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The Engine Shop

Author: J. Wagner


Edition: Model Aviation - 1998/11
Page Numbers: 67, 68, 73, 74, 77

U Joe Wagner TtZ7x Ltizr7ux L~p BECAUSE THIS COLUMN will coming out roughly same time AMAs Celebration Pioneers Im going devote model airplane engines got Gas Model flying started Old-Timer spark-ignition types still provide motive power models today such popular SAM Society Antique Modelers Free Flight events Primitive miniature gas engines have used flying model airplanes since before World War didnt become obtainable average model fliers until mid-1930s Brown Junior 60 manufactured Philadelphia Baby Cyclone 36 made Los Angeles first appeared Americas hobby shops darkest days Depression era working man felt lucky earn $25 week Brown Jrs $2150 price tag put beyond reach modelers Baby Cyclone sold little less Still two pioneer power plants hauled enough gas models aloft stir up deep desire engine power among Americas youth Model kit makers partly satisfied desire issuing rubber-powered kits Scientifics $195 Flea onethat designed look like gassies came turned hardwood parts constructing dummy engine included ratchet-like gizmo installed rear propeller simulate sound gas engine During next few years Americas economic climate gradually improved model engine prices dropped numbers grew slowly 1938 engines such Ten-Dollar Brown Dennymite 57 Trojan 19 Bullet 275 Ohlsson & Rice 23 introduced latter four engines priced about $17 complete fuel tank spark plug coil condenser little Ohlsson really made gas modeling popular America far best selling prewar model engines nearly million O&R 23s sold before end 1941 Spark-ignition model engines have never truly easy install operate mention just problem area necessary electrical wiring provided ample opportunity go astray cially teenagers made up majority model fliers Good Old Days prewar model engines approximately 50 readily available American makes models Ohlsson 23 proved friendliest least troublesomeby November1998 67 well-loved Ohlsson 23 Prewar model left postwar right Thousands 50-plus-years-old engines still use First front-rotary model engine 1936 Bill Atwood-designed Baby Cyclone 36 didnt have adjustable spark timing selection justly famous postwar sparkers Back row L-R Ohlsson 60 Super Cyclone 60 Front row OK Super 60 DeLong 30 Arden 099 far common practice Ohisson owners take engines apart put back together needed small screwdriver Crescent wrench True engine disassembly/reassembly done just heck Hardly anyone performed hopping up Ohisson 23s just wasnt much could engine cleverly designed parts failures seldom occurred Still needed spare parts easily inexpensively available some 3400 Official O&R Dealers US 1941 numbers course routinely replaced such items crankcase gaskets point springs insulating washers big advantage prewar model engine tinkerers gained fiddling much power plants educational learned hands-on experience engines worked function various parts causes failure plenty contend spark-ignition components provided trouble Pencell batteries available Good Old Days pitiful quality Most serious gas modelers bought boxes dozen hoping least few would good enough keep engines running flight condensers less reliable days too 68 Model Aviation Bantam Champ 19 well-designed Ben Shereshaw suffered somewhat performance because too-heavy piston Aero-Plys TIM-4 Transistorized Ignition Module plus three-cell Ni-Cd battery pack solve 99% spark-ignition engine running problems Continued page 73 Midwest Aero-Star Kit #159 Wingspan 62 Wing Area 675 sq Flying Weight 5 2 lbs Channels 4 Engine2-Stroke-32- 454-Stroke-40- 56 Engine Shop/Wagner Continued page 68 ignorant realize although battery supplied three volts ignition circuit inductive kick coils primary winding could reach 250 volts course enough zap through waxed-paper insulation model engine condensers short out gas modelers persisted replaced adjusted thatall accumulating valuable engineering experienceuntil achieved success learned solder leaky gasket oily points prevented engine functioning what effect spark timing needle setting performance startability Prewar model airplane engines came wide variety types sizes Between Atom 097 Forster 99 could find engines almost displacement generally popular top limit AMA Engine Classes Ohlsson Bantam 19s Class Forster 29s Class B Super Cyclone OK Ohlsson 60s Class C course thenas nowthe greatest percentage model flying noncompetitive modeler out 10 entered contests Still now competition rules strong effect model engine design became marked late 940s After V-J Day model engines reappeared almost incredible variety offbeat displacementssuch various Bunch 45 engines Mighty Midget Gwin Aero Tiger Aero enjoyed excellent prewar popularity West Coastfell rapidly favor plethora 60-size engines flooded market late 1940s Contestor Fox 59 Hornet Anderson Spitfire McCoy Orwick Atwood Champion New 29s abounded well Torpedo Forster Melcraft OK DeLong Cannon Phantom O&R big advance came Class engines Arden 09 19 set EMS SERVO REVERSER Works AM FM ano radios 4 5 cells Install line servo servo will move opposite W directionl 501750 25 weight 25 ouncel EMS SR-2 connector $1495 wired connectors tsr $1995 F SR 2Y wired iv leg Y harness $2250 ULTIMATE BAlTERY BACKER BEST way insure reliable power model Use two packo Works standard 4 cell 5 cell GEL-CELL packs Battery packs can different capacity like 1 200 600 15 o 1 5 o 75 weight 6 sance $4995 wired connectors $5995 GEARAND DOOR SEQUENCER oprocessor driver device mhich controls sequences landing gear mechanism landing 0 gear doors Works air and/or servo controlled systems Gear servo door servo travel time individeally adjustable trom tall speed 10 secunds Gear doors GLOW DRIVER may remain open ala P-47 close An opto-isolated glew d e ow h ha ensa en aga ns ado after lowering gear ala P-Si Gear noise ON point easily adjustable user enly doesnt move until doors travel fully completed unit small screwdriver Size 1 5 v 15 v 75 Less 1 ounce must ter retract system Size 1 5 v 1 5 v 75 Less Supplied glow-plug wire connector User supplies ewn 1 ounce lvclsdes servo connector receiver $4495 NICAD battery Includes servo connector receiver $4495 Additional EMS Jomar Products Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllamess GS-l Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Bight limer 2995 NEW Stop-Go-LightTM2495 Gear Door Cycler3495 Channel Failsafe3895 Opto -Isolated Electronic Switch3995 Dual E-Switch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Mode Electronic Mixer4495 Glitch Buster/6 Channel Dpto-lsolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor UltralightESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yarba Linda GA 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom NEW MiniMAX4O ESC w/BEC Broke$9995 MiniMAX Original ESC w/Brake7995 