Radio Control Sport Aerobatics RonVan Putte LATELY has lot discus sion about providing incentive beginning pattern flier several obstacles new pattern competitors unwilling overcome recent reduction attendance pattern contests testifies need consider changes can made encourage new pattern fliers Two problems new pattern fliers face high caliber flying ability within Novice class very com plex expensive airplanes flown competition time good flier could bring Out Ugly Stick Senior Falcon another such airplane stand chance placing con test except maybe Nats cant done Because flying ability classes has improved Novice class partic ular has become very competitive Since good Novice class fliers very difficult earn enough advance ment points move Advanced class Consequently good fliers stay Novice class taking 4th 5th 6th place against 15 25 competitors never earn advancement points beginning Novice flier goes contest faces several great fliers will advance quickly good fliers will advance slowly must very disheartening face what appears bunch trophy hunters actually just good fliers trying fight way out Novice add insult injury new pattern competitor discovers fixed-gear sport airplane must face what appears horde Dirty Birdy UFO Curare Phoenix airplanes retractable landing gear Schnuerle-ported super engines tuned pipes true possession highly competitive airplane Continued page 96 28 Model Aviation Dan Sheridan captured sixth Novice 78 Nats combination expensive airplane radio tuned pipe combination required win classes pattern scarea off competitors discussing situation month youll find Ron has feet ground Seen 78 Nats great team Glen Charlene Fields both compete Charlene District 5 RC Pattern contest coordinator will come surprise Ron felt youd want meet popular MA columnist flying buddy Dick McGraw assists Rons Phoenix 6-7/8 last Nats What Phoenix ATYPICAL ELEVAT/RuOOER INSlALLATION -xxxx 7G&PLIiIIiNGE COONEY * EASY INSTALLATION * NO AR GAP * FREE MOVEMENT * STRONG AND LIGHTWEIGHT MPLETELY FUELPROOF * COMPATIBLE WITH ALL IRON-ON COVERINGS FOURMOST RACING PRODU CTS 24th Avenue caution black color Coverite used tended bleed yellow Cover ite insignia trim Glaskote later used seal lettering would have prevented color bleeding painted contact surface prior trimming final installation assembly methods devised retaining fuel tank installing muffler providing good looking landing light lens First found square 12ounce Sullivan fuel tank fits nicely quart size cardboard milk carton simple matter cut position hold container place bulkhead #2 flat pieces apple taffy sticks important make installation removable access servos Another good way make engine bulkhead removable firewall complete engine fuel tank Secondly Slim Line Muffler fine engine installation should modified install right angles Beside looking much better muffler can re main engine during assembly removal cowling Viewed side modified muffler appears position imitates air inlet dummy engine Thirdly very realistic looking lens landing lights can made about five minutes Simply acquire pair plastic egg containers wife girl friend has purchased two pair Leggs panty hose Use largest end egg scribe required diameter circle inside spinning small compass Using pair scissors cut crack ing inscribed circle Attach lenses landing lights Pliobond cement record landing lights black dress up piano wire landing gear decided use large size straight plastic soda straws Short pieces black neoprene tubing Sullivan split snapped around wire concentrically space ends split plastic soda straws conceal split straws two concentric straws used splits oriented 1800 apart wire outside split can covered TYPICAL AILERO*J1NSTA L-A ON xX-x 35 length invisible Scotch tape fore after painting Likewise ends can retained wrap same tape Tests proved tape could doped fact dope will stay tape little loss gloss whereas dope may tend flake off smooth plastic straws flexed Sanding straws lightly roughen surface helps flight straws fly off Since Olco struts larger decided use cut off plastic barrel sec tions black felt pens sections pens split lengthwise means Xacto saw snapped over piano wire Concentric spacing accomplished build-up split neoprene tubing Axial shift pieces pens prevented Goo cement rubber like modelers cement author also applies prevent wheel colars com ing off etc preparation flying landing lights scale engine cowl re moved pair 3-in diameter wheels 13-5 propeller installed model balanced 12 ounces lead two 6 ounce sinkers engine mount