The Fokker T-2

Top The Liberty-engined Fokker IV just before its approximately 27-hour trip Roosevelt Field NY San Diego Note cockpit position alongside engine pilot must have deafened time reached Coast Above Model before its Nats win ONE OF significant milestones American aviation history first nonstop coast-to-coast airplane flight made May 2-3 1923 Army lieu tenants J Macready 0 G Kelly left Roosevelt Field New York May 2 1136 am arrived some 26 hours 50 minutes later San Diego California appreciate technical skill bravery exhibited Kelly Macreadys flight must realize done electronic navigation aids aeronautical maps against prevailing West East winds course flight could have possible excellent perform ance Fokker F IV airplane Liberty V-12 engine F IV early aircraft long line Fokker transport airplane designs Army took delivery two F IV airplanes 1922 designating T-2 transport other A-2 ambulance T-2 fol lowed successful Fokker design formula featured all-wood cantilever wing welded steel-tube fabric-covered fuselage tail features evolved successful fighter plane designs Fokker produced during World War wing T-2 said en largement wing Fokker D VIII fighter plane just entering German service war ended Much credit design must go Reinhold Platz Fokkers chief de signer However Anthony Fokker chief test pilot severest critic own companys designs Consequently Fokker airplanes known ex cellent handling rugged dependability excellent performance introduction successful elec tric powerplants model airplanes came very interested application free-flight scale promised some outstanding advantages such instant starting no exhaust mess no cooling air requirements Several unsuccessful electric-powered models tried learned number valuable lessons First unless love tinker stick 38 Model Aviation powerplants market well engineered will give perform ance promised advertisements Second dont take short cuts battery charging system dry lantern battery will charge flight batteries full potential powerplant wont realized unless wetcell battery charging system used recommended instructions Lastly electric powerplants n6t have power-to-weight capabilities regular / IC 110 150 *eSIO 110 WL 01000 roe aALT nO Sn. tIC WEO OCt oaan WflI NY ean. raw * a COOC liii Tas noN Conan WuasO Tulsa elantoe nan nay TE LEyNSE maSh NYU IS Sana watt t0uo ICe WTEsaI aICO sow. nEt m yaw. ETa 010L0 II ba IWOLICO WILE 1Ta - ham con eI. hal ha lDa fib osoala .oyr.ehDah Cl SCot a. VC5flVtt WSWAsWL Oman oa Obsa CaSt flyaC o..nol how. otTaOt / / / FUSEL4fT00S WECTAN CL AR II GAS Al 7flh1 II Ilant ti~jI 00 OodE 11. aai 0 y Tg S nyan anynto TETCf S AM NOT TO SCALE flat IIC YW 000C AC afl.0Ai NO 924-3 onamC IWTTIWYWOaytOo ER T-2 yo00A00 yo.FOstER L.Thg.Ausstmiu 1922RAM -62 August1977 39 / 4 m 2 glow-plug engines Construction tech niques perfectly satisfactory 049-powered model probably too heavy electric-powered model Gen erally electric powered models should built like rubber-powered models can pose problem free-flight scale competition scale judging rules free-flight scale demand very detailed model colored dope interior details means relatively heavy model However few real airplanes suitable electric free-flight scale generally fall category ultra-light airplanes pio neer airplanes early very long-range airplanes airplanes high power loadings ie lot weight horsepower available Fokker T-2 falls category also has another distinct advantage availability proof-of-scale ma terial book Smithsonian Annals Flight First Nonstop Coast-toCoast Flight Historic T-2 Air plane Louis S Casey still available Government Printing Office contains excellent 3-view drawings photographs plus complete history flight airplanes development After historic flight T-2 flown Smithsonian currently display Numerous other books magazines contain photographs drawings text T-2 its historic flight thing bothered about T-2 subject free flight its very small stabilizer Consequently built small glider scale model T-2 determine minimum tail size would work Although completely scale stabilizer too small slight en largement necessary stable flight glider model also demonstrated basic T-2 design considerable spiral stability near scale dihedral adequate Prior 1976 Nationals model T-2 flown about 50 times con tained no surprises Ive flown free-flight scale events Nationals since late 1960s 1976 event worst conditions ever raining time windy getting dark event flown evening first flight hand-launch between rain showers T-2 performed very well got high enough flight score secure first place Subsequent attempts takeoff successful due wind lift off fine first turn resulted wing tip dragging ground 1976 Na tionals free flight scale event received very little coverage modeling press shame since good field models some good flying under some worst conditions ever Construction construction follows real airplane closely wing sheet balsa fuselage tail built up tissue covered built scale half-inch equals foot weighs about 12 ounces ready fly Wing thing strikes first about T-2 its massive wing large extent wing set Fokker T-2 apart its contemporaries performance made primarily thin plywood sheets formed multiple structural cells root airfoil thick flat-bottomed progressively changed thin undercambered section tips models wing made much same way although quantity ribs smaller save construction time weight Begin making bottom wing skins out medium 1/32 balsa Since wing quite broad two sheets balsa will have butt-glued together form wing skins Now cut out wing ribs jigs 1/16 sheet balsa jigs pinned plan work board locations indicated Pin lower wing skin jigs cement ribs place Add spars leading edge cover top wing 1/32 sheet balsa Build wing panel time because spars wont allow entire wing lay flat plan spars shaped insure correct dihedral built ailerons built over plan conventional manner real airplanes wing covered numerous sheets plywood covered fabric varnished Continued page 84 40 Model Aviation Andrew holding Dads faithful copy historic Fokker Although tail surfaces appear tiny slightly enlarged scalefor sport flying probably should modestly enlarged again Real cantilevered wing said have enlarged wartime Fokker DVIII massive wing leaves dominant impression T-2 Like real plane models wing made thin sheet wood drawing its strength multi-cell design Through glider tests prior building model Tom confirmed near scale dihedral would sufficient U r