I was playing with my gas/glow us 25cc that is going on a Sig 1/4 scale j-3 cup. 109" span. what would be a good prop for this engine on this plane... I was testing the engine with a 16x8 and I was going to go out and get a 18x6 to see if I like it. but before I put out the money I though I would ask you all what you thing about it.

Paul