durometer material Because model weight close limit Bob uses large aluminum beer can fuel tank order save few ounces Earl Thompson several contestants enter event addition Precision Scale Focke Wuif Stiegiitz also entered Sport Scale quest place two teams second model large 3-in scale Benny Howard Ike racer built Paul Matss three-view drawings wingspan 76 Like previous two planes described also powered geared Webra 60 swinging 16-8 prop large finned heat sink fastened cylinder head preparation expected 900 1000F temperatures Segum Earls engine cowl made aluminum sheet punched louvers Nose bowl wheel pants molded fiber giass cockpit sufficiently complete Precision Scale instruments controls aluminum seat Also visible cockpit cover opens interior fuselage structure aluminum tubing assembled cy anoacrylate cement engine exhaust ducted muffler large plenum chamber maximum silencing Model structure covered silkspan followed silk nitrate dope two layer cover Final finish acrylic enamel panels metal prototype also metal model Functional stainless steel wires brace individual wing panels plug music wire center section joiners Vito Tomeo also entered two events Giant Scale Hawker Sea Fury rebuilt after last years Nats crash Sport Scale new Hawker Tempest V 15-lb Tempest too heavy eligible contention FAI competition 80-in span model built Bentleys Aero Modeller drawings uses modified Platt retract mechanisms Finish oz giass cloth resin automotive primer K&B paint large model flown 05 90 engine 15-6 prop features sliding canopy operating split flaps external fuel tank jettisoned Tempest badly damaged near end its first flight after stall low altitude Art Johnson another entrant two classes Giant Scale Curtiss Hawk P-40 P-82 Twin Mustang Sport Scale Both planes first-place winners classes Hawk recently featured construction article Model Builder magazine actually Sport Scale airplane necessary nose weight form extremely heavy spinner brings flying weight 155 lb places Giant class North American P-82 Twin Mustang having two en gines Sport Scale class 18 lb uses pair OS FSR 60 engines Performance both airplanes ultimate realism primarily because Art ex-military pilot wide experience types aircraft knows flight characteristics limitations capabilities planes uses knowledge closely simulate flight addition superb piloting skill Art also master craftsman combination certain result success Nats Robert Hoot Gibson astronaut pilot Chase next space shuttle landing flew 875-lb scratch-built General Dyhamics F-16 third place Sportsman class fiberglass fuselage laid up mold crafted himself 520 sq wing conventional foam balsa cover finished giass cloth resin Although model equipped flaperons landings can made flaps total five ducted fan airplanes Continued page 109 36 Model Aviation ari nompsons SportScale Howard Ike isa large model Abundantuse sheet aluminum may have caused unexplained radio glitches flight NASA Astronaut Bob Hoot Gibson scratch-bulltthis General Dynamics F-i 6 fighter Power K&B 75 Scozzi fan unit VIIO uumeOu nawer ea in-ury X5K5OTT run Power HP 60 belt-drive Maximizer gear-reduction unit Mario Yederlinics Fairchild PT-i g lifts off unevenly due gusty cross wind conditions first day flying Seguin Giant Scale Mike competed two contests prior entering Novice class Mats What follows slightly edited version what wrote dad left home 81 Nats did know what expect first large contest Im ashamed say stomach full butterflies first encounter AMA officials Sunday check-in Never have seen such good organization As stood transmitter processing line talked some other contestants became aware fact some seasoned fliers just nervous calmed down always knew people model aviation friendly after treatment received other contestants Natsthey greatest Master fliers Tony Frackowiak rebuilt Super tigre X-60 spare parts after failed first round would have out competition Officials judges other contestants helped have wonderful time will long remember Mike will have lot good reasons remem ber 1981 Nats After wrote what youve seen went finish second Novice class As usual have excuse finishing higher Expert class crashed Phoenix 8 two days prior leaving Nats due aileron servo failure Bill Johnston Krafts East ern Region Sales Manager loaned back up Super Curare After four test flights felt comfortable with Phoenix airplane wasnt excuse airplane engine performed flawlessly Mats wasnt excuse friend caller Frank Prestwood handled airplane call sheet perfectly wasnt excuse truth lot fliers flew better did again yearthats excuse Nats RC Scale/Wischers Con fin ued page 36 Nats Tom Cook returned remarkable McDonnell-Douglas F4 Phantom Tom plagued problems flights four rounds two flights reasonably successful drogue landing parachute outstanding feature landings deployed Spectator reacton told story cheered flight large twin-engined model popular crowd Charlie Chambers returned Mats Grumman F9F-8 Cougar model eligible place FAI team Charlie will first modeler fly ducted fan international championship competition Another modeler enter two events George Rose famous Hawk P6-E Preci sion Scale craft flown 1982 World Championships second model Sport Scale Lockheed P-38 Lightning George modified engine rotate opposite direction prototype found feature really helpful carefully peaked engines tachometer before takeoff Col Bob Thacker can always depended upon appear Mats unusual airplane year