Hybrid water vessels

Abstract

A hybrid high performance water vessel consists of two hulls: an upper hull with a pair of main fluid-lifting-plane means (called mainfoils thereafter), for providing hydrodynamic lifting force at high speed; and a torpedo shaped streamlined sub-hull disposed beneath the water line, for providing the majority of flotation. Along the water line is a knife-like slender hull called mainstrut that pierces through water surface to minimize the crucial wave-making resistance. The mainfoils are located close to one end section of the vessel, and the sub-hull is placed at the other end section of the vessel, so that the center of hydrodynamic lifting force of the mainfoils and the center of buoyancy of the water vessel is offset substantially along the longitudinal axis of the vessel system. It enables the water vessel of present invention to have a "Hull Inclination" capability that improves the performances of said water vessels. At high speed, the vessel of present invention will incline in a longitudinal direction such that the sub-hull submerges into water and the upper hull is lifted and held above the surface of water. The mainfoils also provide rolling control and substantial pitching control at high speed. When operating in a shallow or an unfamiliar water way with low speed, said vessel will incline longitudinally in an opposite direction, such that the sub-hull is raised up and close to the water surface for reducing the draught.

Dependencies are inferred from the claim text.