U Joe Wagner ff47x p inrqm NiLi4 Ii W 111 -V IN PREVIOUS column discussed three categories reader questions regularly receive two kinds reader queries didnt mention far difficult answer Please send available information _______ get about request sort per column doesnt matter much what subjects being inquired about CO2 motors ABC engines diesel fuel some specific make old-time engine usuaily would take goodsized book supply available information can appreciate motivation behind sort query reader finds out about something strikes interest strongly something knew nothing previously enthusiastically sends letter E-mail message wanting find out about intriguing new topic Few reference books devoted model airplane engines available nowadays Hardly few can found shelves local public library So never ignore readers requests information its difficult provide tell inquirers probably realize just extensive information may theyre asking Two-stroke four-stroke internal combustion engines have around centuryand surprising number both types have produced model-sized versions compressedair CO2 motors model airplanes have development history 60 years long other impossible question readers often ask Whats best engine _______ es no way can answer severai reasons write column mainly non-competition model fliersmodelers like build fly miniature airplanes purely enjoyment Well enjoyment highly subjective sort thing What person likes intensely another may dislike just strongly few years ago bought new RC engine type Ed never tried before broke long slow test stand complete checked performance throttle response various propellers friend came testing became greatly impressed Say would willing sell engine have new airplane would just right friend asked wasnt reaily eager part new engine friends highly persuasive guy made offer couldnt refuse However few days later pal came back place asked Whats chances getting refund power plant sold No nothing wrong engine friend installed new model difficulty flew successfully few timesbut put just dont like much thought would took engine back later mounted airplane own Ive happily flying rejected engine last five years Its become dependable RC power plant possess old saying Different strokes different folks remains true ever Personal preferences aside theres stronger reason avoid recommending specific make model engine individual variation spite advances have made during last 65 years design metallurgy manufacturing processes model airplane engines essential all-important stage has never changed engine assembled individuallyby hand model engine factories throughout world parts precision-cast CNC-machined forged stamped centerless ground swaged automatic-screw-machinedare heaped bins trays lazy Susan compartments within easy reach team assemblers no robots installing backplates crankcases wristpins pistons model engine factories individual 64 Model Aviation ar Atom 097 no needle valve Atoms ran quite well knew handle GHQ 52 50 years ago disappointed yet because Larry Rengers conversion RC Magnum 15 Control Line favorable parts fits performs fairly well version using Cox TD 09 venturi needle valve assembly power plant put together component time human beings Most model fliers human element reason variations occur No matter closely specified dimensional tolerances may individual parts model engine theres always possibilityto mention just onethat low limit crankshaft will installed high limit crankcase bearing results engine may run OK sprays wet fog raw fuel behind its propeller driver example own experience Another occasional source trouble foreign material Dirt metal chips can find way engine parts bins conceal themselves casting cavities assemblers working hard fast cant expected find remove impurities especially since theyre really common However finicky friend buys flies several new model engines year RC Control Line types routinely disassembles inspects soon takes out its box tells engine hes bought during last few years hes found something shouldnt have Mostly what finds removes small metal burrs Probably would no harm its best remove things like before have chance hurt anythingsay ball bearing Thats friend goes trouble disassembling cleaning out new engine buys Now same human variable model engine assembly has always existed Good Old Days seldom affected product quality Thats because standard practice major manufacturers test-mn engine before packaging shipping Faulty specimens got caught factory todays model engines pre-run Fox still tests engine make So custom manufacturers such Henry Nelson Dub Jett inexpensive imported model alrplane power plants merely assembled shipped testing Usually works out right High-precision manufacturing processes factory quality control procedures normally ensure May1999 65 1959 Fox Rocket 09 got new lease life glow head All-plastic see-through motor compressed-air-powered reworked take glow plug RO throttle PAW diesel RTF Air Hogs power unit runs impressively well OLD TIME RUBBER PLANS AND LASER CUT PARTS MonT NM flnPIIow JIMMIE ALLEN BA CABIN Plan $100 Pt $800 JIMMIE ALLEN BLUEBIRD FLYiNG ACES MOTH 24 Un CoInnsl Rabbr PIn0000Pl 51100 anzo Classic 215 Sq VkbkeHaAI Plan $700 P1 $2000 AL CASANOS CHAMPIONSHIP STICK LANZO PUSS MOTh Plan $700 Parla $2000 Art Horaks Wander 340 MAN PAC OT Slink Plo 17M pI SINK PLEASE AD 54 SO POE POSTAGE