THE Max 40 FSR keeps growing popu larity over winter although lucky Californians Floridians having chance really try out conversion RC stunt need needle valve assembly venturi best Ny Supertigre 60 part no 0165 however hard come writing January 30 Dave Brown World Engines didnt have aware need stunt fliers might lucky find local shop ST 46 needle valve assembly OS 35 assembly will probably work spray-bar hole off center Im certain time will work McCoy series 21 needle valve assembly 40 will also work long enough Max has fine threads Second place Nationals finisher Ted Fancher Foster City California has trying Max 40 FSR winter says has about same power 5T46 flew right out box Dont fooled lack compression prior starting Unlike 5T46 needs gobs compression before can say its good Max will feel loose Ted said switched Dukes fuel get castor oil lubrication will have live heavier weight Max 40 since us put nose weight 5T46 will probably out Ted using 125 126 props said wider Zinger 126 seemed run alright As others uses uniflow muffler pressure muffler Gene Martines Custom Master Products venturi 290 also Martine tank size 6 oz enough fuel pattern Ted reported Jim Armour Frank McMillan have also using Max 40 recently both quite pleased engine THE FAI team tryouts control line will probably held Air Force Museums Wright-Patterson AFB Day ton Ohio over Labor Day weekend Continued page 107 May1979 35 Mark Sullivan Livingston NJ five-foot Poisilax foamwlnged stunter Powered Supertigre 46 finished Randolph paint comes 54 ounces An I-beam 67-in wing usca DY UOD McDonald Livonia Ml constructing HP-40 engined Aquilla Like Sullivan used Randolph paint came up same weight54 ounces Modified DuBro muffler installed Jim Armcurs Genie minimum compromise sleek appearance Torrance CA Jim uses popular-in-stunt Supertigre 46 bottom Radio Hatch hatch shown pians satisfactory fit constructed model thus truly conforming contours made t consists two end frames two sides top Build complete box cut out cockpit outline sides top add windscreen small screw keeps hatch place Single-Channel Installation Shown plans typical single-channel system Shown Ace Baby Twin actuator use another system make neces sary changes structure before con struction has proceeded too far Following instructions assume Ace system Wrap receiver battery foam rubber locate far forward possible small scrap frame made t helps keep items position actuator bolted 1/16 plywood platform built over wing structure fuselage platform rigged slight angle torque wire can run straight back rudder small nut epoxied under ply platform used actuator attachment torque wire bent right angles its forward end end attached arm actuator scrap plastic tubing back end torque wire runs through balsa block fairing scrap inner nyrod epoxied inside block used bearing Rudder actuator made scrap wire small loop bent its lower end actuator installed together torque wire slip loop over rear end torque wire Center actuator check small wire vertical solder two wires together Rudder actuator wire fits loop bolted rudder small piece plastic tube slipped over wire helps reduce interference radio Two-Channel Installation used Can non fitted radio cavity quite easily receiver servo screwed plate epoxied onto two hardwood rails attached fuselage side battery pack located front underneath ply plate installed prior fitting receiver Pushrods made 1/16 wire alsa connecting servos typical installation Ace servos new small Kraft equipment can befitted emphasis placing heavier pieces radio forward Covering single-channel version covered colored tissue clear dope finish wings color dope fuse lagethis keep weight low possible because engine intended use isnt powerhouse used two-channel model used Solarfilm over lightweight finish lower Beautiful New 44 Tn-Pacer developed 2 4 channel RiC expertly designed featuring accurately die-cut Balsa pre cisely vacuum-formed parts Hardware detailed Plans Instructions powered version good idea dont get too carried away trim scheme Flying First ground-check order Determine model balances around CG location shown Look remove warps found two-channel version will take off quite happily runway single-channel model better off hand launched Capability determined first flight perform several test ffights making small revisions balance control throws determine optimum settings should fun CL Aerobatics/Paul continued page 35 according PAMPA President Keith Trostle Museums 7000-foot runway will accommodate anybodys line length will available week practice remember 76 Nats runway used CL racing events RC