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post #1749 of Old 10-20-2011
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Join Date: Mar 2008
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Paulo -

In a recent post, you gave two different definitions of prismatic coefficient - one was not correct.

This one is incorrect - this one is the definition of block coefficient.

Prismatic Coefficient is a mathematical measurement of the relative shape of the bow and stern of the boat. It displays the ratio of the underwater volume of the hull relative to a rectangular block.
And this is the correct one:

We express the "full hull" property by the prismatic coefficient, which is the ratio of volume displaced to the product of waterline length and maximum cross-sectional area.
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