HOVERCRAFT WITHOUT LIFT FAN

摘要

A hovercraft, comprising a ship hull, and a ship power device; the ship hull consists of a main hull (1) and two sub-hulls (2); the bottom surfaces of the sub-hulls are lower than the bottom surface of the main hull; the two sub-hulls are symmetrically disposed side by side below the front part of the bottom surface of the main hull, and are separated from each other; the outer side surfaces of the sub-hulls and the outer side surface of the main hull are aligned with each other or become the same side surface; the aligned side surface or the same side surface extends under the bottom surfaces of the main hull and the sub-hulls, forming a main side wall (3); and the inner side surfaces of the sub-hulls extend under the bottom surfaces of the sub-hulls, forming sub side walls (4). When in navigation, the main side wall and the sub side walls are partially in the water, forming three independent forwardly opening lift spaces together with the bottom surfaces of the main hull and the sub-hulls respectively. The hovercraft requires no lift fans of the traditional hovercraft, and can effectively form a high pressure air cushion under the ship hull during navigation, thus having small navigation resistance, high propelling efficiency, and high navigation speed.