I-uI-1K~---- U OTITH RIB 3-iilZiiliiATINT RIASJOSA SPATS TICSTCET E~7E TYPICAL EUSALTOFPILOTS WHEEL Qfl~gp II_ jIANIHRTTH~FOR II2P FRE TN Rlt2S12ELECTRIC 1 C fTl z U w ii U ii -U C m 0 NEW FORD TRI MOTOR 1195 Unique because such amazing scale deti kits relatively ~ ways such~edg1~ Mlfljred j yOU 1W see oUr neW two C Wal flOt~er bOO15 0 sP j~oCI yOUV- s clearly shown ~uuing arugnly detailed Plastic Parts touch realism-in-miniature NEW MESSERSCHMITT 495 BEGINNERS ZERO Nifty control line models Theyre easiest ones world assemble-all wood no tissue coveringonly 6 9 parts depending model ex cept Biplanes have few Genuine Nylon motor mount THEYRE AT YOUR DEALER GET OVER AND SEE THEM NOW outboard bevel length tank Out side cross-section dimensions two inches design length tank equals capacity fluid ounces Les McDonald uniflow Rabe Gieseke prefer type tank long bevel Randy Hancock tanks rectangular shape 1 X 2 small bevel starting approximately 2 back end tank 47/g long holds approximately 5 oz fuel todays pattern Fox 35 needs four oz fuel 5 percent nitro Same Max Supertigre 46 275 venturi 10% nitro fuel needs approxi mately 55 oz tank capacity Using 5% OMPLETE THIS FORM ND ATTACH MAILING SUE DEL FROM RECENT LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks re quired change address Attach current MA mailing label check appropriate box mail Subscription Dept. Model Aviation 815 Fifteenth St. NW. Washington DC. 20005 Check appropriate boxenclose payment C NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA subscription rates $1200 12 months Canada United States possession elsewhere $1400 NAME ADDRESS CITY/STATEZIP ________________ MODEL AVIATION 815 FIFTEENTH ST. NW. WASHINGTON DC 20005 ready bolt placeComplete control system less handle lines decals landing gear wheels etc makes building cinch assembly literally minutes can use 049 engine nitro usually works better 280 venturi need about 525 oz fuel maybe just 5 oz way re placement venturi available Bob no Hunt CSC Now know will 14 different opinions some above specs good start ing points until can see what works Bill Werwage likes tanks 1 1 wide fuselage feeling have fuel head pressure feed pickup tube 46 means need tank about six inches long try make tank thicker inch may have spray bar-pickup tube problems although Bill has used tanks P/s deep Bill flying HP 40 Ares size last summer using 55- 575-oz uniflow tank Fox 35 ST 46 uses straight muf fler pressure old-fashioned suction type tank alternates between using both vents hooked Y fitting using just vent muffler Dan Shafer Dayton Ohio using HP 40 reports uses uniflow muffler pressure 575-oz tank small wedge rear 280 venturi 10% nitro fuel makes tanks 1 high 1 wide information PAMPA com ments contact Wynn Paul 1640 Maywick Dr Lexing ton KY 40504 Fokker T-2/Stark continued page 40 simulate different shades coloring plywood sheets wing can lightly stained random pattern rectangles scale plywood sheet size Now dope thin strips Silkspan shown plan simulate lap joints real airplanes fabric cover ing entire wing can now covered white Japanese tissue given two three coats clear dope Fuselage Construction old-time builtup few unusual wrinkles First two sides arent identicaL basic structure real airplane visi ble through large windows pre serve scale appearance model du plicates location structural members Instead building side directly top other tradition al side built separately differ ent plan views Also since real air plane built steel tubing model structure cabin area visible through windows should round painted gray Rounded Vs sq balsa used original model visual effect good could improved using 1/16 hardwood dowels uprights other structure cabin areabut longerons After sides com pleted join rear add cross pieces Kraft C clamps excellent purpose help insure squareness nose built primarily sheet balsa thin aluminum covering top bottom bottom covering stalled very small wood screws can removed acess motor charging jack switch can installed bottom covering Suitable aluminum purpose can come clothes-drier ducts available hardware stores modest cost front radiator piece thin plywood held place lip bottom cowl covering Astro 020 motor held TIGER MOTH 1295 84 Model Aviation HIGH POWER ULTRA SONIC CLEANER cleaner has patented Power Pump circuit nearly doubles power over cleaners same 51Z5 Required top performance 2 & 4 quart sizes As shown lass eng & radio S88 Chassis factory asseablad $76 PISTON SETTING TOOL CDX 049 engines HARDENED STEELANODIZED No TRA503$325 MUFF-L-IT SERIES Six eight Ob reduction noise engines Proportional volumne expansion chamber Triple reflective intermediate chamber Large exhaust nozzle low back pressure Little loss power Available B C engines No 301 0919 $749 No 322940$839 No 303 45-80 $949 NEW 112A MUFFLER Fits COX 049 engines new muffler gives significant noise reduction ith cry littie power loss Back facing No 300A049$549 No 30DB051$549 SCHNOERLE enqines place rubberbands held books attached inside nose balsa side pieces VL motor used can screwed former F3 hole former should made slightly smaller fit motor sides cabin area covered light cardboard such file folder notebook separator material win dows cut cardboard covering fuselage should covered Silkspan tissue real airplane cowl ing covered metal sides cowling should covered thin plastic sheet such celluloid clear plastic sheet about 010 015 inch thick painted makes excel lent simulation metal covering cabin has 1/32 sheet balsa floor stained wood color rest cabin area painted light gray Astro Flight battery pack should painted gray set balsa box cabin floor held place rubberbands tached hooks cabin sides location battery approximates size location cabin fuel tank real airplane landing gear made 064 040 music wire quite rigid spring action comes 3/32-in brass tubing axle bound landing gear white elastic thread springing same used real Fokker T-2 other airplanes era landing gear built manner realistic has proven rugged wing held fuselage rub berbands inside fuselage fuselage section view plan shows should hook both wing spars matching hooks attached fuselage structure Split A-in dowel keys should cemented wing notches cut in appropriate places top fuselage longerons wing location does shift method wing attachment avoids externally visible mounting parts allows wing movement impact has proven have very trouble free model tail surfaces ordinary stick con struction built plan