moved CG forward about 30% location general everything done compen sate unwanted torque effects assure model would fly tail heavy Now happiest reward ing part test flights prototype Frank Stanton friend fellow club member agreed serve test pilot club field Johnsville NADC Warminster PA first check flight complete success Indications less ballast could have used trim adjustments required 50% left rudder trim 100% up elevator trim means transmitter trim ad justments airplane flew well trim changes surfaces second flight became stunt flight Would believe Frank flew large portion rolling circle Barring low sun position Frank probably would have gone way around Allowing fact model being flown very capable flier observers noted excellent manner Pitcairn Mailwing responded flight After test flights Franks comments Its good flying airplane Its piece cake fly next flying session Pitcairn Mailwing flown dressed-up inflight pictures time ballast weight reduced about 8 ounces Two flights flown shoot takeoff fly-by landing pictures surpris ing model did roll fast cause ailerons lower wing no differential utilized Aileron turns good turns made using rudder resulted loss al titude unusual Indications smooth grass fly ing fields would preferable hard sur face runways agreement ground handling original airplane flown landing lights scale engine cowl configuration tends protect damage should ground loop occur propeller sur vived two ground loops hard runways final note author has recently purchased Giant Round Balloons made Mexico distributed through World Toy House balloons look very promising use making large en gine cowls easy-does-it method course modelers should overlook possibility obtaining suitable balloons Hobbypoxy people origi nated method RC Aerobatics/Van Putte continued page 28 does guarantee Novice pattern tro phy enough good fliers around have make very difficult great flier win sport airplane several ways proceed al leviating situation have pitfalls will probably take grass roots movement have much effect pattern flying since major changes rules very infrequent unless widespread demonstration need desire change Contest Di rectors will have make decisions offer competition line proposed rule changes see work out National Society Radio Controlled Aerobatics NS RCA can strong fac tor proposed rule changes NSRCA district vice presidents should given feedback proposed changes issues can aired K Factor monthly newsletter NSRCA arent already NSRCA member send $10 1979 dues Mrs Sally Brown Secretary Treasurer 8534 Huddleston Drive Cincinnati OH 45236 thing has tried Con test Directors contests around coun try has introduction special Novice class beginners pattern com petition large contests have 96 Model Aviation LARGESMALL fit saafoces 1/8 thicker substantial number beginner class en tries contest publicity indicated class would available Unfortu nately limited solution since flier must jump fire next contest face hotshots super airplanes Another event has tried few contests met success Nov ice class airplane combination limited have Schnuerle-ported Perry ported en gines tuned pipes functioning retract able landing gear good feature about event provides event beginners some fliers will never great like compete pattern competition Another idea continues gain support handicap Novice event flight scores modified adding points fixed gear conventional engines/mufflers subtracting points functioning retractable landing gear spe cial engine porting tuned pipes An ob vious problem idea assess ment appropriate handicap points different features handicap system can fouled up judges either tougher generous anticipated Yet another idea would ban retractable landing gear special engine porting tuned pipes Novice pattern event entirely might drive down airplane size Novice event somewhat take advantage better power weight ratio using conven tional engine would also place Novice event graduate position need ing new airplane compete Advanced must ideas around country bear consideration have write NSRCA district vice president about can publicized several years have preaching newcomers fuel problems caused glow plug engine has running well starts having problems glow plug should sus pected bad plug can make engine seem lean rich adjusting needle valve may alleviate condi tion way detect plug problem remove battery clip engine idling listen speed change engine speed drops slight amount glow plug should replaced previous test usually suf ficient detect bad plug isnt fool proof CCRCC Fall