brought Giant Scale model 1936 Caudron racer Webra 91 engine 104-lb model covered FabriKote finished K&B epoxy used 7A c3c4fane e 7 Iory ac YOUR R/C SOARING HEADQUARTERS Imported domestic Sailplane kits over 75 designs choose Ultra-Trick soaring hardware including linkages flaps ailerons spoilers mixers releasable hooks skids canopies canopy latches wing joiner blade systems Sailplane retracts 5 types choose including air electric Shempp-Hirth scissor-type spoilers also new type trailing edge airbrake/spoiler Bremaklappen Complete line launching equipment suppliesWinchmaster Fabtec TSF products thing dont stack LIFT PO Box 341 Red Lion PA 17356 717 246-2263 900 am 900 pm EST November1981 109 1981 WINTER NATIONALS Held year TUCSOn Arizona November 27 28 & 29 1981 AMA Sanctioned CASHTROPHIESPRIZES EVENTS TO BE ENTERED RADIO CONTROLCONTROL LINE PtO NooiceSIooRatPaiog NOace PSttflSPONSORED BY~ LI, Carter II Leading RIC Magazinespotiecortpa,avac Eopert PO,ern Mactet Model IndustryAetobajc Prep,jon ScaleComba Spot Scale510 Combat Sian Scale year 1981 Winter Nationals will held Tucson Only few minutes motels restaurants great flying site 1000 foot runway Spend Thanksgiving weekend sunny Tucson ILast 3 years temperature plus 8001 Write contest information ENTRY AND PRE-REGISTRATION FORM Entries postmarked after Nov20 subject $1000 late fee SEND TO Tucson Winter NationalsNAME Norm Newhouse 9255 E 26th streetADDRESS Tucson Arizona 85710CITY______ STATE ______ ZIP_____ 1-602-885-1053 AMA Number_________ Registration Fee $15 plus $500 event Registration$15 Pattern ___________________$ 5 _______ _______ MHz lolasol Giant Scale ___________________$ 5 ________ ________ MHZ Sport Scale _________________$ 5 ________ ________ MHz AMA Scale _______________$ 5 _______ MHz Control Line petexent$ ___ Important When events full earliest post mark will determine acceptance Complete information packet schedule contest information hotel accommodations will mailed upon receipt pre-reg ist ration form fees IPEGAIN Losing control can night mare wrong response given command can take its toll model nerves wallet Radio South know feel about hobby too avid RC enthusiasts nearly half century combined experience / Fuaba 1925 E Creighton Road N N TR H modeling radio repair So avoid inflated repair costs undue service time Radio South fast economical inhouse radio service can depend Radio South customer satisfaction isnt just motto Its way life Let us put back control VISA LI KIKT ne Pensacola FL 32504 904/478-6745 SUPER SCALE PLANS ORGANIZED 1/4 scale F9C 2 Sparrow Hawk 2150 11/2 scale Grumman Duck 19504 MAG FILES $495 1 3/4 scale Vought Kingfisher 1950 5496 pIus Si 00 Add $200 postage & handling oiPOsla9eandha~dlrngIe shipped tube Send 50 brochure DUSThIES PO BOX 388-K SMITH PLANS 9422 N Pairway Blvd R NH 03820 Sun Lakes AZ 85224 Williams Brothers plastic model part scale documentation Flights spectacular faster usually expected Giant class Rockwell Shrike Commander built Bridi kit entry Roger Geers four twins Nats model finished high gloss wiht K&B Superpoxy Rogers flights very fast actually necessity safe flying 165 lb 795-in wingspan plane Engines OS 40 FSRs used landing naviga tional lights scale operation plane flnnt hA n fInzt~r II YUUI jou nere s mat wii fll5 J cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitts straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty COMPLETE MODIFIED 37 ENGINE Factory Bench-tested udes following HI-CARBON FORGEDONEPIECE CRANK AND CONNECTING ROD ELECTRONIC IGNITION SIX-BOLT HUB AN6 POSITIONABLE EXHAUSi ftAaNuIrnI fl 00 flCflflINIfl nfl rnnNrt taxied takeoff position turned face judges lights turned momentarily being stopped Du-Bro nose wheel brake Second place Sport Scale Expert class won Leonard McCoy twin-engined Dornier Do23G built Don Srulls plans contrast some previous Nats twin IWhen writing advertisers mention reed about Model Aviation engines detriment due unreliability twins year successful Nats RC Pylon/Hager Continued page 41 Bill Hager Tom Christopher Dave Pearce Eric Ristrim Ron Gilman held fast time 11656 round five Tom Christopher gone 11522 fast time down three-way tie first Tom Christopher Ron Gilman Eric Ristrim followed Bill Hager Kent Nogy down two points time everybody figured out weather everyone going very fast round nine Tom Christopher Ron Gilman still top 36 points Tom dropped low time 11518 As went last day everyone trying get ready last chance Round 12 saw Ron Gilman 0 What way go put Tom Christopher first place 48 points Eric Ristrim second 47 points Ron Gilman third 44 points Rusty VanBaren fourth Bill Hager fifth Round 13 match Ron Gilman Tom Christopher two about fastest people Ron beat Tom wouldnt change standings neither wanted lose race Come heat eight eyes race course starter Bruce Richmond dropped flag start what best races have ever seen seldom 20 feet between two competitors airplanes crossed finish line Tom just few feet ahead times 11144 Tom Christopher 11155 Ron Gilman would like go fast still come second Well may have guessed Tom new Nats Formula Champion Considering people raced against no easy races Continued page 114 110 Model Aviation D DOIfl nun Send check MO win snip uuu Ufl MOO 4VU snipping & Modified 37 Package $18995 Roper 19 Still best value big-scale engines4995 19 Factory-demo Special 3495 Props 122 24-101 Now Avail Special 119 Eng 5995 NOTE mounts & hubs same price both engines