covered Japanese tissue Finish fuselage tail given enough coats clear dope just fill tissue give relatively smooth finish painted olive brown Al though color specified olive drab airplanes era much brown greenish olive drab World War II airplanes obtain suit able color can mix two parts Aero Gloss camouflage tan part earth brown markings applied now Refer photographs location fuselage stripingwhich gold let tering also gold window frames Vinyl self-stick shelf paper excellent material making stencils lettering wing insignia Flying model balanced just about right need ballast ever model doesnt balance point shown plan add ballast achieve correct center gravity sure tail surfaces warped Set control surfaces neutral posi tion Hand-glide model over tall grass adjust control surfaces required smooth straight slightly left turn glide Next try powered flight short battery charge will give about ten seconds full power different characteristic electric power get same initial power regardless length battery charging charging time determines duration powered flight climb should left turn model stalls turns right adjust thrust line and/or control surfaces get left turn under power ideal flight pattern model seems open left turn under power straight glide slight right turn glide though T-2 has little dihedral August1977 85 No 175 21 Quart$165 No 176 46 Quart$185 8 oz Detergent$195 qt Detergent$342 THE INVADER 1/12th scale metal car revolution car technology Front rear wheel suspension Uses standard parts Car designed performance Patents applied \ ft ii / -AVAILABLE SOONMufflers rear exhaust can turn quite tightly under power such tight turn isnt realistic article has described competition type free-flight electricpowered scale model design flexible enough some other applications example 020 glow engine would work very well would probably increase performance due its lighter weight interested contest flying stabilizer could enlarged about 15 per cent easier adjusting cabin area quite roomy could easily hold radio control set 049 glow engine light radio T-2 would lend itself well RC confined space flying Regardless whether build du plicate electric-powered free-flight model suggested modifica tions will rewarded realistic flying replica important historic airplanes As model cruises slowly majestically overhead will reminded inspiring feats American aeronautical herit age RC Soaring/Pruss continued page 25 Flyers SFVSF Soaring Union Los Angeles SU LA Pacific Soaring Associa tion PSA Pasadena Soaring Society PSS Harbor Soaring Society HSS Torrey Pines Gulls TPG Silent Wing Soaring ssociation SWSA Model Avi ation Radio Kontrol Society MARKS Note eight listed hereDJP does SC2 work Clubs long SC2 desire hold contest assigned month hold contest Usually seven contests through out year standardized entry fee $350 per contestant $250 goes club hosting contest $1 SC2 organization $1 used operating expenses raffle prizes yearend awards year-end champion deter mined contest has raw score 3000 points entire contest normalized 1000 points cumulative total normalized scores used year-end championship points con testants best five out seven contests counted What does championship prove obvious person wins championship has flown consistently throughout year 1976 top three finishers flew same plane year Flying same plane getting know has key other championship performances witness Mrlik Heithecker Edberg Rick Pearson Mark Smith current world champion Skip MillerDJP flew unmodified manufactured kits above can act basis forming other soaring groups should further remind think con test circuit cross-country trek can local local clubs would organize groups newcomer soaring column think contests have thermals under belts may re-emphasized current World Champion Skip Miller started RC Soaring just little over year ago kinda makes us want take up bowling Bumblebees cannot fly Some years ago group aerodynamicists got together proved bee could fly because its wing loading few other factors explained bee didnt know little hummer went out flew anyway few issues back column reported speed record sailplanes 188 mph set Werner Sitar Austria us raised eyebrows column ever got reader reaction Among screamed foul 86 Model Aviation SC2 SC2 made up nine soaring clubs San Fernando Valley Silent

Top The Liberty-engined Fokker IV just before its approximately 27-hour trip Roosevelt Field NY San Diego Note cockpit position alongside engine pilot must have deafened time reached Coast Above Model before its Nats win ONE OF significant milestones American aviation history first nonstop coast-to-coast airplane flight made May 2-3 1923 Army lieu tenants J Macready 0 G Kelly left Roosevelt Field New York May 2 1136 am arrived some 26 hours 50 minutes later San Diego California appreciate technical skill bravery exhibited Kelly Macreadys flight must realize done electronic navigation aids aeronautical maps against prevailing West East winds course flight could have possible excellent perform ance Fokker F IV airplane Liberty V-12 engine F IV early aircraft long line Fokker transport airplane designs Army took delivery two F IV airplanes 1922 designating T-2 transport other A-2 ambulance T-2 fol lowed successful Fokker design formula featured all-wood cantilever wing welded steel-tube fabric-covered fuselage tail features evolved successful fighter plane designs Fokker produced during World War wing T-2 said en largement wing Fokker D VIII fighter plane just entering German service war ended Much credit design must go Reinhold Platz Fokkers chief de signer However Anthony Fokker chief test pilot severest critic own companys designs Consequently Fokker airplanes known ex cellent handling rugged dependability excellent performance introduction successful elec tric powerplants model airplanes came very interested application free-flight scale promised some outstanding advantages such instant starting no exhaust mess no cooling air requirements Several unsuccessful electric-powered models tried learned number valuable lessons First unless love tinker stick 38 Model Aviation powerplants market well engineered will give perform ance promised advertisements Second dont take short cuts battery charging system dry lantern battery will charge flight batteries full potential powerplant wont realized unless wetcell battery charging system used recommended instructions Lastly electric powerplants n6t have power-to-weight