4 and 6 degree pitches are usually better suited for 3d. You want to get as close to something like a 9x9 or 10x10 for example. Not sure what diameter and pitch are best for a 60 but on something like Jet .50 I used a 9x9. Will take a long time to get up to speed but then it gives great speed.
Brian
ORIGINAL: azrcaddict
Hi I have an OS .61 on mine and the biggest problem I have is prop limitation. The motor will put out enough hp to go faster, but because of design I can only go so large on the prop.I am thinking of a higher pitch prop. I have a couple on order now. When I try them out I will let you know.I currently have a cut down 13x6 Right now it is just a guessing game. I also have a ''how fast'' that I just received so I will be able to make accurate test.
os: altitude here is 4600'