CONTROL LINE AEROBATICS OVER THE YEARS have mentioned Tom Deville name past early 1950s Tom exceptionally competitive modeler New York/New Jersey area flying Stunt times Dynajet Stunt real achievement days biggest achievements both survived growing up streets New York Tom called recently chat about old times pass some information about current work youth groups New Orleans Tom wife use modeling hold kids interest keeping children away epidemic plaguing Americas youth drugs Tom says have very successful need supplies model-associated sources keep going past individuals manufacturers have contributed such K&B Smith Industries Great Planes Sig Du-Bro continuing need must solicit everyones help Tom will take anything would like contribute kits engines Balsa pmnt coverings parts pieces etc Whatever cant use will put worthwhile use anything everything truly welcome Contact Tom Deville 1325 Franklin Ave New Orleans LA 70117 Tom would also like hear friends old days such George Fong Since beginning Vintage Stunt movement event organizers have tried get famous fliers beginnings attend big meets Continued page 137 Omaha Nebraskas Gary Hetrick ProfileStunt Beechcraft Mentor Fox 35 Sig Twister wing Photo Bob Furr kids Tom DeVilles youth group proudly display handiwork youth group need modeling supplies contributions indi viduals manufacturers welcome Contact Tom address listed text 124 Model Aviation Barons developmental design Bare Cat powered low-timed Nelson 15 uses low-pitch prop World champ Paul Walkers 93-ounce B-17 stunter has four Author has heard Barons engine rpm 21000 05 158 disassembles easy transportation rangebut still some tank problems sort out FF Old-Timers/Baker Continued page 118 Winters Wog Good Brothers Guff winning free flight no relation RC ship same name Strucks Record Hound Taibi s Green Hornet Sunduster Jersey Javelin Raider Michiel La Tone Gladiator Maurice Schoenbrun designer Theoradical Flounder Vangard 66 Skyrocket Zombie Reich Albatross George Reich would very good designs often seen Some have never seen field would point out have thrust line high up near leading edge would trim out like Starduster left power glide Finishing out frequent winners A/B Cabin-Fuselage would include So-Long best interesting Buzzard Bombshell among few make list good ones have lifting stabs OK long tail moments relatively small rudders lots polyhedral tend keep rolling climbing handle pitch trim change power way Generally feel aft center gravity CG lifting stab mark model can reliably trimmed out high power low power levels OldTimer well almost can trimmed outwe talking competition free flight B Pylon popular designs Zipper Gas Bird Alertthe latter probably bestand Playboy Junior Although Im running out space will have continue next time OK because want input especially need thoughts rubber models classes pretty well know good ones frequent winners what sleepers know Before get hook pull off stage want tell about yet another plans catalog Allen HuntBox 726 Dunbar West Virginia 25064and costs $4 refundable first order over 2400 plans listed have sketches catalog can see what some obscure designs look like such design Pushover created about third century ago published MAN has long out print am glad see someone making available Pushover all-sheet balsa pusher Pee Wee 020 powerno contest model stable cute have often thought making C02 Electric lost twice first time landed 23 miles away second time didnt come back dont know far went very active contest flier time made fun-flying small fieldsort like Joe Wagners Dakota felt glide floaty enough worry about thermals.NOT Well make send photo got nice photo letter Steve Staples Associate VP AMA saying Pushover design first successful model 30 plus building years ago digressback catalog has lot Scale including Ace Whitman-Joe Ott stuff should see very nice plans light practical structures other kit magazine plans Scale Duration gas rubber Control Line etc unique feature inclusion some plans scale like Scientific Firefly original 25-inch span also 36-inch span Earl Stahl Rubber Scale models offered enlarged great fliers way Keep helping out folks