capabilities regular / IC 110 150 *eSIO 110 WL 01000 roe aALT nO Sn. tIC WEO OCt oaan WflI NY ean. raw * a COOC liii Tas noN Conan WuasO Tulsa elantoe nan nay TE LEyNSE maSh NYU IS Sana watt t0uo ICe WTEsaI aICO sow. nEt m yaw. ETa 010L0 II ba IWOLICO WILE 1Ta - ham con eI. hal ha lDa fib osoala .oyr.ehDah Cl SCot a. VC5flVtt WSWAsWL Oman oa Obsa CaSt flyaC o..nol how. otTaOt / / / FUSEL4fT00S WECTAN CL AR II GAS Al 7flh1 II Ilant ti~jI 00 OodE 11. aai 0 y Tg S nyan anynto TETCf S AM NOT TO SCALE flat IIC YW 000C AC afl.0Ai NO 924-3 onamC IWTTIWYWOaytOo ER T-2 yo00A00 yo.FOstER L.Thg.Ausstmiu 1922RAM -62 August1977 39 / 4 m 2 glow-plug engines Construction tech niques perfectly satisfactory 049-powered model probably too heavy electric-powered model Gen erally electric powered models should built like rubber-powered models can pose problem free-flight scale competition scale judging rules free-flight scale demand very detailed model colored dope interior details means relatively heavy model However few real airplanes suitable electric free-flight scale generally fall category ultra-light airplanes pio neer airplanes early very long-range airplanes airplanes high power loadings ie lot weight horsepower available Fokker T-2 falls category also has another distinct advantage availability proof-of-scale ma terial book Smithsonian Annals Flight First Nonstop Coast-toCoast Flight Historic T-2 Air plane Louis S Casey still available Government Printing Office contains excellent 3-view drawings photographs plus complete history flight airplanes development After historic flight T-2 flown Smithsonian currently display Numerous other books magazines contain photographs drawings text T-2 its historic flight thing bothered about T-2 subject free flight its very small stabilizer Consequently built small glider scale model T-2 determine minimum tail size would work Although completely scale stabilizer too small slight en largement necessary stable flight glider model also demonstrated basic T-2 design considerable spiral stability near scale dihedral adequate Prior 1976 Nationals model T-2 flown about 50 times con tained no surprises Ive flown free-flight scale events Nationals since late 1960s 1976 event worst conditions ever raining time windy getting dark event flown evening first flight hand-launch between rain showers T-2 performed very well got high enough flight score secure first place Subsequent attempts takeoff successful due wind lift off fine first turn resulted wing tip dragging ground 1976 Na tionals free flight scale event received very little coverage modeling press shame since good field models some good flying under some worst conditions ever Construction construction follows real airplane closely wing sheet balsa fuselage tail built up tissue covered built scale half-inch equals foot weighs about 12 ounces ready fly Wing thing strikes first about T-2 its massive wing large extent wing set Fokker T-2 apart its contemporaries performance made primarily thin plywood sheets formed multiple structural cells root airfoil thick flat-bottomed progressively changed thin undercambered section tips models wing made much same way although quantity ribs smaller save construction time weight Begin making bottom wing skins out medium 1/32 balsa Since wing quite broad two sheets balsa will have butt-glued together form wing skins Now cut out wing ribs jigs 1/16 sheet balsa jigs pinned plan work board locations indicated Pin lower wing skin jigs cement ribs place Add spars leading edge cover top wing 1/32 sheet balsa Build wing panel time because spars wont allow entire wing lay flat plan spars shaped insure correct dihedral built ailerons built over plan conventional manner real airplanes wing covered numerous sheets plywood covered fabric varnished Continued page 84 40 Model Aviation Andrew holding Dads faithful copy historic Fokker Although tail surfaces appear tiny slightly enlarged scalefor sport flying probably should modestly enlarged again Real cantilevered wing said have enlarged wartime Fokker DVIII massive wing leaves dominant impression T-2 Like real plane models wing made thin sheet wood drawing its strength multi-cell design Through glider tests prior building model Tom confirmed near scale dihedral would sufficient U r I-uI-1K~---- U OTITH RIB 3-iilZiiliiATINT RIASJOSA SPATS TICSTCET E~7E TYPICAL EUSALTOFPILOTS WHEEL Qfl~gp II_ jIANIHRTTH~FOR II2P FRE TN Rlt2S12ELECTRIC 1 C fTl z U w ii U ii -U C m 0 NEW FORD TRI MOTOR 1195 Unique because such amazing scale deti kits relatively ~ ways such~edg1~ Mlfljred j yOU 1W see oUr neW two C Wal flOt~er bOO15 0 sP j~oCI yOUV- s clearly shown ~uuing arugnly detailed Plastic Parts touch realism-in-miniature NEW MESSERSCHMITT 495 BEGINNERS ZERO Nifty control line models Theyre easiest ones world assemble-all wood no tissue coveringonly 6 9 parts depending model ex cept Biplanes have few Genuine Nylon motor mount THEYRE AT YOUR DEALER GET OVER AND SEE THEM NOW outboard bevel length tank Out side cross-section dimensions two inches design length tank equals capacity fluid ounces Les McDonald uniflow Rabe Gieseke prefer type tank long bevel Randy Hancock tanks rectangular shape 1 X 2 small bevel starting approximately 2 back end tank 47/g long holds approximately 5 oz fuel todays pattern Fox 35 needs four oz fuel 5 percent nitro Same Max Supertigre 46 275 venturi 10% nitro fuel needs approxi mately 55 oz tank capacity Using 5% OMPLETE THIS FORM ND ATTACH MAILING SUE DEL FROM RECENT LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks re quired change address Attach current MA mailing label check appropriate box mail Subscription Dept. Model Aviation 815 Fifteenth St. NW. Washington DC. 20005 Check appropriate boxenclose payment C NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA subscription rates $1200 12 months Canada United States possession elsewhere $1400 NAME ADDRESS CITY/STATEZIP ________________ MODEL AVIATION 815 FIFTEENTH ST. NW. WASHINGTON DC 20005 ready bolt placeComplete control system less handle lines decals landing gear wheels etc makes building cinch assembly literally minutes can use 049 engine nitro usually works better 280 venturi need about 525 oz fuel maybe just 5 oz way re placement venturi available Bob no Hunt CSC Now know will 14 different opinions some above specs good start ing points until can see what works Bill Werwage likes tanks 1 1 wide fuselage feeling have fuel