Sport MAX ESC8995 SM-4 ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 Ball Bearing Conversion Futaba695 BBC-3 Bail Rearing Conversion 4 Airtronics2595 BBC-4 Bail Bearing Conversion 1 -Airtronics695 BBC-5 Bail Bearing Only forJR etc 41995 BBC-6 Bail Bearing Only JR etr 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire-3cond 10-Put JR Colors800 #22 Battery Wiro -2 conductor 10600 EMS/SANYO Battery PacksGALL EMS Connectors ExtensionsGALL ADIO SOUTH INC PRO-DRIVER Contains 4 1300 mah battery cells senses plug fouled & boosts power LED bar garaph meter display plug condition Supports Futaba J chargers Sale Price $5300r7FThaF7 PRO-DRIVER MARK II7 auto shut down~So Pap Sale Price$5800 3702 N Pace Pensacola FL 32505 Toll Free Order Line Orders Only Please 800-962-7802 K Repair Information 0-434-0909 visit website http//mmm mtp net/DBEST/radiosoatb/RS1 html PRO-HINGES Easiest Hinge Install use cyanocrylate adhesives RC- $249/pkg 18 Scale $279/pkg 24 II not available local hobby shop order direct DEALER INQUIRIES INVITED 2 November1998 73 $300 Shipping Handling Per Order 04 Residents Add Sales las Oealer Inquiries Invited SANYO RC-2000 CELLS$550 Ea SANYO RC-2000 CELLS MATCHED$600 Ea SANYO RC-1700 CELLS new$400 Ea SANYO RC-1700 CELLS MATCHED$450 Ea SANYO KR1400 AE$350 Ea SANYO N1000 SCR CELLS$350 Ea SANYO N700AACELLS$150 Ea SANYO N500 AR CELLS$350 Ea SANYO KR600 AE CELLS$250 Ea SANYO N800 AR CELLS$350 Ea SANYO N350 AA CELLS$250 Ea SANYO 700 AA CELLS$150 Ea 4 CELL 270AA RECEIVER PACK$1000 Ea 5 CELL 1000 AE RECEIVER PACK$1800 Ea CONNECTORS 5. ftT~T$150 Pr AND BRAID ALSO AVAILABLE also make Ultra Thrust Mufflers Other Engines Call application Complete Engine Muffler Combos Available Call Prices Availability Send $300 1998 Cata og flea e rrqu es come PERFORMANCE SPECIALTIES P 0 Box 3146 nerville NV 89410 e 702-265-7523 702-265-7522 E mape fspec@aci net Z standards clean design meticulous manufacture reliable performance seemingly almost overnight developed glow plug versions revolutionized entire American model engine business spark ignition model engines never completely died out thing designed indefinite life still have first model engine Brown Jr obtained used 1937 still runs well ever modelers grown sentimentally attached old-time sparkers hung onto though employed glow engines flying Collectors sprang up acquire preserve antique engines around 1964 Society Antique Modelers arose resume flying usage great old spark-ignition engines SAM activities have become popular over last 30 years increasing demand suitable engines triggered modem production numerous sparkignition replicas Though out production again now numerous replica Browns Ohlsson Gold Seals Bunch Tigers superb quality made Herb Wahi decade ago Shilen Aerosports sells replica K&B Torpedo 24 29 32 sparkers plus SAM-approved 19 resembles prewar Atwood Hi-Speed Prices $225 Shilen Aerosports 205 Metro Park Blvd Ennis TX 75120 Tel [972] 875-1442 RJL Industries Box 5 Sierra Madre CA 91025 Tel [626] 359-0016 makes replica Forster 99s 29s Cunningham Blue Streak 65s Orwick derivative Remco 29s Prices range $100 Remco $175 Forster 29 sparker $289 big Forster $270 Cunningham Aside nostalgic value spark-ignition model engines have several practical advantages help Take look chart below An Ultra Thrust Muffler will add power hassle tuned pipes No Hangers No Couplers No Problems Dont limit performance fun. Fly Ultra Thrust Muffler 0532 FX 0S40 FX 0S46 FX 0S46 SF 0S61 FX 0561 SF-P ST GS 40 ST GS 45 ABC STG61 ABC iT Pro 46 TT Pro 61 Webra 40 GT Webra 50 GT Stock Muffler Ultra Thrust Muffler 15500 13700 14400 14000 11700 12400 13600 14600 11600 14000 11400 13800 14600 1t,uu 15000 15800 15700 13000 13gOo 15000 16300 12500 15100 12300 15200 15900 OS 32 Fx tested APO 9/6 Prop Au 40 through 50 engines tested APO 10/0 Prop 61 engines APC 11/7 prop 15% hitro Fuel results may vary locul cooditluos 74 Model Aviation 00L TOEC WINNER 37% 300L designed partner ship Osique Someazini 1991 l TO state art airframe ply composite technology Now can own exact duplicate airplane took Qoique Samenaini First Place the] 991 TOC Also Available 33A Laser 200120 Ultimate 40% G202120 Extra 300 25% Edge 5401/4 Scale Extra 36% Edge 540 300 Profile Hondbuitt Manokote scored Hand Painted ~arglass Ports S35t 120 Size tufts 300 120 Size titixate ero401 Loraclo st se U Aurora UI UU1 1 Ph 303-366-4205 303-306-1141 \lvorls t us on-lines wwwaero-SportsCOm/RCrOVJorkS WORI fl fi ASS AIRCRAFT e Fun compensate few drawbacks eg complexity added weight ignition components difficulty controlling engine speed flight Sparkers dont make much objectionable noise general run less 10000 rpm exhaust note softer less annoying glow engine Fuel inexpensive too old standard 31 gasoline-and-SAE-70-oil fuel mixture costs less $7 gallon s very long time indeed stored tightly capped Some spark fliers prefer alcohol-based fuel because runs cooler delivers little power thats no-nitro mix FAI-type glow fuel usual blend alcohol-fueled spark ignition model engines Modern technology has eliminated nearly former difficulties operating spark ignition power plants example Ni-Cd batteries have utterly conquered low-voltage troubles constantly suffered zinc-carbon pencells biggest troubleshooting breakthrough todays spark-ignition fliers Transistorized Ignition Modules Aero-Ply Research 2029 Crist Dr Los Altos CA 94024 Tel [415] 968-4246 makes matchbook-sized electronic unit TJM-4 essentially eliminates starting running problems caused oily misaligned contact points old standard spark-ignition circuit requires heavy current flow through contact pointsespecially during starting Yet points subject variety high resistance problems can too easily reduce strength spark plug less half what should Way less half too cases TIM-4 requires few milliamps current flow through points necessary current through engines spark coil approximately 12 amperes running using recommended three-cells-in-series Ni-Cd battery carried heavy duty switching transistor dont need condenser anymore TIM-4 providing ignition engines spark timing * Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch lD Price $495 FOURMOST PRODUCTS 503 357 2732 A I Y LU Plans Steven Stratt LI IwJ Ji1fli L scale ELEcTRICs. #1 ith easy gas option Miodiefi9Lircrafters Now have COMPLETE KITS 1/61/4 & 1/3 WITH. custom Aluminum cowl wired spoked wheels Machine Guns Ammo cockpit Interior Exact Scale Hardware Scale Documentation Laser cut Parts Top Quality Hand Picked wood Order NEW FULL COLOR CATALOG AIRDROME ALBUM History photos Send $700 VISA MC check/Mo specs plans Great 14795 N 78th way Unit 800 Scottsdale z Documentary ktr _____ VJ85260 Tel 602 348-3733$l4plus$3-lstCl Incredibly detailed WW plansFax 602 34377RIRDR0ME Order directly AIRDROME P0 Box 1425 FOR Station New York NY 10150 check MO 2 Inch Scale Plans $44 olled $4 Info Pack November1998 77 Auto Plug Way Valve

