RE: Just picked up a GP Big Stik 60! Engine Recommendations?
I don't understand the issue with clearance ... my Big Stick 40 is in EP and I have run a 14" prop without any real issues. There is a 1" clearance on that plane. So a 15" prop should be no issue on the Big Stick 60 ... However, most 91 2C engines are not very happy with a 15" prop. They run well with a 14x6 at the most.