head pressure feed pickup tube 46 means need tank about six inches long try make tank thicker inch may have spray bar-pickup tube problems although Bill has used tanks P/s deep Bill flying HP 40 Ares size last summer using 55- 575-oz uniflow tank Fox 35 ST 46 uses straight muf fler pressure old-fashioned suction type tank alternates between using both vents hooked Y fitting using just vent muffler Dan Shafer Dayton Ohio using HP 40 reports uses uniflow muffler pressure 575-oz tank small wedge rear 280 venturi 10% nitro fuel makes tanks 1 high 1 wide information PAMPA com ments contact Wynn Paul 1640 Maywick Dr Lexing ton KY 40504 Fokker T-2/Stark continued page 40 simulate different shades coloring plywood sheets wing can lightly stained random pattern rectangles scale plywood sheet size Now dope thin strips Silkspan shown plan simulate lap joints real airplanes fabric cover ing entire wing can now covered white Japanese tissue given two three coats clear dope Fuselage Construction old-time builtup few unusual wrinkles First two sides arent identicaL basic structure real airplane visi ble through large windows pre serve scale appearance model du plicates location structural members Instead building side directly top other tradition al side built separately differ ent plan views Also since real air plane built steel tubing model structure cabin area visible through windows should round painted gray Rounded Vs sq balsa used original model visual effect good could improved using 1/16 hardwood dowels uprights other structure cabin areabut longerons After sides com pleted join rear add cross pieces Kraft C clamps excellent purpose help insure squareness nose built primarily sheet balsa thin aluminum covering top bottom bottom covering stalled very small wood screws can removed acess motor charging jack switch can installed bottom covering Suitable aluminum purpose can come clothes-drier ducts available hardware stores modest cost front radiator piece thin plywood held place lip bottom cowl covering Astro 020 motor held TIGER MOTH 1295 84 Model Aviation HIGH POWER ULTRA SONIC CLEANER cleaner has patented Power Pump circuit nearly doubles power over cleaners same 51Z5 Required top performance 2 & 4 quart sizes As shown lass eng & radio S88 Chassis factory asseablad $76 PISTON SETTING TOOL CDX 049 engines HARDENED STEELANODIZED No TRA503$325 MUFF-L-IT SERIES Six eight Ob reduction noise engines Proportional volumne expansion chamber Triple reflective intermediate chamber Large exhaust nozzle low back pressure Little loss power Available B C engines No 301 0919 $749 No 322940$839 No 303 45-80 $949 NEW 112A MUFFLER Fits COX 049 engines new muffler gives significant noise reduction ith cry littie power loss Back facing No 300A049$549 No 30DB051$549 SCHNOERLE enqines place rubberbands held books attached inside nose balsa side pieces VL motor used can screwed former F3 hole former should made slightly smaller fit motor sides cabin area covered light cardboard such file folder notebook separator material win dows cut cardboard covering fuselage should covered Silkspan tissue real airplane cowl ing covered metal sides cowling should covered thin plastic sheet such celluloid clear plastic sheet about 010 015 inch thick painted makes excel lent simulation metal covering cabin has 1/32 sheet balsa floor stained wood color rest cabin area painted light gray Astro Flight battery pack should painted gray set balsa box cabin floor held place rubberbands tached hooks cabin sides location battery approximates size location cabin fuel tank real airplane landing gear made 064 040 music wire quite rigid spring action comes 3/32-in brass tubing axle bound landing gear white elastic thread springing same used real Fokker T-2 other airplanes era landing gear built manner realistic has proven rugged wing held fuselage rub berbands inside fuselage fuselage section view plan shows should hook both wing spars matching hooks attached fuselage structure Split A-in dowel keys should cemented wing notches cut in appropriate places top fuselage longerons wing location does shift method wing attachment avoids externally visible mounting parts allows wing movement impact has proven have very trouble free model tail surfaces ordinary stick con struction built plan covered Japanese tissue Finish fuselage tail given enough coats clear dope just fill tissue give relatively smooth finish painted olive brown Al though color specified olive drab airplanes era much brown greenish olive drab World War II airplanes obtain suit able color can mix two parts Aero Gloss camouflage tan part earth brown markings applied now Refer photographs location fuselage stripingwhich gold let tering also gold window frames Vinyl self-stick shelf paper excellent material making stencils lettering wing insignia Flying model balanced just about right need ballast ever model doesnt balance point shown plan add ballast achieve correct center gravity sure tail surfaces warped Set control surfaces neutral posi tion Hand-glide model over tall grass adjust control surfaces required smooth straight slightly left turn glide Next try powered flight short battery charge will give about ten seconds full power different characteristic electric power get same initial power regardless length battery charging charging time determines duration powered flight climb should left turn model stalls turns right adjust thrust line and/or control surfaces get left turn under power ideal flight pattern model seems open left turn under power straight glide slight right turn glide though T-2 has little dihedral August1977 85 No 175 21 Quart$165 No 176 46 Quart$185 8 oz Detergent$195 qt Detergent$342 THE INVADER 1/12th scale metal car revolution car technology Front rear wheel suspension Uses standard parts Car designed performance Patents applied \ ft ii / -AVAILABLE SOONMufflers rear exhaust can turn quite tightly under power such tight turn isnt realistic article has described competition type free-flight electricpowered scale model design flexible enough some other applications example 020 glow engine would work very well would probably increase performance due its lighter weight interested contest flying stabilizer could enlarged about 15 per cent easier adjusting cabin area quite roomy could easily hold radio control set 049 glow engine light radio T-2 would lend itself well RC confined space flying Regardless whether build du plicate