IIOGeorgeMMyers QjjIJ WITH THIS column break long-stand ing rule own invention wit will now answer some letters col umn change brought about combination factors First up point have answering letters directly can imagine takes bit time After answering personal letter have frequently used answer springboard launch general epistle same subject toward long-suf fering readers double ef fort said above takes time second reason breaking rule case have received letter charming sketch wished share au thors permission course third important reason am late column floating along thinking least column ahead phone call Carl Wheeley arrived asking intend send us column month r some personal history few kind words about column Paul D Spreirregen Washington DC launched some questions will quote answer time Q i blem servo chatter isnt much notice other members club dont seem have Ive tried cleaning pot alcohol doesnt help Any suggestions Bill Cannon introduced Super Mini system told deliberately built little dither system done because servos have far less thrust accustomed concerned friction hinges pushrods might interfere centering controls dither chatter tradi tional solution kind control problem no reason doubt explanation Now could change damping resistor PC board everything small job nuisance after got rid dither very good possibility servos drive toward neutral would come weaker result wouldnt come way back con trol parlance effect known droop offset Since system works well Id suggest use World Engines Expert servos jitter bit too people have used years problems worthwhile maintenance procedure beyond cleaning raise contact fingers wiper about 1/64 inch see jitter diminishes does great Id say forget sons Cannon Super Mini system does same thing flies great Q Another question have concerns control sticks transmit ter black plastic adjustment arm Fig 1 has pushed almost full up order have good neutral position stick related servo middle position seems logical Any advice case works leave alone Ideally should cen tered nothing ideal Production tolerances pot compo nents PC board require adjustment made someplace Mr Dunham put adjustment out can see performance important fundamen tal principles engineering Never change working system Maintain sure Keep clean well lubricated dont change am now quoting second let ter Paul Q recently bought ACE 3-chan nel block kit will build e instructions say suitable positive-pulse systems question Lr compatible Cannon sys tems answer question qualified Yes Both ACE Cannon Citizenship Pro-line 3-pin Deans Connectors use different ways must very careful Fig 2 shows what mean own systems several manufac turers use same type plugs always chance some thing will get connected backwards resulting damage PC board com ponents possibility batteries can get charged back wards happens turn system buy new qualification Make very sure plugs wired ve charger change plugs necessary will no mistakes next letter comes editor himself Q ve always felt many people dont have adequate money RC Ive always made enough get years behind crowd getting proportional bad results put out enstock used same radio years trouble Batteries un doing Ive gunshy ever since kno ws read ers have learn hard way because arent experienced fliers clubs nearby learn Such people will buy battery cycler depends relationship discharge time new time great system purchased new used hes out luck would simply like know can live purchased system recourse additional equipment like expanded-scale voltme ters field-strength meters battery cyclers does keep track status batteries complicated question Right out front lets understand can buy new RC system expect work two three years attention treat right means properly mounted engines balanced rotating parts adequate foam rubber surrounding receiver bat tery proper mounting servos structurally sound airplane prop erly installed control surfaces pushrods vibration worst enemy kept under control dont crash Batterylife can assessed ob serving front panel meter de liberately run system down home recording time takes ac tions servos exercise will probably run slower slow er finally run end travel stay batteries exhausted Once see symptoms youll recognize Follow man ufacturers charging instructions re charge once month whether use system first month make easy remember Finally once year beginning third year started new 14 Model Aviation Fig 2 ConflOCtiom Deans Plug system ann tlrSt year used take batterY packs apart point can examine wires breaks soldered connections point exit plastic box Also look powder battery seal area find white powder cells getting old can probably used Watch find coffee stain 3unk cells iminediate ly limited experience coffee stain means cells cant used safely flashlight Keep letters coming folks George Myers 70 FroeliCh Farm Rd HicksvWe NY 11801 *1 3 IN ACEC.WONOLD 24-2 SIN~LPJLSE SICzihLiJL&E SIlAL 2*-46 VLC.VOLTS48 VW VOLTZ448 VTICVOLTS May 1978 15
Edition: Model Aviation - 1978/05