Carnival near New Orleans Louisiana struggled through four rounds flying alter nately rich lean engine runs discover glow plug element mangled pushed against side chamber new glow plug made fuel problems go away Contest fliers vocal comes problems glow plugs cause bad engine run can spoil compe p CLUCK WORE TIMERSALL SIZE ENGINE MOUNTSPEACE PIPE MUFFLERSSYRINGE FUELERS SURGICAL TURINGSPECIAL ENGINE MGIJNTSCALUMET MUFFLERSPEN BLADDERS NEOPRENE TUNINGTAME MOIORTSMUFFIIT MUFFLERSFUEL TUNE FILLER SCALE INSTRUMENT KITSSPEED PUNSENUINE MANIFOLDSSTICKATARE AMA SUFETY PROP gRITSR/C STEEMANLE ROSE GEARMUFFLER EXTENSIURSENGINE CUVUS ENGINE TEST STUNSR/C MIME MOLO DOARSMACE CAM MUFFLERSFUEL SMUT OFF OULUE GLOW PLUG STARTERNYLON SCREUSCMICKEN STICASPROPELLERS BUTTERY CRURGERNYLON SPINNERSRAZOR OLMOESENGINE NT DRILL JIG tition flight During 1978 contest season heard complaints about de fective glow plugs other years put together Statements like Ive used Brand X plugs years now cant trust anymore very common Perhaps us save defective new plugs discover until have half dozen mail plug manu facturers demand refund replacement manufacturers will get message NSRCA District 6 vice president Earl Haury published caution Novem ber issue K Factor bears re peating articles discussing relative safety points current air craft large aircraft hazard ous aspect mentioned GASOLINE Spark ignition etigines fueled gas oline instead usual alcohol-based fuel gasoline everyday com modity common often overlook just dangerous can flash point minimum temperature flammable vapors will present -45 degrees F gasoline 52 de grees F methanol higher nitromethane Vapor pressure pres sure exerted upon closed container 20 degrees C gasoline four times methanol nearly 12 times nitromethane auto ignition tempera ture temperature material will ignite spontaneously gasoline about half alcohol What means very real probability fire exists crash definite possibility delayed explosion also present quart gasoline exploding pick up damaged model will definitely shorten modeling career life Merely transporting handling storing gasoline infinitely hazardois glow fuel Dont think white gas unleaded high low octane different gasoline demands extreme care handling Thanks Earl Next month plan get back de scriptions perform pattern maneuvers next maneuver description will Stall Turn also plan report couple new products Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Soaring/Pruss continued page 29 originator one-on-one competition cross-country racing club boasts R&D department off shoots have brought about new con struction techniques designs scribe has always felt Rubber Ducky name sailplane didnt justice engineering went re member club also lays claim Ed SbFebruary 1979 97 Shown below just sampling accessories make 4 8180 PIUN OUUsSU ENGINE MOUNTS WMUM FOLDS STEENUILE NOSE NOUNS SEND SIOO 25 paqe illustrated catalog refundable first order TATONE PRODUCTS CORP 1209 GENEVAAVENUE SAN FRANCISCO CA94 112
Edition: Model Aviation - 1979/02
Page Numbers: 28, 96, 97
Radio Control Sport Aerobatics RonVan Putte LATELY has lot discus sion about providing incentive beginning pattern flier several obstacles new pattern competitors unwilling overcome recent reduction attendance pattern contests testifies need consider changes can made encourage new pattern fliers Two problems new pattern fliers face high caliber flying ability within Novice class very com plex expensive airplanes flown competition time good flier could bring Out Ugly Stick Senior Falcon another such airplane stand chance placing con test except maybe Nats cant done Because flying ability classes has improved Novice class partic ular has become very competitive Since good Novice class fliers very difficult earn enough advance ment points move Advanced class Consequently good fliers stay Novice class taking 4th 5th 6th place against 15 25 competitors never earn advancement points beginning Novice flier goes contest faces several great fliers will advance quickly good fliers will advance slowly must very disheartening face what appears bunch trophy hunters actually just good fliers trying fight way out Novice add insult injury new pattern competitor discovers fixed-gear sport airplane must face what appears horde Dirty Birdy UFO Curare Phoenix airplanes retractable landing gear Schnuerle-ported super engines tuned pipes true possession highly competitive airplane Continued page 96 28 Model Aviation Dan Sheridan captured sixth Novice 78 Nats combination expensive airplane radio