erobaticslMcMillan Continued page 124 swap stories new old fliers alike As Ive mentioned times column unless youve experienced missing great time Its history after movement ensure happens sixth Vintage Stunt Championship beyond being aggressively promoted Walt Pyron well-known flier era himself Walt seeking build up fund sponsor people contests interested contact Walt Pyron PO Box 99-0894 Redding CA 96099-0894 Tel 916 244-0140 weekends oaly Tech Tips Some useful flight trimming occurs after Nationals particular case Id like pass something well-known subject little twist trimming engine optimum performance years word has out ensure motor runs same whether upright inverted Years ago didnt worry about Foxes just bolted down one-inch tank height took care run until mounts compressed old days good fliers knew much about motor trim Now fliers design convenient way shim tank adjust internal plumbing effect change another point column Id like address symptoms effects recognize deal Certainly common method looking engine characteristics timing laps both upright inverted making adjustment generally good starting pointwith some caveats First some underlying assumptions variables Consistency both actual timing engine run will net some reasonable results motor run changing time different places flight may reach proper conclusions Also really need digital stop watch measures Yioo second capture meaningful data establish maintain motor performance data base compare times several initial upright laps times several inverted laps during practice session As aside session monitor motor during season because motor runs have known change due weather also major contests altitude significantly different usual flying site addition check progress run during flight check motor progressively running harder indicates possible heating problem Note slight slowing near end flight more-orless normal uniflow tank setup Now lets get some observations trimming process youve reached point tank adjustment lap timing very close equal worst less half tenth second can remember long time used intentionally set ST 46 ST 60 tenth faster inverted help outside square tops Now looking exactly equal next step another example analyzing situation subtle can affect overall pattern Note inside outside rounds reasonable wind ask yourself noticeable difference feel maneuvers What youre looking set softer otherusually outside times model will tend accelerate insides yet controllable outside means need move tank slightly higher plane until no disceruable difference opposite course requires opposite correction werent bang trim before what will have after adjustments real feeling niceness true scientific term characteristics will precise motor reacts loading maneuvers comes off Once have model working way will want persevere model really get setting correct engine/tank/model combination variables wise keep track numbers good ballpark setting work new models youll close right start metal tanks use measure distance engine mounting plate top feed tube convenient parameter measure using depth feature dial caliper Yes can notice adjustment ten thousandths inch number Im using OPS 40/ pipe 520 whole idea once know what works have high probability Continued page 166 March 1994 137 DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs 316-page history US aeromodeling 4 es models famous contests first twin pusher ugliest Stik youve hobby 25 years life $1995 dealer postpaid cash check V/MC Pony X Press S Monticello Drive Albuquerque NM 87123 505 299-8749 Also available Thornburgs OLD BUZZARDS SOARING BOOK $1695 pp RADIO SOUTH---- 5524 N Palafox Pensacola FL 32503 Al Special Paper flT E asiest Hinge InstallPleat s No pinning messy epoxyInstant glues neededSp specIal hinge slotter needede No alignment necessary THIS NEW WELL DESIGNED SAFETY ITEM PROVIDES POSITIVE SECURELY LOCKED CONNECTION SNAP ACTION PROVIDES FOR OUICK AND EASY INSTALLATION AND REMOVAL OP THE SAFETY CLIP WHEN YOU UNPLUG THE CLIP CAN RE INSTALLED ON THE LARGER PORTION OF THE PLUG FOR SAFEKEEPING FOR USE ON PLANES HELICOPTERS CARS AND BOATS C CONSTRUCTED OF NYLON FOR LIFETIME USE U THREE