pylon will first combined tryouts stunt speed team race since 1971 Some Precision Aerobatics judges have already lined up event director Keith Trostle World Champion Bob Hunt scheduled assistant event director Doug McGinnis Fawn Grove PA 17321 has written Model Aviation wanting know stunt planes can fly have symmetrical airfoil should create reduced air pressure both top bottom wing Perhaps some theoretical types could help clear up Lou Dudka New Jersey comes method finishing stunt plane using Hobbypoxy white undercoater H-i 9 says put two coats clear dope over bare wood sanded lightly 220 Hobbypoxy white undercoater mixed up 2 parts white part hardener allowed sit two days ajar open after mixing precuring undercoater applied playing card method brush thickly use playing card other stiff cardboard scrape off second coat applied quite lightly put plane Sand 150 220 paper dry should fill wood completely Next base coat Aero-gloss clear sprayed Two coats best give paint good base adhere favorite paint applied dynamite finish According Lou method just will shrink upon final drying still too late volunteer work 1979 Nationals Lincoln Ne braska July 30-August 4 Event director Lanny Shorts still needs judges recorders circle engineers set up paint lines assistant pit bosses score tabulator couriers May1979 107 L Kit FS37$2995Scale 1~1 Another Great R/C KitFor 049-1O Engines 1L1 9 SHIRT AMA WINGS AMA Wings 4 COLOR$650 PERMISSION FROM AMA Size S M L XL ostage custom work Clubs special events businesses Information sent request FLI * HIRT 5132 DEL REV VEGAS NEVADA 702 878-162489102 PLANS7 MAP range plans England largest compre hensive world Buya plans handbook find out yourself handbook contains full details of thousands plans prices plans available US agents listed handbooks Aeromodeiling Model Boats Cars Modei Engineering Radio ControlAircraft model Allied MAP PUbli wtiom Ltd runners sanitary engineers clean up end day Half-A judges test pilots judging practice Monday July 30 Contact Lanny 661 Louie Avenue Lodi CA 95240 tel 209 3689492 request has made infor mation Cobra originally designed Steve Wooley 35-size ship classic style turtle deck long slim fuselage similar Ares Steve built Cobra sometime 1969 70 magazine article did appear now defunct American Aircraft Modeler until February 1971 Steve built few air planes preferring race sports cars unfortunately cause death racing accident 1970 talented flier professed dislike practicing however managed finish fourth World Championships 1960 66 68 third place 1962 Nats open second 58 Nats senior division Cobra modernization Wooleys Argus used 1960 World Champs Cobra approxi mately 580 sq wing 10375 root chord front moment arm 935 m rear moment arm 1375 stab approximately 25 in span Steve stated Cobra article plane slightly larger wing area flap area earlier Argus stab also larger Argus built late SOs very similar Bill Werwages Ares surprising since Bill Steve close friends Argus Cobra built Steve I-beam wings large wheel pants slim fuselages charac teristic Detroiter style stunt ships SOs early 60s Plans Cobra probably non existant since AAM went out business could obtain old copy maga zine article plans appeared article same applies Argus appeared American Modeler August 1961 Plans Ares Bill Werwage still available through Hobby Helpers 1543 StilIwell Avenue Bronx NY 10461 plan Group 560 Mike Ditrich 2402 Penna Avenue Erie PA 16503 has built succession of46 size Cobras I-beam wings very good airplanes will fly anything turn very well improvement over original Cobra might contact Mike some basic dimensions Unfor tunately could find picture Mikes airplanes time writing information stunt PAMPA write Wynn PauL 1640 Maywick Dr Lexington KY 40504 CL Speed/Hempel continued page 37 leakage due loosening part becomes extremely hot during pipe runs Dimensions shown Pipe Adapter drawing important clamp ID cylinder OD exactly same dimen sion prevent distortion tightening Further contour exhaust opening clamp good match cylinder exhaust added rpm 8 Pipe pipe purchased Dub Jett Dimensions shown drawing Tuned Pipe pipe made aluminum has aluminum soldered Make sure no leaks check after flight use Epoxy-Patch 1 iC black made Hysol Div Dexter Corp seal small leaks pipe adapter mounted engine pipe place distance plug center end pipe 10 Plug center pipe maximum diameter 7 7/16 9 Plug Although Gb-Bee plug yields higher non-piped rpm ground air performance pipe has disap pointing best performance use stock Cox plug machine OD Gb-Bee button configuration hold down Glow-Bee clamp generally use gasket plug blows