Patent ID: 6666160
Filing Date: 2003-12-23
Classification: B63B

Abstract:
A hydroplaning boat hull comprising:a forward portion; an aft portion; a single keel line extending fore and aft and lying in a single vertical plane of symmetry; at least one midship step separating the forward and aft portions; a single forward planing surface extending transversely immediately forward of the midship step and having a nominal forward angle of attack; an aft planing surface portion extending transversely and forward of an aft edge of the hull and having a nominal aft angle of attack; said nominal forward and aft angles of attack being measured in the plane of symmetry between the hull and a datum line that extends fore and aft and passes through lowest points of the forward and aft portions, respectively; in which: the hull is a V-bottom monohull; both the aft and forward portions are individually twisted, each with a deadrise angle at a keel line that increases from a respective leading edge forward; the nominal forward angle of attack lies in the range 3.1-6.5 degrees; and when the hull is moving at least at a minimum planing speed, the forward and aft planing surfaces constitute two separated wetted surfaces.