I have a 3 blade 14.5x19 aluminum prop on my 200 HP Mercury Blackmax. How do I determine the equivalent 4 blade prop? (I'm assuming a 14.5x19 3 blade prop is not equivalent to a 14.5x19 4 blade prop.)
No, not a bit of cavatation. It works like a charm. Only problem is if I need to get somewhere on the water quick like, 4 blade has low top end. Solution is to carry extra prop like a 19 or 21.