SAFETY CLIPS SUPPLIED PER PACKAGE FOR USE ON BArrERY PACK AND AILERON PLUGS OR EXTENSIONS PACKAGE PRICE 9 Pp reons Model FobS J Cirros CFJP Hitec Kyosho Aristocrsft5 ISlissIHTP JR IRP CL AerobaticslMcMillan Continued page 137 repeated good runs Corrections Apologies has called attention have slighted prominent Junior fliers Derek Barry misspelling name recognizing performance worked hard achieve past Nationals extend sincerest apologies Derek father Dale EFFINGER SAYS 1/4 SCALE WORLD WARI Only PIann Pattern give boo roe assorted ALBATROS DNA deoght boo sooht hsoe seleoreo best clossic 89 solog spao /8 Ieogth deslgos oil hrhe ooo choose hoer poffeols 2072 sq lb cr09 oreo 3 CID Part ore mPorront exclusive teotore exoines SC bs GIANT 1/3 SCALERCQ0-t7S24bb CESSNA 170 -5A 1440400 SPOO ehath rhZ7c-~80 1/2 cr109 spoc sq 10 sOlo sciog oreo oc 70 22 eogloes OCOO-7$2490 cogihes bs 8C30-5SPAD C-XIII 03490791/4 oiog spas sq 0 osieg MONOCOUPE 90Aoreo 2 1 exoixes PCQO-8 128 selho sporr eoght $2790 sq lb slog area 30 dCFOKKER DR-i TRIPLANE eogioes 8C30-402990...72 orlhgspoh 1772 sq lb 040 1/S SCALE 9C004 01990sThtO22ehgIoes PCQO-6S2490 PIPER WI-PACER PA-22SOPWITII CAMEL 1193/8oshgsparr 23bbsqiooriogoreo 20103084oobgspoh sqloosirrgareo ebaihes oh PC 12 lbs 8 oceroll 11 lbs 040 PC rcood & Balsa leogIb 9C303 02990 Coostroctlox RCQS-l 1 495 1/5 SCALE PCOO-3 01990 FOKKER D-VII PIPER CUE J388 osrog spox sq 10 04og area 119 sf08 5000 eogIb s90.90to20 CO ehghes oh PC slhgoreo 406 PC 30 CIOlbs PCQS0 eoGlhes02490 8C30-2 02995NIEUPORT 28 FAIRCHILD 2480 1/2osrhpspoo- 1660sq 140 0409 5P00 PC 30 CID0 scog areo- 781023 CID cogixe bs oslo PC 01610 hes-4chPC-11 lbs Loe Versiocs PC3O-6. 03495SCOS-iP 90 1/4 SCALE GOLDEN AGE CURliSS HAWK PlC 94 1/2 cr109 Spob eogIb sq 0 osiog orea 131023 808085 400 PC PCQS14 . 02495 CURliSS FALCON 01B/A3 114 0409 spab esath sq 10 soleg arco PC 0 eogioes PCOO-1302995 WACO D 1930S COMMERCIAL & MIlEory Expoil 98osiogspoo l2lbs4o6 PC 121023 exploes SCOS-lO02795 Fiberglass Coosi Wheel Pools & Foliog Aboilablel 1/6 SCALE AERONCA C-3 72 oriog spax 40 CIO exploes bs os/o PC RC6S-701495 1/3 SCALE RC30702990 CESSNA 170 FAIRCHILD 24 72 3/4 dog spoo 60 esgihes PC6O6$1490 NEW FOKKER D-VIII 83 5/S osog spec 1382 S9 10 dlOQ areo 3 CIO eogioes PC bs os/o PC EalsO/Plyosood o 004 eosy field asseroble One-piece wing SCOS-iP02495 166 Model Aviation -Max Speed Control lViE 147 new electronic throttle smallest & lightest ever built Designed electric p lanes 01 15 size motors Mini-Max will handle up 30 amp loads 50 amp peak 1 16 cells Weighs 1 ounce measures 15by Jby 45 thick Features High rate auto setup brake high-temp shutdown microprocessor control efficient low-loss Mosfet transistors & extensive glitch-stopping software program Includes sheet alumninum heasink JR reciever lead Sermos connectors motor battery leads Inioductory p rice $7995 &H JOMAR PRODUCTS 3440 Riverhills Cinti OH 45244 Call 513-271-3903 Visa c MC Accepted RC *24eIpkg 18 5 Scale *449Ipkg 24 use cyanacrylate adhesives available local hobby shop call 904-434-0909 PI S fesy Par5on5 Product5 P0 Rex 82838 Epson Roege LA 70884 2038 . pksg noIIIngIebet Nesire 5150 W E TECHNICAL SERVICES P 0 Box 30246 Island GA 31561
Edition: Model Aviation - 1994/03
Page Numbers: 124, 137, 166
Edition: Model Aviation - 1994/03
Page Numbers: 124, 137, 166
CONTROL LINE AEROBATICS OVER THE YEARS have mentioned Tom Deville name past early 1950s Tom exceptionally competitive modeler New York/New Jersey area flying Stunt times Dynajet Stunt real achievement days biggest achievements both survived growing up streets New York Tom called recently chat about old times pass some information about current work youth groups New Orleans Tom wife use modeling hold kids interest keeping children away epidemic plaguing Americas youth drugs Tom says have very successful need supplies model-associated sources keep going past individuals manufacturers have contributed such K&B Smith Industries Great Planes Sig Du-Bro continuing need must solicit everyones help Tom will take anything would like contribute kits engines Balsa pmnt coverings parts pieces etc Whatever cant use will put