Page Numbers: 14, 15
IIOGeorgeMMyers QjjIJ WITH THIS column break long-stand ing rule own invention wit will now answer some letters col umn change brought about combination factors First up point have answering letters directly can imagine takes bit time After answering personal letter have frequently used answer springboard launch general epistle same subject toward long-suf fering readers double ef fort said above takes time second reason breaking rule case have received letter charming sketch wished share au thors permission course third important reason am late column floating along thinking least column ahead phone call Carl Wheeley arrived asking intend send us column month r some personal history few kind words about column Paul D Spreirregen Washington DC launched some questions will quote answer time Q i blem servo chatter isnt much notice other members club dont seem have Ive tried cleaning pot alcohol doesnt help Any suggestions Bill Cannon introduced Super Mini system told deliberately built little dither system done because servos have far less thrust accustomed concerned friction hinges pushrods might interfere centering controls dither chatter tradi tional solution kind control problem no reason doubt explanation Now could change damping resistor PC board everything small job nuisance after got rid dither very good possibility servos drive toward neutral would come weaker result wouldnt come way back con trol parlance effect known droop offset Since system works well Id suggest use World Engines Expert servos jitter bit too people have used years problems worthwhile maintenance procedure beyond cleaning raise contact fingers wiper about 1/64 inch see jitter diminishes does great Id say forget sons Cannon Super Mini system does same thing flies great Q Another question have concerns control sticks transmit ter black plastic adjustment arm Fig 1 has pushed almost full up order have good neutral position stick related servo middle position seems logical Any advice case works leave alone Ideally should cen tered nothing ideal Production tolerances pot compo nents PC board require adjustment made someplace Mr Dunham put adjustment out can see performance important fundamen tal principles engineering Never change working system Maintain sure Keep clean well lubricated dont change am now quoting second let ter Paul Q recently bought ACE 3-chan nel block kit will build e instructions say suitable positive-pulse systems question Lr compatible Cannon sys tems answer question qualified Yes Both ACE Cannon Citizenship Pro-line 3-pin Deans Connectors use different ways must very careful Fig 2 shows what mean own systems several manufac turers use same type plugs always chance some thing will get connected backwards resulting damage PC board com ponents possibility batteries can get charged back wards happens turn system buy new qualification Make very sure plugs wired ve charger change plugs necessary will no mistakes next letter comes editor himself Q ve always felt many people dont have adequate money RC Ive always made enough get years behind crowd getting proportional bad results put out enstock used same radio years trouble Batteries un doing Ive gunshy ever since kno ws read ers have learn hard way because arent experienced fliers clubs nearby learn Such people will buy battery cycler depends relationship discharge time new time great system purchased new used hes out luck would simply like know can live purchased system recourse additional equipment like expanded-scale voltme ters field-strength meters battery cyclers does keep track status batteries complicated question Right out front lets understand can buy new RC system expect work two three years attention treat right means properly mounted engines balanced rotating parts adequate foam rubber surrounding receiver bat tery proper mounting servos structurally sound airplane prop erly installed control surfaces pushrods vibration worst enemy kept under control dont crash Batterylife can assessed ob serving front panel meter de liberately run system down home recording time takes ac tions servos exercise will probably run slower slow er finally run end travel stay batteries exhausted Once see symptoms youll recognize Follow man ufacturers charging instructions re charge once month whether use system first month make easy remember Finally once year beginning third year started new 14 Model Aviation Fig 2 ConflOCtiom Deans Plug system ann tlrSt year used take batterY packs apart point can examine wires breaks soldered connections point exit plastic box Also look powder battery seal area find white powder cells getting old can probably used Watch find coffee stain 3unk cells iminediate ly limited experience coffee stain means cells cant used safely flashlight Keep letters coming folks George Myers 70 FroeliCh Farm Rd HicksvWe NY 11801 *1 3 IN ACEC.WONOLD 24-2 SIN~LPJLSE SICzihLiJL&E SIlAL 2*-46 VLC.VOLTS48 VW VOLTZ448 VTICVOLTS May 1978 15