Introducing new line old time plans Laser cut parts Plans CAD ckawn Jim ORelty Jim has over 60 old lime rubber gas plans laser cut kits have designed fiV Call SAM list AJI parts laser cut own 50 watt laser Laser engraved contest plaques available BOB HOLMAN PLANS P 0 BOX 741 SAN BERNARDINO CA 92402 909 885 3959 FAX 889 9307 newly-assembled engine functional exceptions once recommended certain highly regarded make 40-size RC engine friend bought mail-order put prop first time friend shocked engine practically no compression engine assembled its piston ring Model Engine Customization problem often occurs converting older glow head type use standard glow plug Its easy enough punch out old center electrode element say Cox Sportsman 15 Gilbert Thunderhead 11 Fox Rocket 09 glow head drill tap -32 standard plug modelers make change dont like results find engine performance suffers trying various types heat ranges plugs doesnt improve things much problem comes fact glow heads rather thick merely drill out tap standard plug its glow element ends up much higher within combustion chamber original glow head element compression ratio also reduced solution counterbore head before tapping deeply enough glow plugs element will have same position within combustion area original Ive reworked dozen engines way performed better did factory-designed glow head Something else way model engine customizing possible us whove collected goodly bunch various old engines components Ive learned never throw away broken worn-out engine Its parts can come very handy later customization project example Larry Renger Cerritos CA found Cox Tee Dee 09 venturi needle assembly could used convert Magnum 15 RC engine excellent Control Line Stunt power plant its new intake setup Magnum has greatly improved fuel suction runs well ever did its original configuration Ive often made similar conversions Experimentation will often show RC throttle make engine can made fit another great deal work needle valve assembly long tapered point salvaged old clunker will sometimes work better bluntended NV unit came brand-new engine Another addendum topic earlier column compressed-air Z-Motor now available source England SAMS Models similar Chinese-made air motor comes part plastic ready-to-fly airplane called Air Hogs Thats available several sources USTower Hobbies As yet havent figured out convenient way install neat little all-plastic Air Hogs power plant scratch-built model butlwill IMAA Membership Application IewLil RenewalE] FamilyLl Date________ _________________________I I AddressI II City/TownI II State/Province____________________________________ Zip Code_____________________ Phone__________________ Fax_______________ II IMAA#___________ Chapter #_____ AMA#___________ MAAC CanadaI Annual Dues $1500 USA $2000 US Canada& Mexico $3000 US ForeignI ake Check Money Order payable International Miniature Aircraft AssociationI IAny person flys resides United States must show proof membership Academy Model Aeronautic I A order obtain IMAA membership Include copy AMA License number application $I I LJ I toLI Money Remittance Type Mail IMAA Secretary/TreasurerCheck Order U Cashiers Check U DonEVineyardlyear U 2years LI 3years U Amout$____ 205 5 HilIdale RoadFamily memberships no magazine available Salina KS 67401for $750 US year details contact secretaryI High Flight magazine printed quarterly mailed 2nd Class Bulk Mail First Class add $500 USI HF Summer 98 Note First class mail faster delivery sealed envelopeI El 66 Model Aviation
Edition: Model Aviation - 1999/05
Page Numbers: 64, 65, 66
Edition: Model Aviation - 1999/05
Page Numbers: 64, 65, 66
U Joe Wagner ff47x p inrqm NiLi4 Ii W 111 -V IN PREVIOUS column discussed three categories reader questions regularly receive two kinds reader queries didnt mention far difficult answer Please send available information _______ get about request sort per column doesnt matter much what subjects being inquired about CO2 motors ABC engines diesel fuel some specific make old-time engine usuaily would take goodsized book supply available information can appreciate motivation behind sort query reader finds out about something strikes interest strongly something knew nothing previously enthusiastically sends letter E-mail message wanting find out about intriguing new topic Few reference books devoted model airplane engines available nowadays Hardly few can found shelves local public library So never ignore readers requests information its difficult provide tell inquirers probably realize just extensive information may theyre asking Two-stroke four-stroke internal combustion engines have around centuryand surprising number both types have produced model-sized versions compressedair CO2 motors model airplanes have development history 60 years long other impossible question readers often ask Whats best engine _______ es no way can answer severai reasons write column mainly non-competition model fliersmodelers like build fly miniature airplanes purely enjoyment Well enjoyment highly subjective sort thing What person likes intensely another may dislike just strongly few years ago bought new RC engine type Ed never tried before broke long slow test stand complete checked performance throttle response various propellers friend came testing became greatly impressed Say would willing sell engine have new airplane would just