Author: J. Wagner


Edition: Model Aviation - 1998/11
Page Numbers: 67, 68, 73, 74, 77

U Joe Wagner TtZ7x Ltizr7ux L~p BECAUSE THIS COLUMN will coming out roughly same time AMAs Celebration Pioneers Im going devote model airplane engines got Gas Model flying started Old-Timer spark-ignition types still provide motive power models today such popular SAM Society Antique Modelers Free Flight events Primitive miniature gas engines have used flying model airplanes since before World War didnt become obtainable average model fliers until mid-1930s Brown Junior 60 manufactured Philadelphia Baby Cyclone 36 made Los Angeles first appeared Americas hobby shops darkest days Depression era working man felt lucky earn $25 week Brown Jrs $2150 price tag put beyond reach modelers Baby Cyclone sold little less Still two pioneer power plants hauled enough gas models aloft stir up deep desire engine power among Americas youth Model kit makers partly satisfied desire issuing rubber-powered kits Scientifics $195 Flea onethat designed look like gassies came turned hardwood parts constructing dummy engine included ratchet-like gizmo installed rear propeller simulate sound gas engine During next few years Americas economic climate gradually improved model engine prices dropped numbers grew slowly 1938 engines such Ten-Dollar Brown Dennymite 57 Trojan 19 Bullet 275 Ohlsson & Rice 23 introduced latter four engines priced about $17 complete fuel tank spark plug coil condenser little Ohlsson really made gas modeling popular America far best selling prewar model engines nearly million O&R 23s sold before end 1941 Spark-ignition model engines have never truly easy install operate mention just problem area necessary electrical wiring provided ample opportunity go astray cially teenagers made up majority model fliers Good Old Days prewar model engines approximately 50 readily available American makes models Ohlsson 23 proved friendliest least troublesomeby November1998 67 well-loved Ohlsson 23 Prewar model left postwar right Thousands 50-plus-years-old engines still use First front-rotary model engine 1936 Bill Atwood-designed Baby Cyclone 36 didnt have adjustable spark timing selection justly famous postwar sparkers Back row L-R Ohlsson 60 Super Cyclone 60 Front row OK Super 60 DeLong 30 Arden 099 far common practice Ohisson owners take engines apart put back together needed small screwdriver Crescent wrench True engine disassembly/reassembly done just heck Hardly anyone performed hopping up Ohisson 23s just wasnt much could engine cleverly designed parts failures seldom occurred Still needed spare parts easily inexpensively available some 3400 Official O&R Dealers US 1941 numbers course routinely replaced such items crankcase gaskets point springs insulating washers big advantage prewar model engine tinkerers gained fiddling much power plants educational learned hands-on experience engines worked function various parts causes failure plenty contend spark-ignition components provided trouble Pencell batteries available Good Old Days pitiful quality Most serious gas modelers bought boxes dozen hoping least few would good enough keep engines running flight condensers less reliable days too 68 Model Aviation Bantam Champ 19 well-designed Ben Shereshaw suffered somewhat performance because too-heavy piston Aero-Plys TIM-4 Transistorized Ignition Module plus three-cell Ni-Cd battery pack solve 99% spark-ignition engine running problems Continued page 73 Midwest Aero-Star Kit #159 Wingspan 62 Wing Area 675 sq Flying Weight 5 2 lbs Channels 4 Engine2-Stroke-32- 454-Stroke-40- 56 Engine Shop/Wagner Continued page 68 ignorant realize although battery supplied three volts ignition circuit inductive kick coils primary winding could reach 250 volts course enough zap through waxed-paper insulation model engine condensers short out gas modelers persisted replaced adjusted thatall accumulating valuable engineering experienceuntil achieved success learned solder leaky gasket oily points prevented engine functioning what effect spark timing needle setting performance startability Prewar model airplane engines came wide variety types sizes Between Atom 097 Forster 99 could find engines almost displacement generally popular top limit AMA Engine Classes Ohlsson Bantam 19s Class Forster 29s Class B Super Cyclone OK Ohlsson 60s Class C course thenas nowthe greatest percentage model flying noncompetitive modeler out 10 entered contests Still now competition rules strong effect model engine design became marked late 940s After V-J Day model engines reappeared almost incredible variety offbeat displacementssuch various Bunch 45 engines Mighty Midget Gwin Aero Tiger Aero enjoyed excellent prewar popularity West Coastfell rapidly favor plethora 60-size engines flooded market late 1940s Contestor Fox 59 Hornet Anderson Spitfire McCoy Orwick Atwood Champion New 29s abounded well Torpedo Forster Melcraft OK DeLong Cannon Phantom O&R big advance came Class engines Arden 09 19 set EMS SERVO REVERSER Works AM FM ano radios 4 5 cells Install line servo servo will move opposite W directionl 501750 25 weight 25 ouncel EMS SR-2 connector $1495 wired connectors tsr $1995 F SR 2Y wired iv leg Y harness $2250 ULTIMATE BAlTERY BACKER BEST way insure reliable power model Use two packo Works standard 4 cell 5 cell GEL-CELL packs Battery packs can different capacity like 1 200 600 15 o 1 5 o 75 weight 6 sance $4995 wired connectors $5995 GEARAND DOOR SEQUENCER oprocessor driver device mhich controls sequences landing gear mechanism landing 0 gear doors Works air and/or servo controlled systems Gear servo door servo travel time individeally adjustable trom tall speed 10 secunds Gear doors GLOW DRIVER may remain open ala P-47 close An opto-isolated glew d e ow h ha ensa en aga ns ado after lowering gear ala P-Si Gear noise ON point easily adjustable user enly doesnt move until doors travel fully completed unit small screwdriver Size 1 5 v 15 v 75 Less 1 ounce must ter retract system Size 1 5 v 1 5 v 75 Less Supplied glow-plug wire connector User supplies ewn 1 ounce lvclsdes servo connector receiver $4495 NICAD battery Includes servo connector receiver $4495 Additional EMS Jomar Products Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllamess GS-l Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Bight limer 2995 NEW Stop-Go-LightTM2495 Gear Door Cycler3495 Channel Failsafe3895 Opto -Isolated Electronic Switch3995 Dual E-Switch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Mode Electronic Mixer4495 Glitch Buster/6 Channel Dpto-lsolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor UltralightESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yarba Linda GA 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom NEW MiniMAX4O ESC w/BEC Broke$9995 MiniMAX Original ESC w/Brake7995 Sport MAX ESC8995 SM-4 ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 Ball Bearing Conversion Futaba695 BBC-3 Bail Rearing Conversion 4 Airtronics2595 BBC-4 Bail Bearing Conversion 1 -Airtronics695 BBC-5 Bail Bearing Only forJR etc 41995 BBC-6 Bail Bearing Only JR etr 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire-3cond 10-Put JR Colors800 #22 Battery Wiro -2 conductor 10600 EMS/SANYO Battery PacksGALL EMS Connectors ExtensionsGALL ADIO SOUTH INC PRO-DRIVER Contains 4 1300 mah battery cells senses plug fouled & boosts power LED bar garaph meter display plug condition Supports Futaba J chargers Sale Price $5300r7FThaF7 PRO-DRIVER MARK II7 auto shut down~So Pap Sale Price$5800 3702 N Pace Pensacola FL 32505 Toll Free Order Line Orders Only Please 800-962-7802 K Repair Information 0-434-0909 visit website http//mmm mtp net/DBEST/radiosoatb/RS1 html PRO-HINGES Easiest Hinge Install use cyanocrylate adhesives RC- $249/pkg 18 Scale $279/pkg 24 II not available local hobby shop order direct DEALER INQUIRIES INVITED 2 November1998 73 $300 Shipping Handling Per Order 04 Residents Add Sales las Oealer Inquiries Invited SANYO RC-2000 CELLS$550 Ea SANYO RC-2000 CELLS MATCHED$600 Ea SANYO RC-1700 CELLS new$400 Ea SANYO RC-1700 CELLS MATCHED$450 Ea SANYO KR1400 AE$350 Ea SANYO N1000 SCR CELLS$350 Ea SANYO N700AACELLS$150 Ea SANYO N500 AR CELLS$350 Ea SANYO KR600 AE CELLS$250 Ea SANYO N800 AR CELLS$350 Ea SANYO N350 AA CELLS$250 Ea SANYO 700 AA CELLS$150 Ea 4 CELL 270AA RECEIVER PACK$1000 Ea 5 CELL 1000 AE RECEIVER PACK$1800 Ea CONNECTORS 5. ftT~T$150 Pr AND BRAID ALSO AVAILABLE also make Ultra Thrust Mufflers Other Engines Call application Complete Engine Muffler Combos Available Call Prices Availability Send $300 1998 Cata og flea e rrqu es come PERFORMANCE SPECIALTIES P 0 Box 3146 nerville NV 89410 e 702-265-7523 702-265-7522 E mape fspec@aci net Z standards clean design meticulous manufacture reliable performance seemingly almost overnight developed glow plug versions revolutionized entire American model engine business spark ignition model engines never completely died out thing designed indefinite life still have first model engine Brown Jr obtained used 1937 still runs well ever modelers grown sentimentally attached old-time sparkers hung onto though employed glow engines flying Collectors sprang up acquire preserve antique engines around 1964 Society Antique Modelers arose resume flying usage great old spark-ignition engines SAM activities have become popular over last 30 years increasing demand suitable engines triggered modem production numerous sparkignition replicas Though out production again now numerous replica Browns Ohlsson Gold Seals Bunch Tigers superb quality made Herb Wahi decade ago Shilen Aerosports sells replica K&B Torpedo 24 29 32 sparkers plus SAM-approved 19 resembles prewar Atwood Hi-Speed Prices $225 Shilen Aerosports 205 Metro Park Blvd Ennis TX 75120 Tel [972] 875-1442 RJL Industries Box 5 Sierra Madre CA 91025 Tel [626] 359-0016 makes replica Forster 99s 29s Cunningham Blue Streak 65s Orwick derivative Remco 29s Prices range $100 Remco $175 Forster 29 sparker $289 big Forster $270 Cunningham Aside nostalgic value spark-ignition model engines have several practical advantages help Take look chart below An Ultra Thrust Muffler will add power hassle tuned pipes No Hangers No Couplers No Problems Dont limit performance fun. Fly Ultra Thrust Muffler 0532 FX 0S40 FX 0S46 FX 0S46 SF 0S61 FX 0561 SF-P ST GS 40 ST GS 45 ABC STG61 ABC iT Pro 46 TT Pro 61 Webra 40 GT Webra 50 GT Stock Muffler Ultra Thrust Muffler 15500 13700 14400 14000 11700 12400 13600 14600 11600 14000 11400 13800 14600 1t,uu 15000 15800 15700 13000 13gOo 15000 16300 12500 15100 12300 15200 15900 OS 32 Fx tested APO 9/6 Prop Au 40 through 50 engines tested APO 10/0 Prop 61 engines APC 11/7 prop 15% hitro Fuel results may vary locul cooditluos 74 Model Aviation 00L TOEC WINNER 37% 300L designed partner ship Osique Someazini 1991 l TO state art airframe ply composite technology Now can own exact duplicate airplane took Qoique Samenaini First Place the] 991 TOC Also Available 33A Laser 200120 Ultimate 40% G202120 Extra 300 25% Edge 5401/4 Scale Extra 36% Edge 540 300 Profile Hondbuitt Manokote scored Hand Painted ~arglass Ports S35t 120 Size tufts 300 120 Size titixate ero401 Loraclo st se U Aurora UI UU1 1 Ph 303-366-4205 303-306-1141 \lvorls t us on-lines wwwaero-SportsCOm/RCrOVJorkS WORI fl fi ASS AIRCRAFT e Fun compensate few drawbacks eg complexity added weight ignition components difficulty controlling engine speed flight Sparkers dont make much objectionable noise general run less 10000 rpm exhaust note softer less annoying glow engine Fuel inexpensive too old standard 31 gasoline-and-SAE-70-oil fuel mixture costs less $7 gallon s very long time indeed stored tightly capped Some spark fliers prefer alcohol-based fuel because runs cooler delivers little power thats no-nitro mix FAI-type glow fuel usual blend alcohol-fueled spark ignition model engines Modern technology has eliminated nearly former difficulties operating spark ignition power plants example Ni-Cd batteries have utterly conquered low-voltage troubles constantly suffered zinc-carbon pencells biggest troubleshooting breakthrough todays spark-ignition fliers Transistorized Ignition Modules Aero-Ply Research 2029 Crist Dr Los Altos CA 94024 Tel [415] 968-4246 makes matchbook-sized electronic unit TJM-4 essentially eliminates starting running problems caused oily misaligned contact points old standard spark-ignition circuit requires heavy current flow through contact pointsespecially during starting Yet points subject variety high resistance problems can too easily reduce strength spark plug less half what should Way less half too cases TIM-4 requires few milliamps current flow through points necessary current through engines spark coil approximately 12 amperes running using recommended three-cells-in-series Ni-Cd battery carried heavy duty switching transistor dont need condenser anymore TIM-4 providing ignition engines spark timing * Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch lD Price $495 FOURMOST PRODUCTS 503 357 2732 A I Y LU Plans Steven Stratt LI IwJ Ji1fli L scale ELEcTRICs. #1 ith easy gas option Miodiefi9Lircrafters Now have COMPLETE KITS 1/61/4 & 1/3 WITH. custom Aluminum cowl wired spoked wheels Machine Guns Ammo cockpit Interior Exact Scale Hardware Scale Documentation Laser cut Parts Top Quality Hand Picked wood Order NEW FULL COLOR CATALOG AIRDROME ALBUM History photos Send $700 VISA MC check/Mo specs plans Great 14795 N 78th way Unit 800 Scottsdale z Documentary ktr _____ VJ85260 Tel 602 348-3733$l4plus$3-lstCl Incredibly detailed WW plansFax 602 34377RIRDR0ME Order directly AIRDROME P0 Box 1425 FOR Station New York NY 10150 check MO 2 Inch Scale Plans $44 olled $4 Info Pack November1998 77 Auto Plug Way Valve

