I used to fly a Midwest Aerostar 20 with an O.S. 20 RC, this was the old strap on muffler job back when all they realy had was RC or CL. The guys called it the weed wacker, because it was green and trimmed the grass at the end of the runway on every take-off. I put a new O.S. .25 ABC with bearings and it would almost go vertical. That was a heavy trainer and the newer engines are even better, so prop it right and it should fly great.