right friend asked wasnt reaily eager part new engine friends highly persuasive guy made offer couldnt refuse However few days later pal came back place asked Whats chances getting refund power plant sold No nothing wrong engine friend installed new model difficulty flew successfully few timesbut put just dont like much thought would took engine back later mounted airplane own Ive happily flying rejected engine last five years Its become dependable RC power plant possess old saying Different strokes different folks remains true ever Personal preferences aside theres stronger reason avoid recommending specific make model engine individual variation spite advances have made during last 65 years design metallurgy manufacturing processes model airplane engines essential all-important stage has never changed engine assembled individuallyby hand model engine factories throughout world parts precision-cast CNC-machined forged stamped centerless ground swaged automatic-screw-machinedare heaped bins trays lazy Susan compartments within easy reach team assemblers no robots installing backplates crankcases wristpins pistons model engine factories individual 64 Model Aviation ar Atom 097 no needle valve Atoms ran quite well knew handle GHQ 52 50 years ago disappointed yet because Larry Rengers conversion RC Magnum 15 Control Line favorable parts fits performs fairly well version using Cox TD 09 venturi needle valve assembly power plant put together component time human beings Most model fliers human element reason variations occur No matter closely specified dimensional tolerances may individual parts model engine theres always possibilityto mention just onethat low limit crankshaft will installed high limit crankcase bearing results engine may run OK sprays wet fog raw fuel behind its propeller driver example own experience Another occasional source trouble foreign material Dirt metal chips can find way engine parts bins conceal themselves casting cavities assemblers working hard fast cant expected find remove impurities especially since theyre really common However finicky friend buys flies several new model engines year RC Control Line types routinely disassembles inspects soon takes out its box tells engine hes bought during last few years hes found something shouldnt have Mostly what finds removes small metal burrs Probably would no harm its best remove things like before have chance hurt anythingsay ball bearing Thats friend goes trouble disassembling cleaning out new engine buys Now same human variable model engine assembly has always existed Good Old Days seldom affected product quality Thats because standard practice major manufacturers test-mn engine before packaging shipping Faulty specimens got caught factory todays model engines pre-run Fox still tests engine make So custom manufacturers such Henry Nelson Dub Jett inexpensive imported model alrplane power plants merely assembled shipped testing Usually works out right High-precision manufacturing processes factory quality control procedures normally ensure May1999 65 1959 Fox Rocket 09 got new lease life glow head All-plastic see-through motor compressed-air-powered reworked take glow plug RO throttle PAW diesel RTF Air Hogs power unit runs impressively well OLD TIME RUBBER PLANS AND LASER CUT PARTS MonT NM flnPIIow JIMMIE ALLEN BA CABIN Plan $100 Pt $800 JIMMIE ALLEN BLUEBIRD FLYiNG ACES MOTH 24 Un CoInnsl Rabbr PIn0000Pl 51100 anzo Classic 215 Sq VkbkeHaAI Plan $700 P1 $2000 AL CASANOS CHAMPIONSHIP STICK LANZO PUSS MOTh Plan $700 Parla $2000 Art Horaks Wander 340 MAN PAC OT Slink Plo 17M pI SINK PLEASE AD 54 SO POE POSTAGE Introducing new line old time plans Laser cut parts Plans CAD ckawn Jim ORelty Jim has over 60 old lime rubber gas plans laser cut kits have designed fiV Call SAM list AJI parts laser cut own 50 watt laser Laser engraved contest plaques available BOB HOLMAN PLANS P 0 BOX 741 SAN BERNARDINO CA 92402 909 885 3959 FAX 889 9307 newly-assembled engine functional exceptions once recommended certain highly regarded make 40-size RC engine friend bought mail-order put prop first time friend shocked engine practically no compression engine assembled its piston ring Model Engine Customization problem often occurs converting older glow head type use standard glow plug Its easy enough punch out old center electrode element say Cox Sportsman 15 Gilbert Thunderhead 11 Fox Rocket 09 glow head drill tap -32 standard plug modelers make change dont like results find engine performance suffers trying various types heat ranges plugs doesnt improve things much problem comes fact glow heads rather thick merely drill out tap standard plug its glow element ends up much higher within combustion chamber original glow head element compression ratio also reduced solution counterbore head before tapping deeply enough glow plugs element will have same position within combustion area original Ive reworked dozen engines way performed better did factory-designed glow head Something else way model engine customizing possible us whove collected goodly bunch various old engines components Ive learned never throw away broken worn-out engine Its parts can come very handy later customization project example Larry Renger Cerritos CA found Cox Tee Dee 09 venturi needle assembly could used convert Magnum 15 RC engine excellent Control Line Stunt power