Ventilated flow interrupter stepped hull
AssigneeNavatek, Ltd.
InventorsSteven Loui, Scott Yamashita, Mealani Parish
Life of this patent
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Abstract
A boat hull has at least one generally transverse ventilation step formed in at least a part of its bottom planing surface open to the water. The step has a forward edge portion and a water flow interrupter is positioned to project downwardly from the hull forward of the forward edge of the step.
Claims18
A watercraft hull having at least one ventilation step formed in at least a part of its bottom planing surface facing the water;
- said step having a forward edge portion and means for forming a water flow interrupter projecting downwardly from the hull forward of said forward edge of the step.
A watercraft hull having a bottom surface for planing on water, said bottom surface having at least one ventilation step formed therein, said ventilation step comprising a recessed cavity in the hull bottom opening towards the water and a forward leading edge portion joining the hull bottom;
- and water flow interrupter means projecting downwardly from the hull forward of said forward edge of the step for increasing the separation of water from the hull at and aft of said step thereby increasing the unwetted surface area of the hull bottom during operation of the watercraft.
Dependencies are inferred from the claim text.