worthwhile use anything everything truly welcome Contact Tom Deville 1325 Franklin Ave New Orleans LA 70117 Tom would also like hear friends old days such George Fong Since beginning Vintage Stunt movement event organizers have tried get famous fliers beginnings attend big meets Continued page 137 Omaha Nebraskas Gary Hetrick ProfileStunt Beechcraft Mentor Fox 35 Sig Twister wing Photo Bob Furr kids Tom DeVilles youth group proudly display handiwork youth group need modeling supplies contributions indi viduals manufacturers welcome Contact Tom address listed text 124 Model Aviation Barons developmental design Bare Cat powered low-timed Nelson 15 uses low-pitch prop World champ Paul Walkers 93-ounce B-17 stunter has four Author has heard Barons engine rpm 21000 05 158 disassembles easy transportation rangebut still some tank problems sort out FF Old-Timers/Baker Continued page 118 Winters Wog Good Brothers Guff winning free flight no relation RC ship same name Strucks Record Hound Taibi s Green Hornet Sunduster Jersey Javelin Raider Michiel La Tone Gladiator Maurice Schoenbrun designer Theoradical Flounder Vangard 66 Skyrocket Zombie Reich Albatross George Reich would very good designs often seen Some have never seen field would point out have thrust line high up near leading edge would trim out like Starduster left power glide Finishing out frequent winners A/B Cabin-Fuselage would include So-Long best interesting Buzzard Bombshell among few make list good ones have lifting stabs OK long tail moments relatively small rudders lots polyhedral tend keep rolling climbing handle pitch trim change power way Generally feel aft center gravity CG lifting stab mark model can reliably trimmed out high power low power levels OldTimer well almost can trimmed outwe talking competition free flight B Pylon popular designs Zipper Gas Bird Alertthe latter probably bestand Playboy Junior Although Im running out space will have continue next time OK because want input especially need thoughts rubber models classes pretty well know good ones frequent winners what sleepers know Before get hook pull off stage want tell about yet another plans catalog Allen HuntBox 726 Dunbar West Virginia 25064and costs $4 refundable first order over 2400 plans listed have sketches catalog can see what some obscure designs look like such design Pushover created about third century ago published MAN has long out print am glad see someone making available Pushover all-sheet balsa pusher Pee Wee 020 powerno contest model stable cute have often thought making C02 Electric lost twice first time landed 23 miles away second time didnt come back dont know far went very active contest flier time made fun-flying small fieldsort like Joe Wagners Dakota felt glide floaty enough worry about thermals.NOT Well make send photo got nice photo letter Steve Staples Associate VP AMA saying Pushover design first successful model 30 plus building years ago digressback catalog has lot Scale including Ace Whitman-Joe Ott stuff should see very nice plans light practical structures other kit magazine plans Scale Duration gas rubber Control Line etc unique feature inclusion some plans scale like Scientific Firefly original 25-inch span also 36-inch span Earl Stahl Rubber Scale models offered enlarged great fliers way Keep helping out folks erobaticslMcMillan Continued page 124 swap stories new old fliers alike As Ive mentioned times column unless youve experienced missing great time Its history after movement ensure happens sixth Vintage Stunt Championship beyond being aggressively promoted Walt Pyron well-known flier era himself Walt seeking build up fund sponsor people contests interested contact Walt Pyron PO Box 99-0894 Redding CA 96099-0894 Tel 916 244-0140 weekends oaly Tech Tips Some useful flight trimming occurs after Nationals particular case Id like pass something well-known subject little twist trimming engine optimum performance years word has out ensure motor runs same whether upright inverted Years ago didnt worry about Foxes just bolted down one-inch tank height took care run until mounts compressed old days good fliers knew much about