on pipe flight Russian Roulette chance taking plug element ports damaging cylinder piston nature speed score marks too deep cylinder can lightly polished using following technique Make small aluminum expandable man drel fits cylinder Mount mandrel drill press lathe Place cylinder onto mandrel plenty Marvel Mystery Oil expand mandrel until just starts make contact cylinder walls Hold cylinder mandrel rotates stroking cylinder gently observe can get rid score marks method will usually need replace piston replace piston need start over honing lapping new piston fit plug must extremely tight before run prevent loosening flight loose plug will ininiediately cause engine go overlean Use two wrenches cylinder plug tighten plug properly 10 Prop have tried props have learned singie blade prop far fastest 1/2 speed single blade used date dimensioned Prop drawing Rev-Up 55 cut shown station 3 4 Prather Pitch Gauge reads S pitch 4 h tip Its balanced similarly standard prop have experimenting props 11 Ball Socket high rpm sooner later rod piston ball socket will loosen try judge tighten amount sound play using normal Kirn reset tool flat aluminum plate losing 50% pistons due distortion OD 108 Model Aviation ME AND MY RC 4 COLOR EXCLUSIVE RIGHTS FROM ROYAL CROWN COLA choice PLANE S BOAT CAR Ofl poly FLI CAP ester/ Cotton T-shirt Handbook Handbook 2 Handbook 3 Handbook 4 Available USA Price $150 including postage Sales Office PO Box 35 BrIdge Street Hemel Hempeteed Hens HP1 lEE England
Edition: Model Aviation - 1979/05
Page Numbers: 35, 107, 108
THE Max 40 FSR keeps growing popu larity over winter although lucky Californians Floridians having chance really try out conversion RC stunt need needle valve assembly venturi best Ny Supertigre 60 part no 0165 however hard come writing January 30 Dave Brown World Engines didnt have aware need stunt fliers might lucky find local shop ST 46 needle valve assembly OS 35 assembly will probably work spray-bar hole off center Im certain time will work McCoy series 21 needle valve assembly 40 will also work long enough Max has fine threads Second place Nationals finisher Ted Fancher Foster City California has trying Max 40 FSR winter says has about same power 5T46 flew right out box Dont fooled lack compression prior starting Unlike 5T46 needs gobs compression before can say its good Max will feel loose Ted said switched Dukes fuel get castor oil lubrication will have live heavier weight Max 40 since us put nose weight 5T46 will probably out Ted using 125 126 props said wider Zinger 126 seemed run alright As others uses uniflow muffler pressure muffler Gene Martines Custom Master Products venturi 290 also Martine tank size 6 oz enough fuel pattern Ted reported Jim Armour Frank McMillan have also using Max 40 recently both quite pleased engine THE FAI team tryouts control line will probably held Air Force Museums Wright-Patterson AFB Day ton Ohio over Labor Day weekend Continued page 107 May1979 35 Mark Sullivan Livingston NJ five-foot Poisilax foamwlnged stunter Powered Supertigre 46 finished Randolph paint comes 54 ounces An I-beam 67-in wing usca DY UOD McDonald Livonia Ml constructing HP-40 engined Aquilla Like Sullivan used Randolph paint came up same weight54 ounces Modified DuBro muffler installed Jim Armcurs Genie minimum compromise sleek appearance Torrance CA Jim uses popular-in-stunt Supertigre 46 bottom Radio Hatch hatch shown pians satisfactory fit constructed model thus truly conforming contours made t consists two end frames two sides top Build complete box cut out cockpit outline sides top add windscreen small screw keeps hatch place Single-Channel Installation Shown plans typical single-channel system Shown Ace Baby Twin actuator use another system make neces sary changes structure before con struction has proceeded too far Following instructions assume Ace system Wrap receiver battery foam rubber locate far forward possible small scrap frame made t helps keep items position actuator bolted 1/16 plywood platform built over wing structure fuselage platform rigged slight angle torque wire can run straight back rudder small nut epoxied under ply platform used actuator attachment torque wire bent right angles its forward end end attached arm actuator scrap plastic tubing back end torque wire runs through balsa block fairing scrap inner nyrod epoxied inside block used bearing Rudder actuator made scrap wire small loop bent its lower end actuator installed together torque wire slip loop over rear end torque wire Center actuator check small wire vertical solder two wires together Rudder actuator