electric-powered free-flight model suggested modifica tions will rewarded realistic flying replica important historic airplanes As model cruises slowly majestically overhead will reminded inspiring feats American aeronautical herit age RC Soaring/Pruss continued page 25 Flyers SFVSF Soaring Union Los Angeles SU LA Pacific Soaring Associa tion PSA Pasadena Soaring Society PSS Harbor Soaring Society HSS Torrey Pines Gulls TPG Silent Wing Soaring ssociation SWSA Model Avi ation Radio Kontrol Society MARKS Note eight listed hereDJP does SC2 work Clubs long SC2 desire hold contest assigned month hold contest Usually seven contests through out year standardized entry fee $350 per contestant $250 goes club hosting contest $1 SC2 organization $1 used operating expenses raffle prizes yearend awards year-end champion deter mined contest has raw score 3000 points entire contest normalized 1000 points cumulative total normalized scores used year-end championship points con testants best five out seven contests counted What does championship prove obvious person wins championship has flown consistently throughout year 1976 top three finishers flew same plane year Flying same plane getting know has key other championship performances witness Mrlik Heithecker Edberg Rick Pearson Mark Smith current world champion Skip MillerDJP flew unmodified manufactured kits above can act basis forming other soaring groups should further remind think con test circuit cross-country trek can local local clubs would organize groups newcomer soaring column think contests have thermals under belts may re-emphasized current World Champion Skip Miller started RC Soaring just little over year ago kinda makes us want take up bowling Bumblebees cannot fly Some years ago group aerodynamicists got together proved bee could fly because its wing loading few other factors explained bee didnt know little hummer went out flew anyway few issues back column reported speed record sailplanes 188 mph set Werner Sitar Austria us raised eyebrows column ever got reader reaction Among screamed foul 86 Model Aviation SC2 SC2 made up nine soaring clubs San Fernando Valley Silent

Top The Liberty-engined Fokker IV just before its approximately 27-hour trip Roosevelt Field NY San Diego Note cockpit position alongside engine pilot must have deafened time reached Coast Above Model before its Nats win ONE OF significant milestones American aviation history first nonstop coast-to-coast airplane flight made May 2-3 1923 Army lieu tenants J Macready 0 G Kelly left Roosevelt Field New York May 2 1136 am arrived some 26 hours 50 minutes later San Diego California appreciate technical skill bravery exhibited Kelly Macreadys flight must realize done electronic navigation aids aeronautical maps against prevailing West East winds course flight could have possible excellent perform ance Fokker F IV airplane Liberty V-12 engine F IV early aircraft long line Fokker transport airplane designs Army took delivery two F IV airplanes 1922 designating T-2 transport other A-2 ambulance T-2 fol lowed successful Fokker design formula featured all-wood cantilever wing welded steel-tube fabric-covered fuselage tail features evolved successful fighter plane designs Fokker produced during World War wing T-2 said en largement wing Fokker D VIII fighter plane just entering German service war ended Much credit design must go Reinhold Platz Fokkers chief de signer However Anthony Fokker chief test pilot severest critic own companys designs Consequently Fokker airplanes known ex cellent handling rugged dependability excellent performance introduction successful elec tric powerplants model airplanes came very interested application free-flight scale promised some outstanding advantages such instant starting no exhaust mess no cooling air requirements Several unsuccessful electric-powered models tried learned number valuable lessons First unless love tinker stick 38 Model Aviation powerplants market well engineered will give perform ance promised advertisements Second dont take short cuts battery charging system dry lantern battery will charge flight batteries full potential powerplant wont realized unless wetcell battery charging system used recommended instructions Lastly electric powerplants n6t have power-to-weight capabilities regular / IC 110 150 *eSIO 110 WL 01000 roe aALT nO Sn. tIC WEO OCt oaan WflI NY ean. raw * a COOC liii Tas noN Conan WuasO Tulsa elantoe nan nay TE LEyNSE maSh NYU IS Sana watt t0uo ICe WTEsaI aICO sow. nEt m yaw. ETa 010L0 II ba IWOLICO WILE 1Ta - ham con eI. hal ha lDa fib osoala .oyr.ehDah Cl SCot a. VC5flVtt WSWAsWL Oman oa Obsa CaSt flyaC o..nol how. otTaOt / / / FUSEL4fT00S WECTAN CL AR II GAS Al 7flh1 II Ilant ti~jI 00 OodE 11. aai 0 y Tg S nyan anynto TETCf S AM NOT TO SCALE flat IIC YW 000C AC afl.0Ai NO 924-3 onamC IWTTIWYWOaytOo ER T-2 yo00A00 yo.FOstER L.Thg.Ausstmiu 1922RAM -62 August1977 39 / 4 m 2 glow-plug engines Construction tech niques perfectly satisfactory 049-powered model probably too heavy electric-powered model Gen erally electric powered models should built like rubber-powered models can pose problem free-flight scale competition scale judging rules free-flight scale demand very detailed model colored dope interior details means relatively heavy model However few real airplanes suitable electric free-flight scale generally fall category ultra-light airplanes pio neer airplanes early very long-range airplanes airplanes high power loadings ie lot weight horsepower available Fokker T-2 falls category also has another distinct advantage availability proof-of-scale ma terial book Smithsonian Annals Flight First Nonstop Coast-toCoast Flight Historic T-2 Air plane Louis S Casey still available Government Printing Office contains excellent 3-view drawings photographs plus complete history flight airplanes development After historic flight T-2 flown Smithsonian currently display Numerous other books magazines contain photographs drawings text T-2 its historic flight thing bothered about T-2 subject free flight its very small stabilizer Consequently built small glider scale model T-2 determine minimum tail size would work Although completely scale stabilizer too small slight en largement necessary stable flight glider model also demonstrated basic T-2 design considerable spiral stability near scale dihedral adequate Prior 1976 Nationals model T-2 flown about 50 times con tained no surprises Ive