motor trim Now fliers design convenient way shim tank adjust internal plumbing effect change another point column Id like address symptoms effects recognize deal Certainly common method looking engine characteristics timing laps both upright inverted making adjustment generally good starting pointwith some caveats First some underlying assumptions variables Consistency both actual timing engine run will net some reasonable results motor run changing time different places flight may reach proper conclusions Also really need digital stop watch measures Yioo second capture meaningful data establish maintain motor performance data base compare times several initial upright laps times several inverted laps during practice session As aside session monitor motor during season because motor runs have known change due weather also major contests altitude significantly different usual flying site addition check progress run during flight check motor progressively running harder indicates possible heating problem Note slight slowing near end flight more-orless normal uniflow tank setup Now lets get some observations trimming process youve reached point tank adjustment lap timing very close equal worst less half tenth second can remember long time used intentionally set ST 46 ST 60 tenth faster inverted help outside square tops Now looking exactly equal next step another example analyzing situation subtle can affect overall pattern Note inside outside rounds reasonable wind ask yourself noticeable difference feel maneuvers What youre looking set softer otherusually outside times model will tend accelerate insides yet controllable outside means need move tank slightly higher plane until no disceruable difference opposite course requires opposite correction werent bang trim before what will have after adjustments real feeling niceness true scientific term characteristics will precise motor reacts loading maneuvers comes off Once have model working way will want persevere model really get setting correct engine/tank/model combination variables wise keep track numbers good ballpark setting work new models youll close right start metal tanks use measure distance engine mounting plate top feed tube convenient parameter measure using depth feature dial caliper Yes can notice adjustment ten thousandths inch number Im using OPS 40/ pipe 520 whole idea once know what works have high probability Continued page 166 March 1994 137 DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs 316-page history US aeromodeling 4 es models famous contests first twin pusher ugliest Stik youve hobby 25 years life $1995 dealer postpaid cash check V/MC Pony X Press S Monticello Drive Albuquerque NM 87123 505 299-8749 Also available Thornburgs OLD BUZZARDS SOARING BOOK $1695 pp RADIO SOUTH---- 5524 N Palafox Pensacola FL 32503 Al Special Paper flT E asiest Hinge InstallPleat s No pinning messy epoxyInstant glues neededSp specIal hinge slotter needede No alignment necessary THIS NEW WELL DESIGNED SAFETY ITEM PROVIDES POSITIVE SECURELY LOCKED CONNECTION SNAP ACTION PROVIDES FOR OUICK AND EASY INSTALLATION AND REMOVAL OP THE SAFETY CLIP WHEN YOU UNPLUG THE CLIP CAN RE INSTALLED ON THE LARGER PORTION OF THE PLUG FOR SAFEKEEPING FOR USE ON PLANES HELICOPTERS CARS AND BOATS C CONSTRUCTED OF NYLON FOR LIFETIME USE U THREE SAFETY CLIPS SUPPLIED PER PACKAGE FOR USE ON BArrERY PACK AND AILERON PLUGS OR EXTENSIONS PACKAGE PRICE 9 Pp reons Model FobS J Cirros CFJP Hitec Kyosho Aristocrsft5 ISlissIHTP JR IRP CL AerobaticslMcMillan Continued page 137 repeated good runs Corrections Apologies has called attention have slighted prominent Junior fliers Derek Barry misspelling name recognizing performance worked hard achieve past Nationals extend sincerest apologies Derek father Dale EFFINGER SAYS 1/4 SCALE WORLD WARI Only PIann Pattern give boo roe assorted ALBATROS DNA deoght boo sooht hsoe seleoreo best clossic 89 solog spao /8 Ieogth deslgos oil hrhe ooo choose hoer poffeols 2072 sq lb cr09 oreo 3 CID Part ore mPorront exclusive teotore exoines SC bs GIANT 1/3 SCALERCQ0-t7S24bb CESSNA 170 -5A 1440400 SPOO ehath rhZ7c-~80 1/2 cr109 spoc sq 