Author: J. Wagner


Edition: Model Aviation - 1998/11
Page Numbers: 67, 68, 73, 74, 77

U Joe Wagner TtZ7x Ltizr7ux L~p BECAUSE THIS COLUMN will coming out roughly same time AMAs Celebration Pioneers Im going devote model airplane engines got Gas Model flying started Old-Timer spark-ignition types still provide motive power models today such popular SAM Society Antique Modelers Free Flight events Primitive miniature gas engines have used flying model airplanes since before World War didnt become obtainable average model fliers until mid-1930s Brown Junior 60 manufactured Philadelphia Baby Cyclone 36 made Los Angeles first appeared Americas hobby shops darkest days Depression era working man felt lucky earn $25 week Brown Jrs $2150 price tag put beyond reach modelers Baby Cyclone sold little less Still two pioneer power plants hauled enough gas models aloft stir up deep desire engine power among Americas youth Model kit makers partly satisfied desire issuing rubber-powered kits Scientifics $195 Flea onethat designed look like gassies came turned hardwood parts constructing dummy engine included ratchet-like gizmo installed rear propeller simulate sound gas engine During next few years Americas economic climate gradually improved model engine prices dropped numbers grew slowly 1938 engines such Ten-Dollar Brown Dennymite 57 Trojan 19 Bullet 275 Ohlsson & Rice 23 introduced latter four engines priced about $17 complete fuel tank spark plug coil condenser little Ohlsson really made gas modeling popular America far best selling prewar model engines nearly million O&R 23s sold before end 1941 Spark-ignition model engines have never truly easy install operate mention just problem area necessary electrical wiring provided ample opportunity go astray cially teenagers made up majority model fliers Good Old Days prewar model engines approximately 50 readily available American makes models Ohlsson 23 proved friendliest least troublesomeby November1998 67 well-loved Ohlsson 23 Prewar model left postwar right Thousands 50-plus-years-old engines still use First front-rotary model engine 1936 Bill Atwood-designed Baby Cyclone 36 didnt have adjustable spark timing selection justly famous postwar sparkers Back row L-R Ohlsson 60 Super Cyclone 60 Front row OK Super 60 DeLong 30 Arden 099 far common practice Ohisson owners take engines apart put back together needed small screwdriver Crescent wrench True engine disassembly/reassembly done just heck Hardly anyone performed hopping up Ohisson 23s just wasnt much could engine cleverly designed parts failures seldom occurred Still needed spare parts easily inexpensively available some 3400 Official O&R Dealers US 1941 numbers course routinely replaced such items crankcase gaskets point springs insulating washers big advantage prewar model engine tinkerers gained fiddling much power plants educational learned hands-on experience engines worked function various parts causes failure plenty contend spark-ignition components provided trouble Pencell batteries available Good Old Days pitiful quality Most serious gas modelers bought boxes dozen hoping least few would good enough keep engines running flight condensers less reliable days too 68 Model Aviation Bantam Champ 19 well-designed Ben Shereshaw suffered somewhat performance because too-heavy piston Aero-Plys TIM-4 Transistorized Ignition Module plus three-cell Ni-Cd battery pack solve 99% spark-ignition engine running problems Continued page 73 Midwest Aero-Star Kit #159 Wingspan 62 Wing Area 675 sq Flying Weight 5 2 lbs Channels 4 Engine2-Stroke-32- 454-Stroke-40- 56 Engine Shop/Wagner Continued page 68 ignorant realize although battery supplied three volts ignition circuit inductive kick coils primary winding could reach 250 volts course enough zap through waxed-paper insulation model engine condensers short out gas modelers persisted replaced adjusted thatall accumulating valuable engineering experienceuntil achieved success learned solder leaky gasket oily points prevented engine functioning what effect spark timing needle setting performance startability Prewar model airplane engines came wide variety types sizes Between Atom 097 Forster 99 could find engines almost displacement generally popular top limit AMA Engine Classes Ohlsson Bantam 19s Class Forster 29s Class B Super Cyclone OK Ohlsson 60s Class C course thenas nowthe greatest percentage model flying noncompetitive modeler out 10 entered contests Still now competition rules strong effect model engine design became marked late 940s After V-J Day model engines reappeared almost incredible variety offbeat displacementssuch various Bunch 45 engines Mighty Midget Gwin Aero Tiger Aero enjoyed excellent prewar popularity West Coastfell rapidly favor plethora 60-size engines flooded market late 1940s Contestor Fox 59 Hornet Anderson Spitfire McCoy Orwick Atwood Champion New 29s abounded well Torpedo Forster Melcraft OK DeLong Cannon Phantom O&R big advance came Class engines Arden 09 19 set EMS SERVO REVERSER Works AM FM ano radios 4 5 cells Install line servo servo will move opposite W directionl 501750 25 weight 25 ouncel EMS SR-2 connector $1495 wired connectors tsr $1995 F SR 2Y wired iv leg Y harness $2250 ULTIMATE BAlTERY BACKER BEST way insure reliable power model Use two packo Works standard 4 cell 5 cell GEL-CELL packs Battery packs can different capacity like 1 200 600 15 o 1 5 o 75 weight 6 sance $4995 wired connectors $5995 GEARAND DOOR SEQUENCER oprocessor driver device mhich controls sequences landing gear mechanism landing 0 gear doors Works air and/or servo controlled systems Gear servo door servo travel time individeally adjustable trom tall speed 10 secunds Gear doors GLOW DRIVER may remain open ala P-47 close An opto-isolated glew d e ow h ha ensa en aga ns ado after lowering gear ala P-Si Gear noise ON point easily adjustable user enly doesnt move until doors travel fully completed unit small screwdriver Size 1 5 v 15 v 75 Less 1 ounce must ter retract system Size 1 5 v 1 5 v 75 Less Supplied glow-plug wire connector User supplies ewn 1 ounce lvclsdes servo connector receiver $4495 NICAD battery Includes servo connector receiver $4495 Additional EMS Jomar Products Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllamess GS-l Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Bight limer 2995 NEW Stop-Go-LightTM2495 Gear Door Cycler3495 Channel Failsafe3895 Opto -Isolated Electronic Switch3995 Dual E-Switch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Mode Electronic Mixer4495 Glitch Buster/6 Channel Dpto-lsolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor UltralightESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yarba Linda GA 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom NEW MiniMAX4O ESC w/BEC Broke$9995 MiniMAX Original ESC w/Brake7995 Sport MAX ESC8995 SM-4 ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 Ball Bearing Conversion Futaba695 BBC-3 Bail Rearing Conversion 4 Airtronics2595 BBC-4 Bail Bearing Conversion 1 -Airtronics695 BBC-5 Bail Bearing Only forJR etc 41995 BBC-6 Bail Bearing Only JR etr 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire-3cond 10-Put JR Colors800 #22 Battery Wiro -2 conductor 10600 EMS/SANYO Battery PacksGALL EMS Connectors ExtensionsGALL ADIO SOUTH INC PRO-DRIVER Contains 4 1300 mah battery cells senses plug fouled & boosts power LED bar garaph meter display plug condition Supports Futaba J chargers Sale Price $5300r7FThaF7 PRO-DRIVER MARK II7 auto shut down~So Pap Sale Price$5800 3702 N Pace Pensacola FL 32505 Toll Free Order Line Orders Only Please 800-962-7802 K Repair Information 0-434-0909 visit website http//mmm mtp net/DBEST/radiosoatb/RS1 html PRO-HINGES Easiest Hinge Install use cyanocrylate adhesives RC- $249/pkg 18 Scale $279/pkg 24 II not available local hobby shop order direct DEALER INQUIRIES INVITED 2 November1998 73 $300 Shipping Handling Per Order 04 Residents Add Sales las Oealer Inquiries Invited SANYO RC-2000 CELLS$550 Ea SANYO RC-2000 CELLS MATCHED$600 Ea SANYO RC-1700 CELLS new$400 Ea SANYO RC-1700 CELLS MATCHED$450 Ea SANYO KR1400 AE$350 Ea SANYO N1000 SCR CELLS$350 Ea SANYO N700AACELLS$150 Ea SANYO N500 AR CELLS$350 Ea SANYO KR600 AE CELLS$250 Ea SANYO N800 AR CELLS$350 Ea SANYO N350 AA CELLS$250 Ea SANYO 700 AA CELLS$150 Ea 4 CELL 270AA RECEIVER PACK$1000 Ea 5 CELL 1000 AE RECEIVER PACK$1800 Ea CONNECTORS 5. ftT~T$150 Pr AND BRAID ALSO AVAILABLE also make Ultra Thrust Mufflers Other Engines Call application Complete Engine Muffler Combos Available Call Prices Availability Send $300 1998 Cata og flea e rrqu es come PERFORMANCE SPECIALTIES P 0 Box 3146 nerville NV 89410 e 702-265-7523 702-265-7522 E mape fspec@aci net Z standards clean design meticulous manufacture reliable performance seemingly almost overnight developed glow plug versions revolutionized entire American model engine business spark ignition model engines never completely died out thing designed indefinite life still have first model engine Brown Jr obtained used 1937 still runs well ever modelers grown sentimentally attached old-time sparkers hung onto though employed glow engines flying Collectors sprang up acquire preserve antique engines around 1964 Society Antique Modelers arose resume flying usage great old spark-ignition engines SAM activities have become popular over last 30 years increasing demand suitable engines triggered modem production numerous sparkignition replicas Though out production again now numerous replica Browns Ohlsson Gold Seals Bunch Tigers superb quality made Herb Wahi decade ago Shilen Aerosports sells replica K&B Torpedo 24 29 32 sparkers plus SAM-approved 19 resembles prewar Atwood Hi-Speed Prices $225 Shilen Aerosports 205 Metro Park Blvd Ennis TX 75120 Tel [972] 875-1442 RJL Industries Box 5 Sierra Madre CA 91025 Tel [626] 359-0016 makes replica Forster 99s 29s Cunningham Blue Streak 65s Orwick derivative Remco 29s Prices range $100 Remco $175 Forster 29 sparker $289 big Forster $270 Cunningham Aside nostalgic value spark-ignition model engines have several practical advantages help Take look chart below An Ultra Thrust Muffler will add power hassle tuned pipes No Hangers No Couplers No Problems Dont limit performance fun. Fly Ultra Thrust Muffler 0532 FX 0S40 FX 0S46 FX 0S46 SF 0S61 FX 0561 SF-P ST GS 40 ST GS 45 ABC STG61 ABC iT Pro 46 TT Pro 61 Webra 40 GT Webra 50 GT Stock Muffler Ultra Thrust Muffler 15500 13700 14400 14000 11700 12400 13600 14600 11600 14000 11400 13800 14600 1t,uu 15000 15800 15700 13000 13gOo 15000 16300 12500 15100 12300 15200 15900 OS 32 Fx tested APO 9/6 Prop Au 40 through 50 engines tested APO 10/0 Prop 61 engines APC 11/7 prop 15% hitro Fuel results may vary locul cooditluos 74 Model Aviation 00L TOEC WINNER 37% 300L designed partner ship Osique Someazini 1991 l TO state art airframe ply composite technology Now can own exact duplicate airplane took Qoique Samenaini First Place the] 991 TOC Also Available 33A Laser 200120 Ultimate 40% G202120 Extra 300 25% Edge 5401/4 Scale Extra 36% Edge 540 300 Profile Hondbuitt Manokote scored Hand Painted ~arglass Ports S35t 120 Size tufts 300 120 Size titixate ero401 Loraclo st se U Aurora UI UU1 1 Ph 303-366-4205 303-306-1141 \lvorls t us on-lines wwwaero-SportsCOm/RCrOVJorkS WORI fl fi ASS AIRCRAFT e Fun compensate few drawbacks eg complexity added weight ignition components difficulty controlling engine speed flight Sparkers dont make much objectionable noise general run less 10000 rpm exhaust note softer less annoying glow engine Fuel inexpensive too old standard 31 gasoline-and-SAE-70-oil fuel mixture costs less $7 gallon s very long time indeed stored tightly capped Some spark fliers prefer alcohol-based fuel because runs cooler delivers little power thats no-nitro mix FAI-type glow fuel usual blend alcohol-fueled spark ignition model engines Modern technology has eliminated nearly former difficulties operating spark ignition power plants example Ni-Cd batteries have utterly conquered low-voltage troubles constantly suffered zinc-carbon pencells biggest troubleshooting breakthrough todays spark-ignition fliers Transistorized Ignition Modules Aero-Ply Research 2029 Crist Dr Los Altos CA 94024 Tel [415] 968-4246 makes matchbook-sized electronic unit TJM-4 essentially eliminates starting running problems caused oily misaligned contact points old standard spark-ignition circuit requires heavy current flow through contact pointsespecially during starting Yet points subject variety high resistance problems can too easily reduce strength spark plug less half what should Way less half too cases TIM-4 requires few milliamps current flow through points necessary current through engines spark coil approximately 12 amperes running using recommended three-cells-in-series Ni-Cd battery carried heavy duty switching transistor dont need condenser anymore TIM-4 providing ignition engines spark timing * Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch lD Price $495 FOURMOST PRODUCTS 503 357 2732 A I Y LU Plans Steven Stratt LI IwJ Ji1fli L scale ELEcTRICs. #1 ith easy gas option Miodiefi9Lircrafters Now have COMPLETE KITS 1/61/4 & 1/3 WITH. custom Aluminum cowl wired spoked wheels Machine Guns Ammo cockpit Interior Exact Scale Hardware Scale Documentation Laser cut Parts Top Quality Hand Picked wood Order NEW FULL COLOR CATALOG AIRDROME ALBUM History photos Send $700 VISA MC check/Mo specs plans Great 14795 N 78th way Unit 800 Scottsdale z Documentary ktr _____ VJ85260 Tel 602 348-3733$l4plus$3-lstCl Incredibly detailed WW plansFax 602 34377RIRDR0ME Order directly AIRDROME P0 Box 1425 FOR Station New York NY 10150 check MO 2 Inch Scale Plans $44 olled $4 Info Pack November1998 77 Auto Plug Way Valve