tuned pipe combination required win classes pattern scarea off competitors discussing situation month youll find Ron has feet ground Seen 78 Nats great team Glen Charlene Fields both compete Charlene District 5 RC Pattern contest coordinator will come surprise Ron felt youd want meet popular MA columnist flying buddy Dick McGraw assists Rons Phoenix 6-7/8 last Nats What Phoenix ATYPICAL ELEVAT/RuOOER INSlALLATION -xxxx 7G&PLIiIIiNGE COONEY * EASY INSTALLATION * NO AR GAP * FREE MOVEMENT * STRONG AND LIGHTWEIGHT MPLETELY FUELPROOF * COMPATIBLE WITH ALL IRON-ON COVERINGS FOURMOST RACING PRODU CTS 24th Avenue caution black color Coverite used tended bleed yellow Cover ite insignia trim Glaskote later used seal lettering would have prevented color bleeding painted contact surface prior trimming final installation assembly methods devised retaining fuel tank installing muffler providing good looking landing light lens First found square 12ounce Sullivan fuel tank fits nicely quart size cardboard milk carton simple matter cut position hold container place bulkhead #2 flat pieces apple taffy sticks important make installation removable access servos Another good way make engine bulkhead removable firewall complete engine fuel tank Secondly Slim Line Muffler fine engine installation should modified install right angles Beside looking much better muffler can re main engine during assembly removal cowling Viewed side modified muffler appears position imitates air inlet dummy engine Thirdly very realistic looking lens landing lights can made about five minutes Simply acquire pair plastic egg containers wife girl friend has purchased two pair Leggs panty hose Use largest end egg scribe required diameter circle inside spinning small compass Using pair scissors cut crack ing inscribed circle Attach lenses landing lights Pliobond cement record landing lights black dress up piano wire landing gear decided use large size straight plastic soda straws Short pieces black neoprene tubing Sullivan split snapped around wire concentrically space ends split plastic soda straws conceal split straws two concentric straws used splits oriented 1800 apart wire outside split can covered TYPICAL AILERO*J1NSTA L-A ON xX-x 35 length invisible Scotch tape fore after painting Likewise ends can retained wrap same tape Tests proved tape could doped fact dope will stay tape little loss gloss whereas dope may tend flake off smooth plastic straws flexed Sanding straws lightly roughen surface helps flight straws fly off Since Olco struts larger decided use cut off plastic barrel sec tions black felt pens sections pens split lengthwise means Xacto saw snapped over piano wire Concentric spacing accomplished build-up split neoprene tubing Axial shift pieces pens prevented Goo cement rubber like modelers cement author also applies prevent wheel colars com ing off etc preparation flying landing lights scale engine cowl re moved pair 3-in diameter wheels 13-5 propeller installed model balanced 12 ounces lead two 6 ounce sinkers engine mount moved CG forward about 30% location general everything done compen sate unwanted torque effects assure model would fly tail heavy Now happiest reward ing part test flights prototype Frank Stanton friend fellow club member agreed serve test pilot club field Johnsville NADC Warminster PA first check flight complete success Indications less ballast could have used trim adjustments required 50% left rudder trim 100% up elevator trim means transmitter trim ad justments airplane flew well trim changes surfaces second flight became stunt flight Would believe Frank flew large portion rolling circle Barring low sun position Frank probably would have gone way around Allowing fact model being flown very capable flier observers noted excellent manner Pitcairn Mailwing responded flight After test flights Franks comments Its good flying airplane Its piece cake fly next flying session Pitcairn Mailwing flown dressed-up inflight pictures time ballast weight reduced about 8 ounces Two flights flown shoot takeoff fly-by landing pictures surpris ing model did roll fast cause ailerons lower wing no differential utilized Aileron turns good turns made using rudder resulted loss al titude unusual Indications smooth grass fly ing fields would preferable hard sur face runways agreement ground handling original airplane flown landing lights scale engine cowl configuration tends protect damage should ground loop occur propeller sur vived two ground loops hard runways final note author has recently