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Old 06-28-2011, 12:11 PM   #47 (permalink)
wyatt
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Hucho says a concavity that is 13% as deep as it is wide is the optimum for drag reduction. So for a boat tail end that is 8 inches tall and 30 inches wide, you would use the 8 inches since it's the minimum, and you would want the tail end to have a concavity of approximately 1 inch.
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