wire fits loop bolted rudder small piece plastic tube slipped over wire helps reduce interference radio Two-Channel Installation used Can non fitted radio cavity quite easily receiver servo screwed plate epoxied onto two hardwood rails attached fuselage side battery pack located front underneath ply plate installed prior fitting receiver Pushrods made 1/16 wire alsa connecting servos typical installation Ace servos new small Kraft equipment can befitted emphasis placing heavier pieces radio forward Covering single-channel version covered colored tissue clear dope finish wings color dope fuse lagethis keep weight low possible because engine intended use isnt powerhouse used two-channel model used Solarfilm over lightweight finish lower Beautiful New 44 Tn-Pacer developed 2 4 channel RiC expertly designed featuring accurately die-cut Balsa pre cisely vacuum-formed parts Hardware detailed Plans Instructions powered version good idea dont get too carried away trim scheme Flying First ground-check order Determine model balances around CG location shown Look remove warps found two-channel version will take off quite happily runway single-channel model better off hand launched Capability determined first flight perform several test ffights making small revisions balance control throws determine optimum settings should fun CL Aerobatics/Paul continued page 35 according PAMPA President Keith Trostle Museums 7000-foot runway will accommodate anybodys line length will available week practice remember 76 Nats runway used CL racing events RC pylon will first combined tryouts stunt speed team race since 1971 Some Precision Aerobatics judges have already lined up event director Keith Trostle World Champion Bob Hunt scheduled assistant event director Doug McGinnis Fawn Grove PA 17321 has written Model Aviation wanting know stunt planes can fly have symmetrical airfoil should create reduced air pressure both top bottom wing Perhaps some theoretical types could help clear up Lou Dudka New Jersey comes method finishing stunt plane using Hobbypoxy white undercoater H-i 9 says put two coats clear dope over bare wood sanded lightly 220 Hobbypoxy white undercoater mixed up 2 parts white part hardener allowed sit two days ajar open after mixing precuring undercoater applied playing card method brush thickly use playing card other stiff cardboard scrape off second coat applied quite lightly put plane Sand 150 220 paper dry should fill wood completely Next base coat Aero-gloss clear sprayed Two coats best give paint good base adhere favorite paint applied dynamite finish According Lou method just will shrink upon final drying still too late volunteer work 1979 Nationals Lincoln Ne braska July 30-August 4 Event director Lanny Shorts still needs judges recorders circle engineers set up paint lines assistant pit bosses score tabulator couriers May1979 107 L Kit FS37$2995Scale 1~1 Another Great R/C KitFor 049-1O Engines 1L1 9 SHIRT AMA WINGS AMA Wings 4 COLOR$650 PERMISSION FROM AMA Size S M L XL ostage custom work Clubs special events businesses Information sent request FLI * HIRT 5132 DEL REV VEGAS NEVADA 702 878-162489102 PLANS7 MAP range plans England largest compre hensive world Buya plans handbook find out yourself handbook contains full details of thousands plans prices plans available US agents listed handbooks Aeromodeiling Model Boats Cars Modei Engineering Radio ControlAircraft model Allied MAP PUbli wtiom Ltd runners sanitary engineers clean up end day Half-A judges test pilots judging practice Monday July 30 Contact Lanny 661 Louie Avenue Lodi CA 95240 tel 209 3689492 request has made infor mation Cobra originally designed Steve Wooley 35-size ship classic style turtle deck long slim fuselage similar Ares Steve built Cobra sometime 1969 70 magazine article did appear now defunct American Aircraft Modeler until February 1971 Steve built few air planes preferring race sports cars unfortunately cause death racing accident 1970 talented flier professed dislike practicing however managed finish fourth World Championships 1960 66 68 third place 1962 Nats open second 58 Nats senior division Cobra modernization Wooleys Argus used 1960 World Champs Cobra approxi mately 580 sq wing 10375 root chord front moment arm 935 m rear moment arm 1375 stab approximately 25 in span Steve stated Cobra article plane slightly larger wing area flap area earlier Argus stab also larger Argus built late SOs very similar Bill Werwages Ares surprising since Bill Steve close friends Argus Cobra built Steve I-beam wings large wheel pants slim fuselages charac teristic