Enya .19
Heres mine before i converted it to electric. I used a old Enya .19. with no pipe. flew it once and scared the _hit out of some folks down where i fly. It was plenty fast for me but to loud for the neighbors. Im installing a modified car motor on it now so it wont sound to fast and scary! I dont think ill see the climb rate i had but it just another try it and see how it works and go from there.
Dave G