Author: J. Wagner


Edition: Model Aviation - 1998/11
Page Numbers: 67, 68, 73, 74, 77

U Joe Wagner TtZ7x Ltizr7ux L~p BECAUSE THIS COLUMN will coming out roughly same time AMAs Celebration Pioneers Im going devote model airplane engines got Gas Model flying started Old-Timer spark-ignition types still provide motive power models today such popular SAM Society Antique Modelers Free Flight events Primitive miniature gas engines have used flying model airplanes since before World War didnt become obtainable average model fliers until mid-1930s Brown Junior 60 manufactured Philadelphia Baby Cyclone 36 made Los Angeles first appeared Americas hobby shops darkest days Depression era working man felt lucky earn $25 week Brown Jrs $2150 price tag put beyond reach modelers Baby Cyclone sold little less Still two pioneer power plants hauled enough gas models aloft stir up deep desire engine power among Americas youth Model kit makers partly satisfied desire issuing rubber-powered kits Scientifics $195 Flea onethat designed look like gassies came turned hardwood parts constructing dummy engine included ratchet-like gizmo installed rear propeller simulate sound gas engine During next few years Americas economic climate gradually improved model engine prices dropped numbers grew slowly 1938 engines such Ten-Dollar Brown Dennymite 57 Trojan 19 Bullet 275 Ohlsson & Rice 23 introduced latter four engines priced about $17 complete fuel tank spark plug coil condenser little Ohlsson really made gas modeling popular America far best selling prewar model engines nearly million O&R 23s sold before end 1941 Spark-ignition model engines have never truly easy install operate mention just problem area necessary electrical wiring provided ample opportunity go astray cially teenagers made up majority model fliers Good Old Days prewar model engines approximately 50 readily available American makes models Ohlsson 23 proved friendliest least troublesomeby November1998 67 well-loved Ohlsson 23 Prewar model left postwar right Thousands 50-plus-years-old engines still use First front-rotary model engine 1936 Bill Atwood-designed Baby Cyclone 36 didnt have adjustable spark timing selection justly famous postwar sparkers Back row L-R Ohlsson 60 Super Cyclone 60 Front row OK Super 60 DeLong 30 Arden 099 far common practice Ohisson owners take engines apart put back together needed small screwdriver Crescent wrench True engine disassembly/reassembly done just heck Hardly anyone performed hopping up Ohisson 23s just wasnt much could engine cleverly designed parts failures seldom occurred Still needed spare parts easily inexpensively available some 3400 Official O&R Dealers US 1941 numbers course routinely replaced such items crankcase gaskets point springs insulating washers big advantage prewar model engine tinkerers gained fiddling much power plants educational learned hands-on experience engines worked function various parts causes failure plenty contend spark-ignition components provided trouble Pencell batteries available Good Old Days pitiful quality Most serious gas modelers bought boxes dozen hoping least few would good enough keep engines running flight condensers less reliable days too 68 Model Aviation Bantam Champ 19 well-designed Ben Shereshaw suffered somewhat performance because too-heavy piston Aero-Plys TIM-4 Transistorized Ignition Module plus three-cell Ni-Cd battery pack solve 99% spark-ignition engine running problems Continued page 73 Midwest Aero-Star Kit #159 Wingspan 62 Wing Area 675 sq Flying Weight 5 2 lbs Channels 4 Engine2-Stroke-32- 454-Stroke-40- 56 Engine Shop/Wagner Continued page 68 ignorant realize although battery supplied three volts ignition circuit inductive kick coils primary winding could reach 250 volts course enough zap through waxed-paper insulation model engine condensers short out gas modelers persisted replaced adjusted thatall accumulating valuable engineering experienceuntil achieved success learned solder leaky gasket oily points prevented engine functioning what effect spark timing needle setting performance startability Prewar model airplane engines came wide variety types sizes Between Atom 097 Forster 99 could find engines almost displacement generally popular top limit AMA Engine Classes Ohlsson Bantam 19s Class Forster 29s Class B Super Cyclone OK Ohlsson 60s Class C course thenas nowthe greatest percentage model flying noncompetitive modeler out 10 entered contests Still now competition rules strong effect model engine design became marked late 940s After V-J Day model engines reappeared almost incredible variety offbeat displacementssuch various Bunch 45 engines Mighty Midget Gwin Aero Tiger Aero enjoyed excellent prewar popularity West Coastfell rapidly favor plethora 60-size engines flooded market late 1940s Contestor Fox 59 Hornet Anderson Spitfire McCoy Orwick Atwood Champion New 29s abounded well Torpedo Forster Melcraft OK DeLong Cannon Phantom O&R big advance came Class engines Arden 09 19 set EMS SERVO REVERSER Works AM FM ano radios 4 5 cells Install line servo servo will move opposite W directionl 501750 25 weight 25 ouncel EMS SR-2 connector $1495 wired connectors tsr $1995 F SR 2Y wired iv leg Y harness $2250 ULTIMATE BAlTERY BACKER BEST way insure reliable power model Use two packo Works standard 4 cell 5 cell GEL-CELL packs Battery packs can different capacity like 1 200 600 15 o 1 5 o 75 weight 6 sance $4995 wired connectors $5995 GEARAND DOOR SEQUENCER oprocessor driver device mhich controls sequences landing gear mechanism landing 0 gear doors Works air and/or servo controlled systems Gear servo door servo travel time individeally adjustable trom tall speed 10 secunds Gear doors GLOW DRIVER may remain open ala P-47 close An opto-isolated glew d e ow h ha ensa en aga ns ado after lowering gear ala P-Si Gear noise ON point easily adjustable user enly doesnt move until doors travel fully completed unit small screwdriver Size 1 5 v 15 v 75 Less 1 ounce must ter retract system Size 1 5 v 1 5 v 75 Less Supplied glow-plug wire connector User supplies ewn 1 ounce lvclsdes servo connector receiver $4495 NICAD battery Includes servo connector receiver $4495 Additional EMS Jomar Products Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllamess GS-l Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Bight limer 2995 NEW Stop-Go-LightTM2495 Gear Door Cycler3495 Channel Failsafe3895 Opto -Isolated Electronic Switch3995 Dual E-Switch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Mode Electronic Mixer4495 Glitch Buster/6 Channel Dpto-lsolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor UltralightESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yarba Linda GA 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom NEW MiniMAX4O ESC w/BEC Broke$9995 MiniMAX Original ESC w/Brake7995 Sport MAX ESC8995 SM-4 ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 Ball Bearing Conversion Futaba695 BBC-3 Bail Rearing Conversion 4 Airtronics2595 BBC-4 Bail Bearing Conversion 1 -Airtronics695 BBC-5 Bail Bearing Only forJR etc 41995 BBC-6 Bail Bearing Only JR etr 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire-3cond 10-Put JR Colors800 #22 Battery Wiro -2 conductor 10600 EMS/SANYO Battery PacksGALL EMS Connectors ExtensionsGALL ADIO SOUTH INC PRO-DRIVER Contains 4 1300 mah battery cells senses plug fouled & boosts power LED bar garaph meter display plug condition Supports Futaba J chargers Sale Price $5300r7FThaF7 PRO-DRIVER MARK II7 auto shut down~So Pap Sale Price$5800 3702 N Pace Pensacola FL 32505 Toll Free Order Line Orders Only Please 800-962-7802 K Repair Information 0-434-0909 visit website http//mmm mtp net/DBEST/radiosoatb/RS1 html PRO-HINGES Easiest Hinge Install use cyanocrylate adhesives RC- $249/pkg 18 Scale $279/pkg 24 II not available local hobby shop order direct DEALER INQUIRIES INVITED 2 November1998 73 $300 Shipping Handling Per Order 04 Residents Add Sales las Oealer Inquiries Invited SANYO RC-2000 CELLS$550 Ea SANYO RC-2000 CELLS MATCHED$600 Ea SANYO RC-1700 CELLS new$400 Ea SANYO RC-1700 CELLS MATCHED$450 Ea SANYO KR1400 AE$350 Ea SANYO N1000 SCR CELLS$350 Ea SANYO N700AACELLS$150 Ea SANYO N500 AR CELLS$350 Ea SANYO KR600 AE CELLS$250 Ea SANYO N800 AR CELLS$350 Ea SANYO N350 AA CELLS$250 Ea SANYO 700 AA CELLS$150 Ea 4 CELL 270AA RECEIVER PACK$1000 Ea 5 CELL 1000 AE RECEIVER PACK$1800 Ea CONNECTORS 5. ftT~T$150 Pr AND BRAID ALSO AVAILABLE also make Ultra Thrust Mufflers Other Engines Call application Complete Engine Muffler Combos Available Call Prices Availability Send $300 1998 Cata og flea e rrqu es come PERFORMANCE SPECIALTIES P 0 Box 3146 nerville NV 89410 e 702-265-7523 702-265-7522 E mape fspec@aci net Z standards clean design meticulous manufacture reliable performance seemingly almost overnight developed glow plug versions revolutionized entire American model engine business spark ignition model engines never completely died out thing designed indefinite life still have first model engine Brown Jr obtained used 1937 still runs well ever modelers grown sentimentally attached old-time sparkers hung onto though employed glow engines flying Collectors sprang up acquire preserve antique engines around 1964 Society Antique Modelers arose resume flying usage great old spark-ignition engines SAM activities have become popular over last 30 years increasing demand suitable engines triggered modem production numerous sparkignition replicas Though out production again now numerous replica Browns Ohlsson Gold Seals Bunch Tigers superb quality made Herb Wahi decade ago Shilen Aerosports sells replica K&B Torpedo 24 29 32 sparkers plus SAM-approved 19 resembles prewar Atwood Hi-Speed Prices $225 Shilen Aerosports 205 Metro Park Blvd Ennis TX 75120 Tel [972] 875-1442 RJL Industries Box 5 Sierra Madre CA 91025 Tel [626] 359-0016 makes replica Forster 99s 29s Cunningham Blue Streak 65s Orwick derivative Remco 29s Prices range $100 Remco $175 Forster 29 sparker $289 big Forster $270 Cunningham Aside nostalgic value spark-ignition model engines have several practical advantages help Take look chart below An Ultra Thrust Muffler will add power hassle tuned pipes No Hangers No Couplers No Problems Dont limit performance fun. Fly Ultra Thrust Muffler 0532 FX 0S40 FX 0S46 FX 0S46 SF 0S61 FX 0561 SF-P ST GS 40 ST GS 45 ABC STG61 ABC iT Pro 46 TT Pro 61 Webra 40 GT Webra 50 GT Stock Muffler Ultra Thrust Muffler 15500 13700 14400 14000 11700 12400 13600 14600 11600 14000 11400 13800 14600 1t,uu 15000 15800 15700 13000 13gOo 15000 16300 12500 15100 12300 15200 15900 OS 32 Fx tested APO 9/6 Prop Au 40 through 50 engines tested APO 10/0 Prop 61 engines APC 11/7 prop 15% hitro Fuel results may vary locul cooditluos 74 Model Aviation 00L TOEC WINNER 37% 300L designed partner ship Osique Someazini 1991 l TO state art airframe ply composite technology Now can own exact duplicate airplane took Qoique Samenaini First Place the] 991 TOC Also Available 33A Laser 200120 Ultimate 40% G202120 Extra 300 25% Edge 5401/4 Scale Extra 36% Edge 540 300 Profile Hondbuitt Manokote scored Hand Painted ~arglass Ports S35t 120 Size tufts 300 120 Size titixate ero401 Loraclo st se U Aurora UI UU1 1 Ph 303-366-4205 303-306-1141 \lvorls t us on-lines wwwaero-SportsCOm/RCrOVJorkS WORI fl fi ASS AIRCRAFT e Fun compensate few drawbacks eg complexity added weight ignition components difficulty controlling engine speed flight Sparkers dont make much objectionable noise general run less 10000 rpm exhaust note softer less annoying glow engine Fuel inexpensive too old standard 31 gasoline-and-SAE-70-oil fuel mixture costs less $7 gallon s very long time indeed stored tightly capped Some spark fliers prefer alcohol-based fuel because runs cooler delivers little power thats no-nitro mix FAI-type glow fuel usual blend alcohol-fueled spark ignition model engines Modern technology has eliminated nearly former difficulties operating spark ignition power plants example Ni-Cd batteries have utterly conquered low-voltage troubles constantly suffered zinc-carbon pencells biggest troubleshooting breakthrough todays spark-ignition fliers Transistorized Ignition Modules Aero-Ply Research 2029 Crist Dr Los Altos CA 94024 Tel [415] 968-4246 makes matchbook-sized electronic unit TJM-4 essentially eliminates starting running problems caused oily misaligned contact points old standard spark-ignition circuit requires heavy current flow through contact pointsespecially during starting Yet points subject variety high resistance problems can too easily reduce strength spark plug less half what should Way less half too cases TIM-4 requires few milliamps current flow through points necessary current through engines spark coil approximately 12 amperes running using recommended three-cells-in-series Ni-Cd battery carried heavy duty switching transistor dont need condenser anymore TIM-4 providing ignition engines spark timing * Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch lD Price $495 FOURMOST PRODUCTS 503 357 2732 A I Y LU Plans Steven Stratt LI IwJ Ji1fli L scale ELEcTRICs. #1 ith easy gas option Miodiefi9Lircrafters Now have COMPLETE KITS 1/61/4 & 1/3 WITH. custom Aluminum cowl wired spoked wheels Machine Guns Ammo cockpit Interior Exact Scale Hardware Scale Documentation Laser cut Parts Top Quality Hand Picked wood Order NEW FULL COLOR CATALOG AIRDROME ALBUM History photos Send $700 VISA MC check/Mo specs plans Great 14795 N 78th way Unit 800 Scottsdale z Documentary ktr _____ VJ85260 Tel 602 348-3733$l4plus$3-lstCl Incredibly detailed WW plansFax 602 34377RIRDR0ME Order directly AIRDROME P0 Box 1425 FOR Station New York NY 10150 check MO 2 Inch Scale Plans $44 olled $4 Info Pack November1998 77 Auto Plug Way Valve

