HIGH SPEED BOAT HAVING UNSINKABLE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To prevent resistance of waves and oscillation of the left and right directions and to guarantee a stable high speed navigation by mounting a floating body on internal surface of a hull, providing a conical wave projecting body projecting forward on the bow and further providing a pair of projected strips for stabilization along the longitudinal direction of the hull at the outside of the bottom. SOLUTION: A water jet propulsion boat is provided with a water jet injection nozzle 4 at the stem and propulsion force is obtained by jetting water backward by driving of a driving machine 7 of a pump 6 provided on a suction duct 5. In this case, a roughly conical wave projecting body 2 is provided by being projected forward from the front end of the hull 1 and a pair of projected lines 3 for stabilization are provided in the longitudinal direction of the hull 1 at the outside of the bottom. The hull 1 is constituted into a round shape in cross section, a floating body which is constituted by a light synthetic resin material is arranged on the internal surface and a plumb bob body 10 is mounted on the bottom part. The center of gravity of the hull 1 to which the driving machine 7 of the pump 6 is added is located on the lower side of the center of a hull circle.