Detroiter style stunt ships SOs early 60s Plans Cobra probably non existant since AAM went out business could obtain old copy maga zine article plans appeared article same applies Argus appeared American Modeler August 1961 Plans Ares Bill Werwage still available through Hobby Helpers 1543 StilIwell Avenue Bronx NY 10461 plan Group 560 Mike Ditrich 2402 Penna Avenue Erie PA 16503 has built succession of46 size Cobras I-beam wings very good airplanes will fly anything turn very well improvement over original Cobra might contact Mike some basic dimensions Unfor tunately could find picture Mikes airplanes time writing information stunt PAMPA write Wynn PauL 1640 Maywick Dr Lexington KY 40504 CL Speed/Hempel continued page 37 leakage due loosening part becomes extremely hot during pipe runs Dimensions shown Pipe Adapter drawing important clamp ID cylinder OD exactly same dimen sion prevent distortion tightening Further contour exhaust opening clamp good match cylinder exhaust added rpm 8 Pipe pipe purchased Dub Jett Dimensions shown drawing Tuned Pipe pipe made aluminum has aluminum soldered Make sure no leaks check after flight use Epoxy-Patch 1 iC black made Hysol Div Dexter Corp seal small leaks pipe adapter mounted engine pipe place distance plug center end pipe 10 Plug center pipe maximum diameter 7 7/16 9 Plug Although Gb-Bee plug yields higher non-piped rpm ground air performance pipe has disap pointing best performance use stock Cox plug machine OD Gb-Bee button configuration hold down Glow-Bee clamp generally use gasket plug blows on pipe flight Russian Roulette chance taking plug element ports damaging cylinder piston nature speed score marks too deep cylinder can lightly polished using following technique Make small aluminum expandable man drel fits cylinder Mount mandrel drill press lathe Place cylinder onto mandrel plenty Marvel Mystery Oil expand mandrel until just starts make contact cylinder walls Hold cylinder mandrel rotates stroking cylinder gently observe can get rid score marks method will usually need replace piston replace piston need start over honing lapping new piston fit plug must extremely tight before run prevent loosening flight loose plug will ininiediately cause engine go overlean Use two wrenches cylinder plug tighten plug properly 10 Prop have tried props have learned singie blade prop far fastest 1/2 speed single blade used date dimensioned Prop drawing Rev-Up 55 cut shown station 3 4 Prather Pitch Gauge reads S pitch 4 h tip Its balanced similarly standard prop have experimenting props 11 Ball Socket high rpm sooner later rod piston ball socket will loosen try judge tighten amount sound play using normal Kirn reset tool flat aluminum plate losing 50% pistons due distortion OD 108 Model Aviation ME AND MY RC 4 COLOR EXCLUSIVE RIGHTS FROM ROYAL CROWN COLA choice PLANE S BOAT CAR Ofl poly FLI CAP ester/ Cotton T-shirt Handbook Handbook 2 Handbook 3 Handbook 4 Available USA Price $150 including postage Sales Office PO Box 35 BrIdge Street Hemel Hempeteed Hens HP1 lEE England
Edition: Model Aviation - 1979/05
Page Numbers: 35, 107, 108
THE Max 40 FSR keeps growing popu larity over winter although lucky Californians Floridians having chance really try out conversion RC stunt need needle valve assembly venturi best Ny Supertigre 60 part no 0165 however hard come writing January 30 Dave Brown World Engines didnt have aware need stunt fliers might lucky find local shop ST 46 needle valve assembly OS 35 assembly will probably work spray-bar hole off center Im certain time will work McCoy series 21 needle valve assembly 40 will also work long enough Max has fine threads Second place Nationals finisher Ted Fancher Foster City California has trying Max 40 FSR winter says has about same power 5T46 flew right out box Dont fooled lack compression prior starting Unlike 5T46 needs gobs compression before can say its good Max will feel loose Ted said switched Dukes fuel get castor oil lubrication will have live heavier weight Max 40 since us put nose weight 5T46 will probably out Ted using 125 126 props said wider Zinger 126 seemed run alright As others uses uniflow muffler pressure muffler Gene Martines Custom Master Products venturi 290 also Martine tank size 6 oz enough fuel pattern Ted reported Jim Armour Frank McMillan have also using Max 40 recently both quite pleased engine THE FAI team tryouts control line will probably held Air Force Museums Wright-Patterson AFB Day ton Ohio over Labor Day weekend Continued page 107 May1979 35 Mark Sullivan Livingston NJ five-foot Poisilax foamwlnged stunter Powered Supertigre 