purchased Giant Round Balloons made Mexico distributed through World Toy House balloons look very promising use making large en gine cowls easy-does-it method course modelers should overlook possibility obtaining suitable balloons Hobbypoxy people origi nated method RC Aerobatics/Van Putte continued page 28 does guarantee Novice pattern tro phy enough good fliers around have make very difficult great flier win sport airplane several ways proceed al leviating situation have pitfalls will probably take grass roots movement have much effect pattern flying since major changes rules very infrequent unless widespread demonstration need desire change Contest Di rectors will have make decisions offer competition line proposed rule changes see work out National Society Radio Controlled Aerobatics NS RCA can strong fac tor proposed rule changes NSRCA district vice presidents should given feedback proposed changes issues can aired K Factor monthly newsletter NSRCA arent already NSRCA member send $10 1979 dues Mrs Sally Brown Secretary Treasurer 8534 Huddleston Drive Cincinnati OH 45236 thing has tried Con test Directors contests around coun try has introduction special Novice class beginners pattern com petition large contests have 96 Model Aviation LARGESMALL fit saafoces 1/8 thicker substantial number beginner class en tries contest publicity indicated class would available Unfortu nately limited solution since flier must jump fire next contest face hotshots super airplanes Another event has tried few contests met success Nov ice class airplane combination limited have Schnuerle-ported Perry ported en gines tuned pipes functioning retract able landing gear good feature about event provides event beginners some fliers will never great like compete pattern competition Another idea continues gain support handicap Novice event flight scores modified adding points fixed gear conventional engines/mufflers subtracting points functioning retractable landing gear spe cial engine porting tuned pipes An ob vious problem idea assess ment appropriate handicap points different features handicap system can fouled up judges either tougher generous anticipated Yet another idea would ban retractable landing gear special engine porting tuned pipes Novice pattern event entirely might drive down airplane size Novice event somewhat take advantage better power weight ratio using conven tional engine would also place Novice event graduate position need ing new airplane compete Advanced must ideas around country bear consideration have write NSRCA district vice president about can publicized several years have preaching newcomers fuel problems caused glow plug engine has running well starts having problems glow plug should sus pected bad plug can make engine seem lean rich adjusting needle valve may alleviate condi tion way detect plug problem remove battery clip engine idling listen speed change engine speed drops slight amount glow plug should replaced previous test usually suf ficient detect bad plug isnt fool proof CCRCC Fall Carnival near New Orleans Louisiana struggled through four rounds flying alter nately rich lean engine runs discover glow plug element mangled pushed against side chamber new glow plug made fuel problems go away Contest fliers vocal comes problems glow plugs cause bad engine run can spoil compe p CLUCK WORE TIMERSALL SIZE ENGINE MOUNTSPEACE PIPE MUFFLERSSYRINGE FUELERS SURGICAL TURINGSPECIAL ENGINE MGIJNTSCALUMET MUFFLERSPEN BLADDERS NEOPRENE TUNINGTAME MOIORTSMUFFIIT MUFFLERSFUEL TUNE FILLER SCALE INSTRUMENT KITSSPEED PUNSENUINE MANIFOLDSSTICKATARE AMA SUFETY PROP gRITSR/C STEEMANLE ROSE GEARMUFFLER EXTENSIURSENGINE CUVUS ENGINE TEST STUNSR/C MIME MOLO DOARSMACE CAM MUFFLERSFUEL SMUT OFF OULUE GLOW PLUG STARTERNYLON SCREUSCMICKEN STICASPROPELLERS BUTTERY CRURGERNYLON SPINNERSRAZOR OLMOESENGINE NT DRILL JIG tition flight During 1978 contest season heard complaints about de fective glow plugs other years put together Statements like Ive used Brand X plugs years now cant trust anymore very common Perhaps us save defective new plugs discover until have half dozen mail plug manu facturers demand refund replacement manufacturers will get message NSRCA District 6 vice president Earl Haury published caution Novem ber issue K Factor bears re peating articles discussing relative safety points current air craft large aircraft hazard ous aspect mentioned GASOLINE Spark ignition etigines fueled gas oline instead usual alcohol-based fuel gasoline everyday com modity common often overlook