correct size of prop for Mcculloch 72hp and engine RPM

[PR Gyro Pilot]

I talked to several people that say that I should use a Tennesse prop 50-24 for a mac 72hp, but I have a few friends flying with 50-30. what would be the best prop size for that type of engine.

[pwongkit]

I used Tennesse prop 50-24 for my Mc 72HP :cool:
pwongkit

[gyromike]

You should have enough room to swing a 52"x24" Tennessee Prop, and get ~3500-3600 RPM max.