10 sOlo sciog oreo oc 70 22 eogloes OCOO-7$2490 cogihes bs 8C30-5SPAD C-XIII 03490791/4 oiog spas sq 0 osieg MONOCOUPE 90Aoreo 2 1 exoixes PCQO-8 128 selho sporr eoght $2790 sq lb slog area 30 dCFOKKER DR-i TRIPLANE eogioes 8C30-402990...72 orlhgspoh 1772 sq lb 040 1/S SCALE 9C004 01990sThtO22ehgIoes PCQO-6S2490 PIPER WI-PACER PA-22SOPWITII CAMEL 1193/8oshgsparr 23bbsqiooriogoreo 20103084oobgspoh sqloosirrgareo ebaihes oh PC 12 lbs 8 oceroll 11 lbs 040 PC rcood & Balsa leogIb 9C303 02990 Coostroctlox RCQS-l 1 495 1/5 SCALE PCOO-3 01990 FOKKER D-VII PIPER CUE J388 osrog spox sq 10 04og area 119 sf08 5000 eogIb s90.90to20 CO ehghes oh PC slhgoreo 406 PC 30 CIOlbs PCQS0 eoGlhes02490 8C30-2 02995NIEUPORT 28 FAIRCHILD 2480 1/2osrhpspoo- 1660sq 140 0409 5P00 PC 30 CID0 scog areo- 781023 CID cogixe bs oslo PC 01610 hes-4chPC-11 lbs Loe Versiocs PC3O-6. 03495SCOS-iP 90 1/4 SCALE GOLDEN AGE CURliSS HAWK PlC 94 1/2 cr109 Spob eogIb sq 0 osiog orea 131023 808085 400 PC PCQS14 . 02495 CURliSS FALCON 01B/A3 114 0409 spab esath sq 10 soleg arco PC 0 eogioes PCOO-1302995 WACO D 1930S COMMERCIAL & MIlEory Expoil 98osiogspoo l2lbs4o6 PC 121023 exploes SCOS-lO02795 Fiberglass Coosi Wheel Pools & Foliog Aboilablel 1/6 SCALE AERONCA C-3 72 oriog spax 40 CIO exploes bs os/o PC RC6S-701495 1/3 SCALE RC30702990 CESSNA 170 FAIRCHILD 24 72 3/4 dog spoo 60 esgihes PC6O6$1490 NEW FOKKER D-VIII 83 5/S osog spec 1382 S9 10 dlOQ areo 3 CIO eogioes PC bs os/o PC EalsO/Plyosood o 004 eosy field asseroble One-piece wing SCOS-iP02495 166 Model Aviation -Max Speed Control lViE 147 new electronic throttle smallest & lightest ever built Designed electric p lanes 01 15 size motors Mini-Max will handle up 30 amp loads 50 amp peak 1 16 cells Weighs 1 ounce measures 15by Jby 45 thick Features High rate auto setup brake high-temp shutdown microprocessor control efficient low-loss Mosfet transistors & extensive glitch-stopping software program Includes sheet alumninum heasink JR reciever lead Sermos connectors motor battery leads Inioductory p rice $7995 &H JOMAR PRODUCTS 3440 Riverhills Cinti OH 45244 Call 513-271-3903 Visa c MC Accepted RC *24eIpkg 18 5 Scale *449Ipkg 24 use cyanacrylate adhesives available local hobby shop call 904-434-0909 PI S fesy Par5on5 Product5 P0 Rex 82838 Epson Roege LA 70884 2038 . pksg noIIIngIebet Nesire 5150 W E TECHNICAL SERVICES P 0 Box 30246 Island GA 31561
Edition: Model Aviation - 1994/03
Page Numbers: 124, 137, 166
CONTROL LINE AEROBATICS OVER THE YEARS have mentioned Tom Deville name past early 1950s Tom exceptionally competitive modeler New York/New Jersey area flying Stunt times Dynajet Stunt real achievement days biggest achievements both survived growing up streets New York Tom called recently chat about old times pass some information about current work youth groups New Orleans Tom wife use modeling hold kids interest keeping children away epidemic plaguing Americas youth drugs Tom says have very successful need supplies model-associated sources keep going past individuals manufacturers have contributed such K&B Smith Industries Great Planes Sig Du-Bro continuing need must solicit everyones help Tom will take anything would like contribute kits engines Balsa pmnt coverings parts pieces etc Whatever cant use will put worthwhile use anything everything truly welcome Contact Tom Deville 1325 Franklin Ave New Orleans LA 70117 Tom would also like hear friends old days such George Fong Since beginning Vintage Stunt movement event organizers have tried get famous fliers beginnings attend big meets Continued page 137 Omaha Nebraskas Gary Hetrick ProfileStunt Beechcraft Mentor Fox 35 Sig Twister wing Photo Bob Furr kids Tom DeVilles youth group proudly display handiwork youth group need modeling supplies contributions indi viduals manufacturers welcome Contact Tom address listed text 124 Model Aviation Barons developmental design Bare Cat powered low-timed Nelson 15 uses low-pitch prop World champ Paul Walkers 93-ounce B-17 stunter has four Author has heard Barons engine rpm 21000 05 158 disassembles easy transportation rangebut still some tank problems sort out FF Old-Timers/Baker Continued