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post #1 of Old 10-18-2012 Thread Starter
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Cal 29 prop size

Im repowering from the original A-4 to a Beta 16. This requires a prop replacement as the diesel that turns at about the A-4 rpm. Can I use a 12 in dia. prop?

Ive assumed a 12 prop is the standard installation for these boats. The measured clearance to the hull from the shaft CL is 6 MWC and Gerrs Propeller Handbook want a blade tip clearance of at least 15% the prop diameter. That would mean an 11 diameter prop or less.

Is anyone out there having any problems with a 12 prop on their Cal 29?

Walt Elliott
Kingston WA
Puget Sound
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