flown free-flight scale events Nationals since late 1960s 1976 event worst conditions ever raining time windy getting dark event flown evening first flight hand-launch between rain showers T-2 performed very well got high enough flight score secure first place Subsequent attempts takeoff successful due wind lift off fine first turn resulted wing tip dragging ground 1976 Na tionals free flight scale event received very little coverage modeling press shame since good field models some good flying under some worst conditions ever Construction construction follows real airplane closely wing sheet balsa fuselage tail built up tissue covered built scale half-inch equals foot weighs about 12 ounces ready fly Wing thing strikes first about T-2 its massive wing large extent wing set Fokker T-2 apart its contemporaries performance made primarily thin plywood sheets formed multiple structural cells root airfoil thick flat-bottomed progressively changed thin undercambered section tips models wing made much same way although quantity ribs smaller save construction time weight Begin making bottom wing skins out medium 1/32 balsa Since wing quite broad two sheets balsa will have butt-glued together form wing skins Now cut out wing ribs jigs 1/16 sheet balsa jigs pinned plan work board locations indicated Pin lower wing skin jigs cement ribs place Add spars leading edge cover top wing 1/32 sheet balsa Build wing panel time because spars wont allow entire wing lay flat plan spars shaped insure correct dihedral built ailerons built over plan conventional manner real airplanes wing covered numerous sheets plywood covered fabric varnished Continued page 84 40 Model Aviation Andrew holding Dads faithful copy historic Fokker Although tail surfaces appear tiny slightly enlarged scalefor sport flying probably should modestly enlarged again Real cantilevered wing said have enlarged wartime Fokker DVIII massive wing leaves dominant impression T-2 Like real plane models wing made thin sheet wood drawing its strength multi-cell design Through glider tests prior building model Tom confirmed near scale dihedral would sufficient U r I-uI-1K~---- U OTITH RIB 3-iilZiiliiATINT RIASJOSA SPATS TICSTCET E~7E TYPICAL EUSALTOFPILOTS WHEEL Qfl~gp II_ jIANIHRTTH~FOR II2P FRE TN Rlt2S12ELECTRIC 1 C fTl z U w ii U ii -U C m 0 NEW FORD TRI MOTOR 1195 Unique because such amazing scale deti kits relatively ~ ways such~edg1~ Mlfljred j yOU 1W see oUr neW two C Wal flOt~er bOO15 0 sP j~oCI yOUV- s clearly shown ~uuing arugnly detailed Plastic Parts touch realism-in-miniature NEW MESSERSCHMITT 495 BEGINNERS ZERO Nifty control line models Theyre easiest ones world assemble-all wood no tissue coveringonly 6 9 parts depending model ex cept Biplanes have few Genuine Nylon motor mount THEYRE AT YOUR DEALER GET OVER AND SEE THEM NOW outboard bevel length tank Out side cross-section dimensions two inches design length tank equals capacity fluid ounces Les McDonald uniflow Rabe Gieseke prefer type tank long bevel Randy Hancock tanks rectangular shape 1 X 2 small bevel starting approximately 2 back end tank 47/g long holds approximately 5 oz fuel todays pattern Fox 35 needs four oz fuel 5 percent nitro Same Max Supertigre 46 275 venturi 10% nitro fuel needs approxi mately 55 oz tank capacity Using 5% OMPLETE THIS FORM ND ATTACH MAILING SUE DEL FROM RECENT LET US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks re quired change address Attach current MA mailing label check appropriate box mail Subscription Dept. Model Aviation 815 Fifteenth St. NW. Washington DC. 20005 Check appropriate boxenclose payment C NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA subscription rates $1200 12 months Canada United States possession elsewhere $1400 NAME ADDRESS CITY/STATEZIP ________________ MODEL AVIATION 815 FIFTEENTH ST. NW. WASHINGTON DC 20005 ready bolt placeComplete control system less handle lines decals landing gear wheels etc makes building cinch assembly literally minutes can use 049 engine nitro usually works better 280 venturi need about 525 oz fuel maybe just 5 oz way re placement venturi available Bob no Hunt CSC Now know will 14 different opinions some above specs good start ing points until can see what works Bill Werwage likes tanks 1 1 wide fuselage feeling have fuel head pressure feed pickup tube 46 means need tank about six inches long try make tank thicker inch may have spray bar-pickup tube problems although Bill has used tanks P/s deep Bill flying HP 40 Ares size last summer using 55- 575-oz uniflow tank Fox 35 ST 46 uses straight muf fler pressure old-fashioned suction type tank alternates between using both vents hooked Y fitting using just vent muffler Dan Shafer Dayton Ohio using HP 40 reports uses uniflow muffler pressure 575-oz tank small wedge rear 280 venturi 10% nitro fuel makes tanks 1 high 1 wide information PAMPA com ments contact Wynn Paul 1640 Maywick Dr Lexing ton KY 40504 Fokker T-2/Stark continued page 40 simulate different shades coloring plywood sheets wing can lightly stained random pattern rectangles scale plywood sheet size Now dope thin strips Silkspan shown plan simulate lap joints real airplanes fabric cover ing entire wing can now covered white Japanese tissue given two three coats clear dope Fuselage Construction old-time builtup few unusual wrinkles First two sides arent identicaL basic structure real airplane visi ble through large windows pre serve scale appearance model du plicates location structural members Instead building side directly top other tradition al side built separately differ ent plan views Also since real air plane built steel tubing model structure cabin area visible through windows should round painted gray Rounded Vs sq balsa used original model visual effect good could improved using 1/16 hardwood dowels uprights other structure cabin areabut longerons After sides com pleted join rear add cross pieces Kraft C clamps excellent purpose help insure squareness nose built primarily sheet balsa thin aluminum covering top bottom bottom covering stalled very small wood screws can removed acess motor charging jack switch can installed bottom covering Suitable aluminum purpose can come clothes-drier ducts available hardware stores modest cost front radiator piece thin plywood held place lip bottom cowl covering Astro 020 motor held TIGER MOTH 1295 84 Model Aviation HIGH POWER ULTRA SONIC CLEANER cleaner has patented Power Pump circuit nearly