Futaba 6j-2.4 radio with futaba r2006gs receiver. I had an maxford mentor with 26cc gasser with the same setup and had no problem . I bought new all receiver and servos and the kill switch for my fokker runs fine first flite second flite can,t get off the ground because engine quits and switch lite blinks cutting engine. Could this be heat related we have been in the 90,s with high humidity . thanx for thinking Biplane Ray