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Old 01-12-2020, 03:24 PM   #5
cafesport
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City: Miami
Join Date: Jul 2013
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Three blades will be the most efficient and the probably require the largest diameter. Four and five blades, incrementally smaller diameter and smoother as well as less prone to cavitation at speed or slap while cruising.

Third reading Dave Gerr’s propeller handbook. I imagine there is a go to prop guru somewhere nearby who can also advise you if repair is not an option.
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