Watercraft hull with improved lift, planing speed range, and near maximum efficiency
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United States of America Patent
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Jan 26, 2016
Grant Date -
Apr 10, 2014
app pub date -
Oct 4, 2013
filing date -
Oct 8, 2012
priority date (Note) -
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Abstract
A hull for a planing type watercraft has a front lift surface, a high lift surface, and a back planing surface. The high lift surface is adjacent a rockered keel area and between the front lift surface and the back planing surface. The center of dynamic lift on the high lift surface is at or in front of a point which is 15% of the hull length behind a total center of gravity of the hull under loading. At least the back one third of the high lift surface is cambered, and a beam of the high lift surface is greater than two thirds of the maximum width of the hull. The average camber of the front lift surface, the high lift surface, and the back planing surface together is less than or equal to zero.
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