Author: J. Wagner


Edition: Model Aviation - 1998/11
Page Numbers: 67, 68, 73, 74, 77

U Joe Wagner TtZ7x Ltizr7ux L~p BECAUSE THIS COLUMN will coming out roughly same time AMAs Celebration Pioneers Im going devote model airplane engines got Gas Model flying started Old-Timer spark-ignition types still provide motive power models today such popular SAM Society Antique Modelers Free Flight events Primitive miniature gas engines have used flying model airplanes since before World War didnt become obtainable average model fliers until mid-1930s Brown Junior 60 manufactured Philadelphia Baby Cyclone 36 made Los Angeles first appeared Americas hobby shops darkest days Depression era working man felt lucky earn $25 week Brown Jrs $2150 price tag put beyond reach modelers Baby Cyclone sold little less Still two pioneer power plants hauled enough gas models aloft stir up deep desire engine power among Americas youth Model kit makers partly satisfied desire issuing rubber-powered kits Scientifics $195 Flea onethat designed look like gassies came turned hardwood parts constructing dummy engine included ratchet-like gizmo installed rear propeller simulate sound gas engine During next few years Americas economic climate gradually improved model engine prices dropped numbers grew slowly 1938 engines such Ten-Dollar Brown Dennymite 57 Trojan 19 Bullet 275 Ohlsson & Rice 23 introduced latter four engines priced about $17 complete fuel tank spark plug coil condenser little Ohlsson really made gas modeling popular America far best selling prewar model engines nearly million O&R 23s sold before end 1941 Spark-ignition model engines have never truly easy install operate mention just problem area necessary electrical wiring provided ample opportunity go astray cially teenagers made up majority model fliers Good Old Days prewar model engines approximately 50 readily available American makes models Ohlsson 23 proved friendliest least troublesomeby November1998 67 well-loved Ohlsson 23 Prewar model left postwar right Thousands 50-plus-years-old engines still use First front-rotary model engine 1936 Bill Atwood-designed Baby Cyclone 36 didnt have adjustable spark timing selection justly famous postwar sparkers Back row L-R Ohlsson 60 Super Cyclone 60 Front row OK Super 60 DeLong 30 Arden 099 far common practice Ohisson owners take engines apart put back together needed small screwdriver Crescent wrench True engine disassembly/reassembly done just heck Hardly anyone performed hopping up Ohisson 23s just wasnt much could engine cleverly designed parts failures seldom occurred Still needed spare parts easily inexpensively available some 3400 Official O&R Dealers US 1941 numbers course routinely replaced such items crankcase gaskets point springs insulating washers big advantage prewar model engine tinkerers gained fiddling much power plants educational learned hands-on experience engines worked function various parts causes failure plenty contend spark-ignition components provided trouble Pencell batteries available Good Old Days pitiful quality Most serious gas modelers bought boxes dozen hoping least few would good enough keep engines running flight condensers less reliable days too 68 Model Aviation Bantam Champ 19 well-designed Ben Shereshaw suffered somewhat performance because too-heavy piston Aero-Plys TIM-4 Transistorized Ignition Module plus three-cell Ni-Cd battery pack solve 99% spark-ignition engine running problems Continued page 73 Midwest Aero-Star Kit #159 Wingspan 62 Wing Area 675 sq Flying Weight 5 2 lbs Channels 4 Engine2-Stroke-32- 454-Stroke-40- 56 Engine Shop/Wagner Continued page 68 ignorant realize although battery supplied three volts ignition circuit inductive kick coils primary winding could reach 250 volts course enough zap through waxed-paper insulation model engine condensers short out gas modelers persisted replaced adjusted thatall accumulating valuable engineering experienceuntil achieved success learned solder leaky gasket oily points prevented engine functioning what effect spark timing needle setting performance startability Prewar model airplane engines came wide variety types sizes Between Atom 097 Forster 99 could find engines almost displacement generally popular top limit AMA Engine Classes Ohlsson Bantam 19s Class Forster 29s Class B Super Cyclone OK Ohlsson 60s Class C course thenas nowthe greatest percentage model flying noncompetitive modeler out 10 entered contests Still now competition rules strong effect model engine design became marked late 940s After V-J Day model engines reappeared almost incredible variety offbeat displacementssuch various Bunch 45 engines Mighty Midget Gwin Aero Tiger Aero enjoyed excellent prewar popularity West Coastfell rapidly favor plethora 60-size engines flooded market late 1940s Contestor Fox 59 Hornet Anderson Spitfire McCoy Orwick Atwood Champion New 29s abounded well Torpedo Forster Melcraft OK DeLong Cannon Phantom O&R big advance came Class engines Arden 09 19 set EMS SERVO REVERSER Works AM FM ano radios 4 5 cells Install line servo servo will move opposite W directionl 501750 25 weight 25 ouncel EMS SR-2 connector $1495 wired connectors tsr $1995 F SR 2Y wired iv leg Y harness $2250 ULTIMATE BAlTERY BACKER BEST way insure reliable power model Use two packo Works standard 4 cell 5 cell GEL-CELL packs Battery packs can different capacity like 1 200 600 15 o 1 5 o 75 weight 6 sance $4995 wired connectors $5995 GEARAND DOOR SEQUENCER oprocessor driver device mhich controls sequences landing gear mechanism landing 0 gear doors Works air and/or servo controlled systems Gear servo door servo travel time individeally adjustable trom tall speed 10 secunds Gear doors GLOW DRIVER may remain open ala P-47 close An opto-isolated glew d e ow h ha ensa en aga ns ado after lowering gear ala P-Si Gear noise ON point easily adjustable user enly doesnt move until doors travel fully completed unit small screwdriver Size 1 5 v 15 v 75 Less 1 ounce must ter retract system Size 1 5 v 1 5 v 75 Less Supplied glow-plug wire connector User supplies ewn 1 ounce lvclsdes servo connector receiver $4495 NICAD battery Includes servo connector receiver $4495 Additional EMS Jomar Products Glitch Stop/Noise Trap GS-l$1250 Glitch Stop/Noise Trap Yllamess GS-l Y1500 NEW SRE-2000 Micro-Processor Reverser2495 NEW Beepo Bight limer 2995 NEW Stop-Go-LightTM2495 Gear Door Cycler3495 Channel Failsafe3895 Opto -Isolated Electronic Switch3995 Dual E-Switch3995 Snitch3995 Autoretract U/C3995 NEW Multi-Mode Electronic Mixer4495 Glitch Buster/6 Channel Dpto-lsolator7995 Twin Engine Sync System8995 NEW NanoMAX Indoor UltralightESC4495 NEW MicroMAX Speed 400 ESC wIBEC5995 Electronic Model Systems 22605 E La Palma Ave Suite 516 Yarba Linda GA 92887 Info Only 714-692-1393 Orders Only 800-845-8978 wwwemsjomarcom @emsjomarcom NEW MiniMAX4O ESC w/BEC Broke$9995 MiniMAX Original ESC w/Brake7995 Sport MAX ESC8995 SM-4 ESC9995 Heavy Duty Reversible Nautical Throttle8995 BBC-1 Ball Bearing Conversion 4 Futaba2595 BBC-2 Ball Bearing Conversion Futaba695 BBC-3 Bail Rearing Conversion 4 Airtronics2595 BBC-4 Bail Bearing Conversion 1 -Airtronics695 BBC-5 