plant its new intake setup Magnum has greatly improved fuel suction runs well ever did its original configuration Ive often made similar conversions Experimentation will often show RC throttle make engine can made fit another great deal work needle valve assembly long tapered point salvaged old clunker will sometimes work better bluntended NV unit came brand-new engine Another addendum topic earlier column compressed-air Z-Motor now available source England SAMS Models similar Chinese-made air motor comes part plastic ready-to-fly airplane called Air Hogs Thats available several sources USTower Hobbies As yet havent figured out convenient way install neat little all-plastic Air Hogs power plant scratch-built model butlwill IMAA Membership Application IewLil RenewalE] FamilyLl Date________ _________________________I I AddressI II City/TownI II State/Province____________________________________ Zip Code_____________________ Phone__________________ Fax_______________ II IMAA#___________ Chapter #_____ AMA#___________ MAAC CanadaI Annual Dues $1500 USA $2000 US Canada& Mexico $3000 US ForeignI ake Check Money Order payable International Miniature Aircraft AssociationI IAny person flys resides United States must show proof membership Academy Model Aeronautic I A order obtain IMAA membership Include copy AMA License number application $I I LJ I toLI Money Remittance Type Mail IMAA Secretary/TreasurerCheck Order U Cashiers Check U DonEVineyardlyear U 2years LI 3years U Amout$____ 205 5 HilIdale RoadFamily memberships no magazine available Salina KS 67401for $750 US year details contact secretaryI High Flight magazine printed quarterly mailed 2nd Class Bulk Mail First Class add $500 USI HF Summer 98 Note First class mail faster delivery sealed envelopeI El 66 Model Aviation
Edition: Model Aviation - 1999/05
Page Numbers: 64, 65, 66
U Joe Wagner ff47x p inrqm NiLi4 Ii W 111 -V IN PREVIOUS column discussed three categories reader questions regularly receive two kinds reader queries didnt mention far difficult answer Please send available information _______ get about request sort per column doesnt matter much what subjects being inquired about CO2 motors ABC engines diesel fuel some specific make old-time engine usuaily would take goodsized book supply available information can appreciate motivation behind sort query reader finds out about something strikes interest strongly something knew nothing previously enthusiastically sends letter E-mail message wanting find out about intriguing new topic Few reference books devoted model airplane engines available nowadays Hardly few can found shelves local public library So never ignore readers requests information its difficult provide tell inquirers probably realize just extensive information may theyre asking Two-stroke four-stroke internal combustion engines have around centuryand surprising number both types have produced model-sized versions compressedair CO2 motors model airplanes have development history 60 years long other impossible question readers often ask Whats best engine _______ es no way can answer severai reasons write column mainly non-competition model fliersmodelers like build fly miniature airplanes purely enjoyment Well enjoyment highly subjective sort thing What person likes intensely another may dislike just strongly few years ago bought new RC engine type Ed never tried before broke long slow test stand complete checked performance throttle response various propellers friend came testing became greatly impressed Say would willing sell engine have new airplane would just right friend asked wasnt reaily eager part new engine friends highly persuasive guy made offer couldnt refuse However few days later pal came back place asked Whats chances getting refund power plant sold No nothing wrong engine friend installed new model difficulty flew successfully few timesbut put just dont like much thought would took engine back later mounted airplane own Ive happily flying rejected engine last five years Its become dependable RC power plant possess old saying Different strokes different folks remains true ever Personal preferences aside theres stronger reason avoid recommending specific make model engine individual variation spite advances have made during last 65 years design metallurgy manufacturing processes model airplane engines essential all-important stage has never changed engine assembled individuallyby hand model engine factories throughout world parts precision-cast CNC-machined forged stamped centerless ground swaged automatic-screw-machinedare heaped bins trays lazy Susan compartments within easy reach team assemblers no robots installing backplates crankcases wristpins pistons model engine factories individual 64 Model Aviation ar Atom 097 no needle valve Atoms ran quite well knew handle GHQ 52 50 years ago disappointed yet because Larry Rengers conversion RC Magnum 15 Control Line favorable parts fits performs fairly well version using Cox TD 09 venturi needle valve assembly power plant put together component time human beings Most model fliers human element reason variations occur No matter closely specified dimensional tolerances may individual parts model engine theres always possibilityto mention just onethat low limit crankshaft will installed high limit crankcase bearing results engine may run OK sprays wet fog raw fuel