just dangerous can flash point minimum temperature flammable vapors will present -45 degrees F gasoline 52 de grees F methanol higher nitromethane Vapor pressure pres sure exerted upon closed container 20 degrees C gasoline four times methanol nearly 12 times nitromethane auto ignition tempera ture temperature material will ignite spontaneously gasoline about half alcohol What means very real probability fire exists crash definite possibility delayed explosion also present quart gasoline exploding pick up damaged model will definitely shorten modeling career life Merely transporting handling storing gasoline infinitely hazardois glow fuel Dont think white gas unleaded high low octane different gasoline demands extreme care handling Thanks Earl Next month plan get back de scriptions perform pattern maneuvers next maneuver description will Stall Turn also plan report couple new products Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Soaring/Pruss continued page 29 originator one-on-one competition cross-country racing club boasts R&D department off shoots have brought about new con struction techniques designs scribe has always felt Rubber Ducky name sailplane didnt justice engineering went re member club also lays claim Ed SbFebruary 1979 97 Shown below just sampling accessories make 4 8180 PIUN OUUsSU ENGINE MOUNTS WMUM FOLDS STEENUILE NOSE NOUNS SEND SIOO 25 paqe illustrated catalog refundable first order TATONE PRODUCTS CORP 1209 GENEVAAVENUE SAN FRANCISCO CA94 112
Edition: Model Aviation - 1979/02
Page Numbers: 28, 96, 97
Radio Control Sport Aerobatics RonVan Putte LATELY has lot discus sion about providing incentive beginning pattern flier several obstacles new pattern competitors unwilling overcome recent reduction attendance pattern contests testifies need consider changes can made encourage new pattern fliers Two problems new pattern fliers face high caliber flying ability within Novice class very com plex expensive airplanes flown competition time good flier could bring Out Ugly Stick Senior Falcon another such airplane stand chance placing con test except maybe Nats cant done Because flying ability classes has improved Novice class partic ular has become very competitive Since good Novice class fliers very difficult earn enough advance ment points move Advanced class Consequently good fliers stay Novice class taking 4th 5th 6th place against 15 25 competitors never earn advancement points beginning Novice flier goes contest faces several great fliers will advance quickly good fliers will advance slowly must very disheartening face what appears bunch trophy hunters actually just good fliers trying fight way out Novice add insult injury new pattern competitor discovers fixed-gear sport airplane must face what appears horde Dirty Birdy UFO Curare Phoenix airplanes retractable landing gear Schnuerle-ported super engines tuned pipes true possession highly competitive airplane Continued page 96 28 Model Aviation Dan Sheridan captured sixth Novice 78 Nats combination expensive airplane radio tuned pipe combination required win classes pattern scarea off competitors discussing situation month youll find Ron has feet ground Seen 78 Nats great team Glen Charlene Fields both compete Charlene District 5 RC Pattern contest coordinator will come surprise Ron felt youd want meet popular MA columnist flying buddy Dick McGraw assists Rons Phoenix 6-7/8 last Nats What Phoenix ATYPICAL ELEVAT/RuOOER INSlALLATION -xxxx 7G&PLIiIIiNGE COONEY * EASY INSTALLATION * NO AR GAP * FREE MOVEMENT * STRONG AND LIGHTWEIGHT MPLETELY FUELPROOF * COMPATIBLE WITH ALL IRON-ON COVERINGS FOURMOST RACING PRODU CTS 24th Avenue caution black color Coverite used tended bleed yellow Cover ite insignia trim Glaskote later used seal lettering would have prevented color bleeding painted contact surface prior trimming final installation assembly methods devised retaining fuel tank installing muffler providing good looking landing light lens First found square 12ounce Sullivan fuel tank fits nicely quart size cardboard milk carton simple matter cut position hold container place bulkhead #2 flat pieces apple taffy sticks important make installation removable access servos Another good way make engine bulkhead removable firewall complete engine fuel tank Secondly Slim Line Muffler fine engine installation should modified install right angles Beside looking much better muffler can re main engine during assembly removal cowling Viewed side modified muffler appears position imitates air inlet dummy engine