OS 120 4 stroke, 4 blade prop?
I am wanting to get the World Models P-47 thunderbolt and put my OS 120 surpass in it. I really want to do a 4 blade prop. What size should I go with? APC makes 14.5X11 and a 15.5X12. Will either one of these work? If not who makes another 4 blade that I can look into?