RE: Heli engine for airplane use? Can I?
Found a heli guy who recently flew his OS91 heli engine on an airplane. He was turning 13,000rpm on a 12 X 8. Sounds like I'm in business! I'm going to order a prop drive washer and Pitts muffler designed for the OS91FX. The muffler dimensions match and I'm simply guessing that the drive washer will.