Thirdly very realistic looking lens landing lights can made about five minutes Simply acquire pair plastic egg containers wife girl friend has purchased two pair Leggs panty hose Use largest end egg scribe required diameter circle inside spinning small compass Using pair scissors cut crack ing inscribed circle Attach lenses landing lights Pliobond cement record landing lights black dress up piano wire landing gear decided use large size straight plastic soda straws Short pieces black neoprene tubing Sullivan split snapped around wire concentrically space ends split plastic soda straws conceal split straws two concentric straws used splits oriented 1800 apart wire outside split can covered TYPICAL AILERO*J1NSTA L-A ON xX-x 35 length invisible Scotch tape fore after painting Likewise ends can retained wrap same tape Tests proved tape could doped fact dope will stay tape little loss gloss whereas dope may tend flake off smooth plastic straws flexed Sanding straws lightly roughen surface helps flight straws fly off Since Olco struts larger decided use cut off plastic barrel sec tions black felt pens sections pens split lengthwise means Xacto saw snapped over piano wire Concentric spacing accomplished build-up split neoprene tubing Axial shift pieces pens prevented Goo cement rubber like modelers cement author also applies prevent wheel colars com ing off etc preparation flying landing lights scale engine cowl re moved pair 3-in diameter wheels 13-5 propeller installed model balanced 12 ounces lead two 6 ounce sinkers engine mount moved CG forward about 30% location general everything done compen sate unwanted torque effects assure model would fly tail heavy Now happiest reward ing part test flights prototype Frank Stanton friend fellow club member agreed serve test pilot club field Johnsville NADC Warminster PA first check flight complete success Indications less ballast could have used trim adjustments required 50% left rudder trim 100% up elevator trim means transmitter trim ad justments airplane flew well trim changes surfaces second flight became stunt flight Would believe Frank flew large portion rolling circle Barring low sun position Frank probably would have gone way around Allowing fact model being flown very capable flier observers noted excellent manner Pitcairn Mailwing responded flight After test flights Franks comments Its good flying airplane Its piece cake fly next flying session Pitcairn Mailwing flown dressed-up inflight pictures time ballast weight reduced about 8 ounces Two flights flown shoot takeoff fly-by landing pictures surpris ing model did roll fast cause ailerons lower wing no differential utilized Aileron turns good turns made using rudder resulted loss al titude unusual Indications smooth grass fly ing fields would preferable hard sur face runways agreement ground handling original airplane flown landing lights scale engine cowl configuration tends protect damage should ground loop occur propeller sur vived two ground loops hard runways final note author has recently purchased Giant Round Balloons made Mexico distributed through World Toy House balloons look very promising use making large en gine cowls easy-does-it method course modelers should overlook possibility obtaining suitable balloons Hobbypoxy people origi nated method RC Aerobatics/Van Putte continued page 28 does guarantee Novice pattern tro phy enough good fliers around have make very difficult great flier win sport airplane several ways proceed al leviating situation have pitfalls will probably take grass roots movement have much effect pattern flying since major changes rules very infrequent unless widespread demonstration need desire change Contest Di rectors will have make decisions offer competition line proposed rule changes see work out National Society Radio Controlled Aerobatics NS RCA can strong fac tor proposed rule changes NSRCA district vice presidents should given feedback proposed changes issues can aired K Factor monthly newsletter NSRCA arent already NSRCA member send $10 1979 dues Mrs Sally Brown Secretary Treasurer 8534 Huddleston Drive Cincinnati OH 45236 thing has tried Con test Directors contests around coun try has introduction special Novice class beginners pattern com petition large contests have 96 Model Aviation LARGESMALL fit saafoces 1/8 thicker substantial number beginner class en tries contest publicity indicated class would available Unfortu nately limited solution since flier must jump fire next contest face hotshots super airplanes Another