behind its propeller driver example own experience Another occasional source trouble foreign material Dirt metal chips can find way engine parts bins conceal themselves casting cavities assemblers working hard fast cant expected find remove impurities especially since theyre really common However finicky friend buys flies several new model engines year RC Control Line types routinely disassembles inspects soon takes out its box tells engine hes bought during last few years hes found something shouldnt have Mostly what finds removes small metal burrs Probably would no harm its best remove things like before have chance hurt anythingsay ball bearing Thats friend goes trouble disassembling cleaning out new engine buys Now same human variable model engine assembly has always existed Good Old Days seldom affected product quality Thats because standard practice major manufacturers test-mn engine before packaging shipping Faulty specimens got caught factory todays model engines pre-run Fox still tests engine make So custom manufacturers such Henry Nelson Dub Jett inexpensive imported model alrplane power plants merely assembled shipped testing Usually works out right High-precision manufacturing processes factory quality control procedures normally ensure May1999 65 1959 Fox Rocket 09 got new lease life glow head All-plastic see-through motor compressed-air-powered reworked take glow plug RO throttle PAW diesel RTF Air Hogs power unit runs impressively well OLD TIME RUBBER PLANS AND LASER CUT PARTS MonT NM flnPIIow JIMMIE ALLEN BA CABIN Plan $100 Pt $800 JIMMIE ALLEN BLUEBIRD FLYiNG ACES MOTH 24 Un CoInnsl Rabbr PIn0000Pl 51100 anzo Classic 215 Sq VkbkeHaAI Plan $700 P1 $2000 AL CASANOS CHAMPIONSHIP STICK LANZO PUSS MOTh Plan $700 Parla $2000 Art Horaks Wander 340 MAN PAC OT Slink Plo 17M pI SINK PLEASE AD 54 SO POE POSTAGE Introducing new line old time plans Laser cut parts Plans CAD ckawn Jim ORelty Jim has over 60 old lime rubber gas plans laser cut kits have designed fiV Call SAM list AJI parts laser cut own 50 watt laser Laser engraved contest plaques available BOB HOLMAN PLANS P 0 BOX 741 SAN BERNARDINO CA 92402 909 885 3959 FAX 889 9307 newly-assembled engine functional exceptions once recommended certain highly regarded make 40-size RC engine friend bought mail-order put prop first time friend shocked engine practically no compression engine assembled its piston ring Model Engine Customization problem often occurs converting older glow head type use standard glow plug Its easy enough punch out old center electrode element say Cox Sportsman 15 Gilbert Thunderhead 11 Fox Rocket 09 glow head drill tap -32 standard plug modelers make change dont like results find engine performance suffers trying various types heat ranges plugs doesnt improve things much problem comes fact glow heads rather thick merely drill out tap standard plug its glow element ends up much higher within combustion chamber original glow head element compression ratio also reduced solution counterbore head before tapping deeply enough glow plugs element will have same position within combustion area original Ive reworked dozen engines way performed better did factory-designed glow head Something else way model engine customizing possible us whove collected goodly bunch various old engines components Ive learned never throw away broken worn-out engine Its parts can come very handy later customization project example Larry Renger Cerritos CA found Cox Tee Dee 09 venturi needle assembly could used convert Magnum 15 RC engine excellent Control Line Stunt power plant its new intake setup Magnum has greatly improved fuel suction runs well ever did its original configuration Ive often made similar conversions Experimentation will often show RC throttle make engine can made fit another great deal work needle valve assembly long tapered point salvaged old clunker will sometimes work better bluntended NV unit came brand-new engine Another addendum topic earlier column compressed-air Z-Motor now available source England SAMS Models similar Chinese-made air motor comes part plastic ready-to-fly airplane called Air Hogs Thats available several sources USTower Hobbies As yet havent figured out convenient way install neat little all-plastic Air Hogs power plant scratch-built model butlwill IMAA Membership Application IewLil RenewalE] FamilyLl Date________ _________________________I I AddressI II City/TownI II State/Province____________________________________ Zip Code_____________________ Phone__________________ Fax_______________ II IMAA#___________ Chapter #_____ AMA#___________ MAAC CanadaI Annual Dues $1500 USA $2000 US Canada& Mexico $3000 US ForeignI ake Check Money Order payable International Miniature Aircraft AssociationI IAny person flys resides United States must show proof membership Academy Model Aeronautic I A order obtain IMAA membership Include copy AMA License number application $I I LJ I toLI Money Remittance Type Mail IMAA Secretary/TreasurerCheck Order U Cashiers Check U DonEVineyardlyear U 2years LI 3years U Amout$____ 205 5 HilIdale RoadFamily memberships no magazine available Salina KS 67401for $750 US year details contact secretaryI High Flight magazine printed quarterly mailed 2nd Class Bulk Mail First Class add $500 USI HF Summer 98 Note First class mail faster delivery sealed envelopeI El 66 Model Aviation