Bail Bearing Only forJR etc 41995 BBC-6 Bail Bearing Only JR etr 1500 Aramid Kevlar 29 Rigging Cable -201000 #22 Servo Wire-3cond 10-Put JR Colors800 #22 Battery Wiro -2 conductor 10600 EMS/SANYO Battery PacksGALL EMS Connectors ExtensionsGALL ADIO SOUTH INC PRO-DRIVER Contains 4 1300 mah battery cells senses plug fouled & boosts power LED bar garaph meter display plug condition Supports Futaba J chargers Sale Price $5300r7FThaF7 PRO-DRIVER MARK II7 auto shut down~So Pap Sale Price$5800 3702 N Pace Pensacola FL 32505 Toll Free Order Line Orders Only Please 800-962-7802 K Repair Information 0-434-0909 visit website http//mmm mtp net/DBEST/radiosoatb/RS1 html PRO-HINGES Easiest Hinge Install use cyanocrylate adhesives RC- $249/pkg 18 Scale $279/pkg 24 II not available local hobby shop order direct DEALER INQUIRIES INVITED 2 November1998 73 $300 Shipping Handling Per Order 04 Residents Add Sales las Oealer Inquiries Invited SANYO RC-2000 CELLS$550 Ea SANYO RC-2000 CELLS MATCHED$600 Ea SANYO RC-1700 CELLS new$400 Ea SANYO RC-1700 CELLS MATCHED$450 Ea SANYO KR1400 AE$350 Ea SANYO N1000 SCR CELLS$350 Ea SANYO N700AACELLS$150 Ea SANYO N500 AR CELLS$350 Ea SANYO KR600 AE CELLS$250 Ea SANYO N800 AR CELLS$350 Ea SANYO N350 AA CELLS$250 Ea SANYO 700 AA CELLS$150 Ea 4 CELL 270AA RECEIVER PACK$1000 Ea 5 CELL 1000 AE RECEIVER PACK$1800 Ea CONNECTORS 5. ftT~T$150 Pr AND BRAID ALSO AVAILABLE also make Ultra Thrust Mufflers Other Engines Call application Complete Engine Muffler Combos Available Call Prices Availability Send $300 1998 Cata og flea e rrqu es come PERFORMANCE SPECIALTIES P 0 Box 3146 nerville NV 89410 e 702-265-7523 702-265-7522 E mape fspec@aci net Z standards clean design meticulous manufacture reliable performance seemingly almost overnight developed glow plug versions revolutionized entire American model engine business spark ignition model engines never completely died out thing designed indefinite life still have first model engine Brown Jr obtained used 1937 still runs well ever modelers grown sentimentally attached old-time sparkers hung onto though employed glow engines flying Collectors sprang up acquire preserve antique engines around 1964 Society Antique Modelers arose resume flying usage great old spark-ignition engines SAM activities have become popular over last 30 years increasing demand suitable engines triggered modem production numerous sparkignition replicas Though out production again now numerous replica Browns Ohlsson Gold Seals Bunch Tigers superb quality made Herb Wahi decade ago Shilen Aerosports sells replica K&B Torpedo 24 29 32 sparkers plus SAM-approved 19 resembles prewar Atwood Hi-Speed Prices $225 Shilen Aerosports 205 Metro Park Blvd Ennis TX 75120 Tel [972] 875-1442 RJL Industries Box 5 Sierra Madre CA 91025 Tel [626] 359-0016 makes replica Forster 99s 29s Cunningham Blue Streak 65s Orwick derivative Remco 29s Prices range $100 Remco $175 Forster 29 sparker $289 big Forster $270 Cunningham Aside nostalgic value spark-ignition model engines have several practical advantages help Take look chart below An Ultra Thrust Muffler will add power hassle tuned pipes No Hangers No Couplers No Problems Dont limit performance fun. Fly Ultra Thrust Muffler 0532 FX 0S40 FX 0S46 FX 0S46 SF 0S61 FX 0561 SF-P ST GS 40 ST GS 45 ABC STG61 ABC iT Pro 46 TT Pro 61 Webra 40 GT Webra 50 GT Stock Muffler Ultra Thrust Muffler 15500 13700 14400 14000 11700 12400 13600 14600 11600 14000 11400 13800 14600 1t,uu 15000 15800 15700 13000 13gOo 15000 16300 12500 15100 12300 15200 15900 OS 32 Fx tested APO 9/6 Prop Au 40 through 50 engines tested APO 10/0 Prop 61 engines APC 11/7 prop 15% hitro Fuel results may vary locul cooditluos 74 Model Aviation 00L TOEC WINNER 37% 300L designed partner ship Osique Someazini 1991 l TO state art airframe ply composite technology Now can own exact duplicate airplane took Qoique Samenaini First Place the] 991 TOC Also Available 33A Laser 200120 Ultimate 40% G202120 Extra 300 25% Edge 5401/4 Scale Extra 36% Edge 540 300 Profile Hondbuitt Manokote scored Hand Painted ~arglass Ports S35t 120 Size tufts 300 120 Size titixate ero401 Loraclo st se U Aurora UI UU1 1 Ph 303-366-4205 303-306-1141 \lvorls t us on-lines wwwaero-SportsCOm/RCrOVJorkS WORI fl fi ASS AIRCRAFT e Fun compensate few drawbacks eg complexity added weight ignition components difficulty controlling engine speed flight Sparkers dont make much objectionable noise general run less 10000 rpm exhaust note softer less annoying glow engine Fuel inexpensive too old standard 31 gasoline-and-SAE-70-oil fuel mixture costs less $7 gallon s very long time indeed stored tightly capped Some spark fliers prefer alcohol-based fuel because runs cooler delivers little power thats no-nitro mix FAI-type glow fuel usual blend alcohol-fueled spark ignition model engines Modern technology has eliminated nearly former difficulties operating spark ignition power plants example Ni-Cd batteries have utterly conquered low-voltage troubles constantly suffered zinc-carbon pencells biggest troubleshooting breakthrough todays spark-ignition fliers Transistorized Ignition Modules Aero-Ply Research 2029 Crist Dr Los Altos CA 94024 Tel [415] 968-4246 makes matchbook-sized electronic unit TJM-4 essentially eliminates starting running problems caused oily misaligned contact points old standard spark-ignition circuit requires heavy current flow through contact pointsespecially during starting Yet points subject variety high resistance problems can too easily reduce strength spark plug less half what should Way less half too cases TIM-4 requires few milliamps current flow through points necessary current through engines spark coil approximately 12 amperes running using recommended three-cells-in-series Ni-Cd battery carried heavy duty switching transistor dont need condenser anymore TIM-4 providing ignition engines spark timing * Flow Direction Only Fourmost Auto Plug / Way Valve can used variety circumstances require maintenance air fuel pressure Auto Plug can used place plug fuel systems utilize muffler pressure Auto Plug Valve may also used conjunction bladders eliminate continual pinching line during fueling process Plug Valve also ideal pressure line between muffler fuel tank prevent pressure fuel escaping back muffler product may used glow fuel Auto Plug Product No 138 Size 1/16 inch lD Price $495 FOURMOST PRODUCTS 503 357 2732 A I Y LU Plans Steven Stratt LI IwJ Ji1fli L scale ELEcTRICs. #1 ith easy gas option Miodiefi9Lircrafters Now have COMPLETE KITS 1/61/4 & 1/3 WITH. custom Aluminum cowl wired spoked wheels Machine Guns Ammo cockpit Interior Exact Scale Hardware Scale Documentation Laser cut Parts Top Quality Hand Picked wood Order NEW FULL COLOR CATALOG AIRDROME ALBUM History photos Send $700 VISA MC check/Mo specs plans Great 14795 N 78th way Unit 800 Scottsdale z Documentary ktr _____ VJ85260 Tel 602 348-3733$l4plus$3-lstCl Incredibly detailed WW plansFax 602 34377RIRDR0ME Order directly AIRDROME P0 Box 1425 FOR Station New York NY 10150 check MO 2 Inch Scale Plans $44 olled $4 Info Pack November1998 77 Auto Plug Way Valve

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