46 finished Randolph paint comes 54 ounces An I-beam 67-in wing usca DY UOD McDonald Livonia Ml constructing HP-40 engined Aquilla Like Sullivan used Randolph paint came up same weight54 ounces Modified DuBro muffler installed Jim Armcurs Genie minimum compromise sleek appearance Torrance CA Jim uses popular-in-stunt Supertigre 46 bottom Radio Hatch hatch shown pians satisfactory fit constructed model thus truly conforming contours made t consists two end frames two sides top Build complete box cut out cockpit outline sides top add windscreen small screw keeps hatch place Single-Channel Installation Shown plans typical single-channel system Shown Ace Baby Twin actuator use another system make neces sary changes structure before con struction has proceeded too far Following instructions assume Ace system Wrap receiver battery foam rubber locate far forward possible small scrap frame made t helps keep items position actuator bolted 1/16 plywood platform built over wing structure fuselage platform rigged slight angle torque wire can run straight back rudder small nut epoxied under ply platform used actuator attachment torque wire bent right angles its forward end end attached arm actuator scrap plastic tubing back end torque wire runs through balsa block fairing scrap inner nyrod epoxied inside block used bearing Rudder actuator made scrap wire small loop bent its lower end actuator installed together torque wire slip loop over rear end torque wire Center actuator check small wire vertical solder two wires together Rudder actuator wire fits loop bolted rudder small piece plastic tube slipped over wire helps reduce interference radio Two-Channel Installation used Can non fitted radio cavity quite easily receiver servo screwed plate epoxied onto two hardwood rails attached fuselage side battery pack located front underneath ply plate installed prior fitting receiver Pushrods made 1/16 wire alsa connecting servos typical installation Ace servos new small Kraft equipment can befitted emphasis placing heavier pieces radio forward Covering single-channel version covered colored tissue clear dope finish wings color dope fuse lagethis keep weight low possible because engine intended use isnt powerhouse used two-channel model used Solarfilm over lightweight finish lower Beautiful New 44 Tn-Pacer developed 2 4 channel RiC expertly designed featuring accurately die-cut Balsa pre cisely vacuum-formed parts Hardware detailed Plans Instructions powered version good idea dont get too carried away trim scheme Flying First ground-check order Determine model balances around CG location shown Look remove warps found two-channel version will take off quite happily runway single-channel model better off hand launched Capability determined first flight perform several test ffights making small revisions balance control throws determine optimum settings should fun CL Aerobatics/Paul continued page 35 according PAMPA President Keith Trostle Museums 7000-foot runway will accommodate anybodys line length will available week practice remember 76 Nats runway used CL racing events RC pylon will first combined tryouts stunt speed team race since 1971 Some Precision Aerobatics judges have already lined up event director Keith Trostle World Champion Bob Hunt scheduled assistant event director Doug McGinnis Fawn Grove PA 17321 has written Model Aviation wanting know stunt planes can fly have symmetrical airfoil should create reduced air pressure both top bottom wing Perhaps some theoretical types could help clear up Lou Dudka New Jersey comes method finishing stunt plane using Hobbypoxy white undercoater H-i 9 says put two coats clear dope over bare wood sanded lightly 220 Hobbypoxy white undercoater mixed up 2 parts white part hardener allowed sit two days ajar open after mixing precuring undercoater applied playing card method brush thickly use playing card other stiff cardboard scrape off second coat applied quite lightly put plane Sand 150 220 paper dry should fill wood completely Next base coat Aero-gloss clear sprayed Two coats best give paint good base adhere favorite paint applied dynamite finish According Lou method just will shrink upon final drying still too late volunteer work 1979 Nationals Lincoln Ne braska July 30-August 4 Event director Lanny Shorts still needs judges recorders circle engineers set up paint lines assistant pit bosses score tabulator couriers May1979 107 L Kit FS37$2995Scale 1~1 Another Great R/C KitFor 049-1O Engines 1L1 9 SHIRT AMA WINGS AMA Wings 4 COLOR$650 PERMISSION FROM AMA Size S M L XL ostage custom work Clubs special