Radio Control Pylon Racing Bill Hager BY THE TIME read weather will probably taking turn better As Im writing Im listening weather report Its 200 below zero somewhere Minnesota 5-ft snowdrifts Michigan its going 50 below zero tonight Ohio As country being hit worst winter storm year still wonder moved south Well look bright side things have plenty building time live North some things Formula fliers have look forward year Formula NMPRA Championship Race going held Las Vegas sponsored again Circus Circus race will held October31 Novem ber 1 year qualify race must first NMPRA member youve got least following Qualify top 20% race district US divided seven race districts finish top 10 AMA Nationals Formula top five finishers Canadian Nationals past NMPRA Championship winner NMPRA officer race always competitive best attended year Most people make trip vacation Lots members bring family dont belong NMPRA would like join send $1300 annual dues Bill Hager 706 Glen Haven Dr Conroe TX 77302 will lots good races parts country season Ill start contest calender report soon let know clubs events will held received aletterfrom John Cheyer short time ago John has son Christopher started flying age of6 soloed month entered first contest year later Chris entered Tournament Champions Pattern meet Allentown PA age seven year later same contest Chris placed 11th out 17 entries Chris dad now starting race guys Northeast better sharpen up little guy going give run money contests summer past Ive asked hints helpful tips can pass column Ive poor response Surely some have ideas share helpful hint engine break Art Arro Ann Arbor MI proper breakin engine important factor regards performance life expectancy applies Formula though engines fitted during rework stage final mating moving parts can best achieved during proper break proper break mean running engine rpm range will operated under light load prevent excessive heat buildup aluminum-brass-chrome ABC metallurgy both popular Formula enginesK&B Supertigrerequires special break procedures properly mate piston/sleeve surfaces Also rotor seal conrod-to-crank/wrist pin fits must established fits best established actual operating temperatures obtained high nitro fuel slightly rich needle setting fine line between proper temperature excess temperature will ruin fine racing engine following break procedures have used successfully author also recom mended Clarence Lee initial break recommend several bench runs 50% nitro content fuel test prop Limit runs about two minutes duration use 9 x 6 maple prop cut 8-in 8/2 diameter engine should mount ed sturdy test stand run rich twocycle about 21000 use large 12oz tank quickly stop engine after about two minutes pinching off fuel line Dont pinch off pressure line let tank run dry since engine will quit excessively lean precious fits will lost sure check engine mounting screws well giow plug tightness between engine runs After several colts piston/sleeve fit will have loosened up engine may mount ed plane in-flight break Stick 50% nitro replace test prop regular racing prop Set engine off little rich side prepared shut down goes lean air Also fly out tank tendancy go lean blow plug cause permanent damage in-flight break step good time trim plane After flight two replace fuel standard racing setup put couple flights slightly leaning engine full-power race setting Limit practice flying high nitro 60% fuel shortens engine life expectancy After completing procedure can accomplished singie afternoon should have properly broken Formula engine ready maximum performance life racing circut Keep engine clean well lubricated between races should last long time See next month Bill Hager 706 Glen Haven Dr Conroe TX 77302 May 1981 39 topfinishersatthe firstannual North Dallas RC Club Pylon Races Lto R Bob Barrett 3rd Matt Smith 2nd Gary Heithold 1st Chris Cheyer starting compete Racing events age 8 started flying soloed age 61/2 entered first Pattern Contest 7/t Hell winners circle soon