page 118 Winters Wog Good Brothers Guff winning free flight no relation RC ship same name Strucks Record Hound Taibi s Green Hornet Sunduster Jersey Javelin Raider Michiel La Tone Gladiator Maurice Schoenbrun designer Theoradical Flounder Vangard 66 Skyrocket Zombie Reich Albatross George Reich would very good designs often seen Some have never seen field would point out have thrust line high up near leading edge would trim out like Starduster left power glide Finishing out frequent winners A/B Cabin-Fuselage would include So-Long best interesting Buzzard Bombshell among few make list good ones have lifting stabs OK long tail moments relatively small rudders lots polyhedral tend keep rolling climbing handle pitch trim change power way Generally feel aft center gravity CG lifting stab mark model can reliably trimmed out high power low power levels OldTimer well almost can trimmed outwe talking competition free flight B Pylon popular designs Zipper Gas Bird Alertthe latter probably bestand Playboy Junior Although Im running out space will have continue next time OK because want input especially need thoughts rubber models classes pretty well know good ones frequent winners what sleepers know Before get hook pull off stage want tell about yet another plans catalog Allen HuntBox 726 Dunbar West Virginia 25064and costs $4 refundable first order over 2400 plans listed have sketches catalog can see what some obscure designs look like such design Pushover created about third century ago published MAN has long out print am glad see someone making available Pushover all-sheet balsa pusher Pee Wee 020 powerno contest model stable cute have often thought making C02 Electric lost twice first time landed 23 miles away second time didnt come back dont know far went very active contest flier time made fun-flying small fieldsort like Joe Wagners Dakota felt glide floaty enough worry about thermals.NOT Well make send photo got nice photo letter Steve Staples Associate VP AMA saying Pushover design first successful model 30 plus building years ago digressback catalog has lot Scale including Ace Whitman-Joe Ott stuff should see very nice plans light practical structures other kit magazine plans Scale Duration gas rubber Control Line etc unique feature inclusion some plans scale like Scientific Firefly original 25-inch span also 36-inch span Earl Stahl Rubber Scale models offered enlarged great fliers way Keep helping out folks erobaticslMcMillan Continued page 124 swap stories new old fliers alike As Ive mentioned times column unless youve experienced missing great time Its history after movement ensure happens sixth Vintage Stunt Championship beyond being aggressively promoted Walt Pyron well-known flier era himself Walt seeking build up fund sponsor people contests interested contact Walt Pyron PO Box 99-0894 Redding CA 96099-0894 Tel 916 244-0140 weekends oaly Tech Tips Some useful flight trimming occurs after Nationals particular case Id like pass something well-known subject little twist trimming engine optimum performance years word has out ensure motor runs same whether upright inverted Years ago didnt worry about Foxes just bolted down one-inch tank height took care run until mounts compressed old days good fliers knew much about motor trim Now fliers design convenient way shim tank adjust internal plumbing effect change another point column Id like address symptoms effects recognize deal Certainly common method looking engine characteristics timing laps both upright inverted making adjustment generally good starting pointwith some caveats First some underlying assumptions variables Consistency both actual timing engine run will net some reasonable results motor run changing time different places flight may reach proper conclusions Also really need digital stop watch measures Yioo second capture meaningful data establish maintain motor performance data base compare times several initial upright laps times several inverted laps during practice session As aside session monitor motor during season because motor runs have known change due weather also major contests altitude significantly different