| 摘要 |
PCT No. PCT/FI92/00318 Sec. 371 Date May 25, 1994 Sec. 102(e) Date May 25, 1994 PCT Filed Nov. 25, 1992 PCT Pub. No. WO93/11039 PCT Pub. Date Jun. 10, 1993.A piece of hull of a boat, vessel or other construction designed to travel over water, which piece is attached with devices to the rest of the hull in a manner that allows the pieces of hull to move relative to each other. The piece of hull is located partly or in its entirety in the bow half of the hull combination and includes at least an engine, a power transmission mechanism and a propeller or an impeller. The piece of hull according to the invention aims at minimizing as many of the negative features of boats provided with an engine as possible, such as the noise and vibrations caused by the engine, power transmission mechanism, and propeller, the shocks and violent movements caused by the action of the waves, the overturning effect of the headwind and the waves, frictional resistance, uncomfortable travelling position at low speeds, high threshold of planing, and poor steerability at low speeds. The invention has a minimizing effect on the negative features through its construction, location, and operation. The boat is steered either by a rudder or by a steering device located in the piece of hull. The piece of hull can be provided with trim planes.
|