doubles power over cleaners same 51Z5 Required top performance 2 & 4 quart sizes As shown lass eng & radio S88 Chassis factory asseablad $76 PISTON SETTING TOOL CDX 049 engines HARDENED STEELANODIZED No TRA503$325 MUFF-L-IT SERIES Six eight Ob reduction noise engines Proportional volumne expansion chamber Triple reflective intermediate chamber Large exhaust nozzle low back pressure Little loss power Available B C engines No 301 0919 $749 No 322940$839 No 303 45-80 $949 NEW 112A MUFFLER Fits COX 049 engines new muffler gives significant noise reduction ith cry littie power loss Back facing No 300A049$549 No 30DB051$549 SCHNOERLE enqines place rubberbands held books attached inside nose balsa side pieces VL motor used can screwed former F3 hole former should made slightly smaller fit motor sides cabin area covered light cardboard such file folder notebook separator material win dows cut cardboard covering fuselage should covered Silkspan tissue real airplane cowl ing covered metal sides cowling should covered thin plastic sheet such celluloid clear plastic sheet about 010 015 inch thick painted makes excel lent simulation metal covering cabin has 1/32 sheet balsa floor stained wood color rest cabin area painted light gray Astro Flight battery pack should painted gray set balsa box cabin floor held place rubberbands tached hooks cabin sides location battery approximates size location cabin fuel tank real airplane landing gear made 064 040 music wire quite rigid spring action comes 3/32-in brass tubing axle bound landing gear white elastic thread springing same used real Fokker T-2 other airplanes era landing gear built manner realistic has proven rugged wing held fuselage rub berbands inside fuselage fuselage section view plan shows should hook both wing spars matching hooks attached fuselage structure Split A-in dowel keys should cemented wing notches cut in appropriate places top fuselage longerons wing location does shift method wing attachment avoids externally visible mounting parts allows wing movement impact has proven have very trouble free model tail surfaces ordinary stick con struction built plan covered Japanese tissue Finish fuselage tail given enough coats clear dope just fill tissue give relatively smooth finish painted olive brown Al though color specified olive drab airplanes era much brown greenish olive drab World War II airplanes obtain suit able color can mix two parts Aero Gloss camouflage tan part earth brown markings applied now Refer photographs location fuselage stripingwhich gold let tering also gold window frames Vinyl self-stick shelf paper excellent material making stencils lettering wing insignia Flying model balanced just about right need ballast ever model doesnt balance point shown plan add ballast achieve correct center gravity sure tail surfaces warped Set control surfaces neutral posi tion Hand-glide model over tall grass adjust control surfaces required smooth straight slightly left turn glide Next try powered flight short battery charge will give about ten seconds full power different characteristic electric power get same initial power regardless length battery charging charging time determines duration powered flight climb should left turn model stalls turns right adjust thrust line and/or control surfaces get left turn under power ideal flight pattern model seems open left turn under power straight glide slight right turn glide though T-2 has little dihedral August1977 85 No 175 21 Quart$165 No 176 46 Quart$185 8 oz Detergent$195 qt Detergent$342 THE INVADER 1/12th scale metal car revolution car technology Front rear wheel suspension Uses standard parts Car designed performance Patents applied \ ft ii / -AVAILABLE SOONMufflers rear exhaust can turn quite tightly under power such tight turn isnt realistic article has described competition type free-flight electricpowered scale model design flexible enough some other applications example 020 glow engine would work very well would probably increase performance due its lighter weight interested contest flying stabilizer could enlarged about 15 per cent easier adjusting cabin area quite roomy could easily hold radio control set 049 glow engine light radio T-2 would lend itself well RC confined space flying Regardless whether build du plicate electric-powered free-flight model suggested modifica tions will rewarded realistic flying replica important historic airplanes As model cruises slowly majestically overhead will reminded inspiring feats American aeronautical herit age RC Soaring/Pruss continued page 25 Flyers SFVSF Soaring Union Los Angeles SU LA Pacific Soaring Associa tion PSA Pasadena Soaring Society PSS Harbor Soaring Society HSS Torrey Pines Gulls TPG Silent Wing Soaring ssociation SWSA Model Avi ation Radio Kontrol Society MARKS Note eight listed hereDJP does SC2 work Clubs long SC2 desire hold contest assigned month hold contest Usually seven contests through out year standardized entry fee $350 per contestant $250 goes club hosting contest $1 SC2 organization $1 used operating expenses raffle prizes yearend awards year-end champion deter mined contest has raw score 3000 points entire contest normalized 1000 points cumulative total normalized scores used year-end championship points con testants best five out seven contests counted What does championship prove obvious person wins championship has flown consistently throughout year 1976 top three finishers flew same plane year Flying same plane getting know has key other championship performances witness Mrlik Heithecker Edberg Rick Pearson Mark Smith current world champion Skip MillerDJP flew unmodified manufactured kits above can act basis forming other soaring groups should further remind think con test circuit cross-country trek can local local clubs would organize groups newcomer soaring column think contests have thermals under belts may re-emphasized current World Champion Skip Miller started RC Soaring just little over year ago kinda makes us want take up bowling Bumblebees cannot fly Some years ago group aerodynamicists got together proved bee could fly because its wing loading few other factors explained bee didnt know little hummer went out flew anyway few issues back column reported speed record sailplanes 188 mph set Werner Sitar Austria us raised eyebrows column ever got reader reaction Among screamed foul 86 Model Aviation SC2 SC2 made up nine soaring clubs San Fernando Valley Silent