usual flying site addition check progress run during flight check motor progressively running harder indicates possible heating problem Note slight slowing near end flight more-orless normal uniflow tank setup Now lets get some observations trimming process youve reached point tank adjustment lap timing very close equal worst less half tenth second can remember long time used intentionally set ST 46 ST 60 tenth faster inverted help outside square tops Now looking exactly equal next step another example analyzing situation subtle can affect overall pattern Note inside outside rounds reasonable wind ask yourself noticeable difference feel maneuvers What youre looking set softer otherusually outside times model will tend accelerate insides yet controllable outside means need move tank slightly higher plane until no disceruable difference opposite course requires opposite correction werent bang trim before what will have after adjustments real feeling niceness true scientific term characteristics will precise motor reacts loading maneuvers comes off Once have model working way will want persevere model really get setting correct engine/tank/model combination variables wise keep track numbers good ballpark setting work new models youll close right start metal tanks use measure distance engine mounting plate top feed tube convenient parameter measure using depth feature dial caliper Yes can notice adjustment ten thousandths inch number Im using OPS 40/ pipe 520 whole idea once know what works have high probability Continued page 166 March 1994 137 DO YOU SPEAK MODEL AIRPLANE Its Dave Thomburgs 316-page history US aeromodeling 4 es models famous contests first twin pusher ugliest Stik youve hobby 25 years life $1995 dealer postpaid cash check V/MC Pony X Press S Monticello Drive Albuquerque NM 87123 505 299-8749 Also available Thornburgs OLD BUZZARDS SOARING BOOK $1695 pp RADIO SOUTH---- 5524 N Palafox Pensacola FL 32503 Al Special Paper flT E asiest Hinge InstallPleat s No pinning messy epoxyInstant glues neededSp specIal hinge slotter needede No alignment necessary THIS NEW WELL DESIGNED SAFETY ITEM PROVIDES POSITIVE SECURELY LOCKED CONNECTION SNAP ACTION PROVIDES FOR OUICK AND EASY INSTALLATION AND REMOVAL OP THE SAFETY CLIP WHEN YOU UNPLUG THE CLIP CAN RE INSTALLED ON THE LARGER PORTION OF THE PLUG FOR SAFEKEEPING FOR USE ON PLANES HELICOPTERS CARS AND BOATS C CONSTRUCTED OF NYLON FOR LIFETIME USE U THREE SAFETY CLIPS SUPPLIED PER PACKAGE FOR USE ON BArrERY PACK AND AILERON PLUGS OR EXTENSIONS PACKAGE PRICE 9 Pp reons Model FobS J Cirros CFJP Hitec Kyosho Aristocrsft5 ISlissIHTP JR IRP CL AerobaticslMcMillan Continued page 137 repeated good runs Corrections Apologies has called attention have slighted prominent Junior fliers Derek Barry misspelling name recognizing performance worked hard achieve past Nationals extend sincerest apologies Derek father Dale EFFINGER SAYS 1/4 SCALE WORLD WARI Only PIann Pattern give boo roe assorted ALBATROS DNA deoght boo sooht hsoe seleoreo best clossic 89 solog spao /8 Ieogth deslgos oil hrhe ooo choose hoer poffeols 2072 sq lb cr09 oreo 3 CID Part ore mPorront exclusive teotore exoines SC bs GIANT 1/3 SCALERCQ0-t7S24bb CESSNA 170 -5A 1440400 SPOO ehath rhZ7c-~80 1/2 cr109 spoc sq 10 sOlo sciog oreo oc 70 22 eogloes OCOO-7$2490 cogihes bs 8C30-5SPAD C-XIII 03490791/4 oiog spas sq 0 osieg MONOCOUPE 90Aoreo 2 1 exoixes PCQO-8 128 selho sporr eoght $2790 sq lb slog area 30 dCFOKKER DR-i TRIPLANE eogioes 8C30-402990...72 orlhgspoh 1772 sq lb 040 1/S SCALE 9C004 01990sThtO22ehgIoes PCQO-6S2490 PIPER WI-PACER PA-22SOPWITII CAMEL 1193/8oshgsparr 23bbsqiooriogoreo 20103084oobgspoh sqloosirrgareo ebaihes oh PC 12 lbs 8 oceroll 11 lbs 040 PC rcood & Balsa leogIb 9C303 02990 Coostroctlox RCQS-l 1 495 1/5 SCALE PCOO-3 01990 FOKKER D-VII PIPER CUE J388 osrog spox sq 10 04og area 119 sf08 5000 eogIb s90.90to20 CO ehghes oh PC slhgoreo 406 PC 30 CIOlbs PCQS0 eoGlhes02490 8C30-2 02995NIEUPORT 28 FAIRCHILD 2480 1/2osrhpspoo- 1660sq 140 0409 5P00 PC 30 CID0 scog areo- 781023 CID cogixe bs oslo PC 01610 hes-4chPC-11 lbs Loe 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