Numbers

[McGillicuddy]

Sorry sidelock,
Didn't mean to confuse the issue. You could use the 15p but you'd probably wind it a few hundred rpm higher than you desire. Give you a heck of a hole-shot though. Just trying to show the props discussed are available for decent prices.

I'd try a 17p in any of those. Its very possible that you may gain or lose 100 rpm or more from prop to prop. Regardless, you're looking in the right direction.

You're right - I think the general convention is that you drop and inch of pitch going to a 4 blade. But a bow-lifting prop is usually harder to turn than a stern-lifting design, so that may be a wash...