FREE FLIGHT OLD-TIMERS 411 MY BRIEF PARAGRAPH September issue ignition-coil polarity sparked some response nice get letters find out people out reading stuff Jack L Boone wrote described himself retired electrical engineer used design automobile test equipment absolutely correct indicate 20% 40% increase performance observing correct polarity coil Jack says automotive coils marked polarity Jack will happy correspond anyone wants discuss ignition systems address 114 Conrad Ct Mukwonago WI 53149 Now gets interesting Another well-qualified gentleman MS Electrical Engineering Floyd Carter says battery-voltmeter test described September column will work identify primary terminal connected high-voltage winding determine polarity difference minimal terms coil outputFloyd says its approximately 2% 20% 40% claimed goes say Theres very good reason coils polarity marked simply makes no measurable difference want communicate Floyds address 2029 Crist Drive Los Altos CA 94024 Well now James Dean said Rebel Without Cause have two conflicting statements experts says difference insignificant practical purposes other says indicated significant gain true What Yell help asked Jim Alaback added some original material item passed newsletter newsletter am sorry didnt credit Orbiter newsletter Jim column unclear originated piece Jim credits Bob Layboume original authority article Ignition Manufacturers Institute Jim says everyone right sense true Floyd Carter says little difference coil way battery hooked up makes significant difference however sparkplug spark plug will require less voltage fire polarity coil correct requires less voltage fire high-temperature center electrode cooler outer polarity reversed Jim continues seems analogous vacuum-tube technology negative plate heated expedite release electrons positive plate Jim Alaback OldTimer columnist Flying Models magazine does great job envy knowledge history Onward through fog last column wrote about HandLaunched Gliders Bob Larsh has list OT HLGs has available $125 will get list sample plan plans cost between 50 cents $125 opinion competitive gliders Hervat Huguelet designs Casanos Zoomer Bob has finished sixth revision National Free Flight Society NFFS Nostalgia rules list eligible gas models will cost $3 plus 64 cents stamps $3 two stamps $364 whichever comes first NFFS Nostalgia events cover years Society Antique Modelers SAM events not1943 through 1956 rules eligible engines complex highly suggest study booklet closely intend compete Bobs address 45 South Whitcomb Aye Indianapolis IN 46241 think OFB Old Flying Buddy Walt Rozelle will forgive share part recent letters Like us sometimes goes contest out-of-practice tries fly out-of-trim models demolished excellent-flying Galbreath CS-powered Astrostar because didnt start timer launch went way up came way over top went way downstraight going incredible speed Hank Nystrom standing nearby commented Good wing construction didnt flutter bit Thanks Hank Later asked Hank check engine run A/B Pilfered Pearl engine quit Hank said 4276 seconds Thanks again Hank model just dot sky thought would good time get some practice Walston retrieval system turned receiver discovered lost charge Later found have two bad cells battery pack model found discovered after fueling bladder instead running fuel line through cutoff mounted engine lug ran line through other hole lug ary1997 145 Bob Langdon San Diego CA Jim Bohash Wakefield Taft Bohash flew version US team 1939 Mikkelson photo SAM treasurer Larry Clark launches O&R 23-powered Marsden design Texaco event Taft Mikkelson photo