event has tried few contests met success Nov ice class airplane combination limited have Schnuerle-ported Perry ported en gines tuned pipes functioning retract able landing gear good feature about event provides event beginners some fliers will never great like compete pattern competition Another idea continues gain support handicap Novice event flight scores modified adding points fixed gear conventional engines/mufflers subtracting points functioning retractable landing gear spe cial engine porting tuned pipes An ob vious problem idea assess ment appropriate handicap points different features handicap system can fouled up judges either tougher generous anticipated Yet another idea would ban retractable landing gear special engine porting tuned pipes Novice pattern event entirely might drive down airplane size Novice event somewhat take advantage better power weight ratio using conven tional engine would also place Novice event graduate position need ing new airplane compete Advanced must ideas around country bear consideration have write NSRCA district vice president about can publicized several years have preaching newcomers fuel problems caused glow plug engine has running well starts having problems glow plug should sus pected bad plug can make engine seem lean rich adjusting needle valve may alleviate condi tion way detect plug problem remove battery clip engine idling listen speed change engine speed drops slight amount glow plug should replaced previous test usually suf ficient detect bad plug isnt fool proof CCRCC Fall Carnival near New Orleans Louisiana struggled through four rounds flying alter nately rich lean engine runs discover glow plug element mangled pushed against side chamber new glow plug made fuel problems go away Contest fliers vocal comes problems glow plugs cause bad engine run can spoil compe p CLUCK WORE TIMERSALL SIZE ENGINE MOUNTSPEACE PIPE MUFFLERSSYRINGE FUELERS SURGICAL TURINGSPECIAL ENGINE MGIJNTSCALUMET MUFFLERSPEN BLADDERS NEOPRENE TUNINGTAME MOIORTSMUFFIIT MUFFLERSFUEL TUNE FILLER SCALE INSTRUMENT KITSSPEED PUNSENUINE MANIFOLDSSTICKATARE AMA SUFETY PROP gRITSR/C STEEMANLE ROSE GEARMUFFLER EXTENSIURSENGINE CUVUS ENGINE TEST STUNSR/C MIME MOLO DOARSMACE CAM MUFFLERSFUEL SMUT OFF OULUE GLOW PLUG STARTERNYLON SCREUSCMICKEN STICASPROPELLERS BUTTERY CRURGERNYLON SPINNERSRAZOR OLMOESENGINE NT DRILL JIG tition flight During 1978 contest season heard complaints about de fective glow plugs other years put together Statements like Ive used Brand X plugs years now cant trust anymore very common Perhaps us save defective new plugs discover until have half dozen mail plug manu facturers demand refund replacement manufacturers will get message NSRCA District 6 vice president Earl Haury published caution Novem ber issue K Factor bears re peating articles discussing relative safety points current air craft large aircraft hazard ous aspect mentioned GASOLINE Spark ignition etigines fueled gas oline instead usual alcohol-based fuel gasoline everyday com modity common often overlook just dangerous can flash point minimum temperature flammable vapors will present -45 degrees F gasoline 52 de grees F methanol higher nitromethane Vapor pressure pres sure exerted upon closed container 20 degrees C gasoline four times methanol nearly 12 times nitromethane auto ignition tempera ture temperature material will ignite spontaneously gasoline about half alcohol What means very real probability fire exists crash definite possibility delayed explosion also present quart gasoline exploding pick up damaged model will definitely shorten modeling career life Merely transporting handling storing gasoline infinitely hazardois glow fuel Dont think white gas unleaded high low octane different gasoline demands extreme care handling Thanks Earl Next month plan get back de scriptions perform pattern maneuvers next maneuver description will Stall Turn also plan report couple new products Ron Van Putte 12 Connie Drive Shal imar FL 32579 RC Soaring/Pruss continued page 29 originator one-on-one competition cross-country racing club boasts R&D department off shoots have brought about new con struction techniques designs scribe has always felt Rubber Ducky name sailplane didnt justice engineering went re member club also lays claim Ed SbFebruary 1979 97 Shown below just sampling accessories make 4 8180 PIUN OUUsSU ENGINE MOUNTS WMUM FOLDS STEENUILE NOSE NOUNS SEND SIOO 25 paqe illustrated catalog refundable first order TATONE PRODUCTS CORP 1209 GENEVAAVENUE SAN FRANCISCO CA94 112