events businesses Information sent request FLI * HIRT 5132 DEL REV VEGAS NEVADA 702 878-162489102 PLANS7 MAP range plans England largest compre hensive world Buya plans handbook find out yourself handbook contains full details of thousands plans prices plans available US agents listed handbooks Aeromodeiling Model Boats Cars Modei Engineering Radio ControlAircraft model Allied MAP PUbli wtiom Ltd runners sanitary engineers clean up end day Half-A judges test pilots judging practice Monday July 30 Contact Lanny 661 Louie Avenue Lodi CA 95240 tel 209 3689492 request has made infor mation Cobra originally designed Steve Wooley 35-size ship classic style turtle deck long slim fuselage similar Ares Steve built Cobra sometime 1969 70 magazine article did appear now defunct American Aircraft Modeler until February 1971 Steve built few air planes preferring race sports cars unfortunately cause death racing accident 1970 talented flier professed dislike practicing however managed finish fourth World Championships 1960 66 68 third place 1962 Nats open second 58 Nats senior division Cobra modernization Wooleys Argus used 1960 World Champs Cobra approxi mately 580 sq wing 10375 root chord front moment arm 935 m rear moment arm 1375 stab approximately 25 in span Steve stated Cobra article plane slightly larger wing area flap area earlier Argus stab also larger Argus built late SOs very similar Bill Werwages Ares surprising since Bill Steve close friends Argus Cobra built Steve I-beam wings large wheel pants slim fuselages charac teristic Detroiter style stunt ships SOs early 60s Plans Cobra probably non existant since AAM went out business could obtain old copy maga zine article plans appeared article same applies Argus appeared American Modeler August 1961 Plans Ares Bill Werwage still available through Hobby Helpers 1543 StilIwell Avenue Bronx NY 10461 plan Group 560 Mike Ditrich 2402 Penna Avenue Erie PA 16503 has built succession of46 size Cobras I-beam wings very good airplanes will fly anything turn very well improvement over original Cobra might contact Mike some basic dimensions Unfor tunately could find picture Mikes airplanes time writing information stunt PAMPA write Wynn PauL 1640 Maywick Dr Lexington KY 40504 CL Speed/Hempel continued page 37 leakage due loosening part becomes extremely hot during pipe runs Dimensions shown Pipe Adapter drawing important clamp ID cylinder OD exactly same dimen sion prevent distortion tightening Further contour exhaust opening clamp good match cylinder exhaust added rpm 8 Pipe pipe purchased Dub Jett Dimensions shown drawing Tuned Pipe pipe made aluminum has aluminum soldered Make sure no leaks check after flight use Epoxy-Patch 1 iC black made Hysol Div Dexter Corp seal small leaks pipe adapter mounted engine pipe place distance plug center end pipe 10 Plug center pipe maximum diameter 7 7/16 9 Plug Although Gb-Bee plug yields higher non-piped rpm ground air performance pipe has disap pointing best performance use stock Cox plug machine OD Gb-Bee button configuration hold down Glow-Bee clamp generally use gasket plug blows on pipe flight Russian Roulette chance taking plug element ports damaging cylinder piston nature speed score marks too deep cylinder can lightly polished using following technique Make small aluminum expandable man drel fits cylinder Mount mandrel drill press lathe Place cylinder onto mandrel plenty Marvel Mystery Oil expand mandrel until just starts make contact cylinder walls Hold cylinder mandrel rotates stroking cylinder gently observe can get rid score marks method will usually need replace piston replace piston need start over honing lapping new piston fit plug must extremely tight before run prevent loosening flight loose plug will ininiediately cause engine go overlean Use two wrenches cylinder plug tighten plug properly 10 Prop have tried props have learned singie blade prop far fastest 1/2 speed single blade used date dimensioned Prop drawing Rev-Up 55 cut shown station 3 4 Prather Pitch Gauge reads S pitch 4 h tip Its balanced similarly standard prop have experimenting props 11 Ball Socket high rpm sooner later rod piston ball socket will loosen try judge tighten amount sound play using normal Kirn reset tool flat aluminum plate losing 50% pistons due distortion OD 108 Model Aviation ME AND MY RC 4 COLOR EXCLUSIVE RIGHTS FROM ROYAL CROWN COLA choice PLANE S BOAT CAR Ofl poly FLI CAP ester/ Cotton T-shirt Handbook Handbook 2 Handbook 3 Handbook 4 Available USA Price $150 including postage Sales Office PO Box 35 BrIdge Street Hemel Hempeteed Hens HP1 lEE England