| 摘要 |
PROBLEM TO BE SOLVED: To obtain a propulsion resistance reducing structure of a hull capable of significantly quickening a drive engine with same horsepower and significantly improving a fuel consumption ration by slightly floating the hull with an auxiliary blade to reduce the propulsion resistance during driving of the hull, and then greatly floating the hull obliquely to significantly reduce the propulsion resistance. SOLUTION: In this propulsion resistance reducing structure of the hull, a main auxiliary blade 15 is installed at a bottom end of a support plate 14 extending by a predetermined depth from a hull bottom 11 at a center of gravity in a lengthwise direction of a hull 10 or at a position within a certain distance range therefrom, and a sub auxiliary blade 17 is installed at a bottom end of a support plate 16 extending by a predetermined depth from the hull bottom at a cutwater position on the bow side or at a position within a certain distance range therefrom. The main and sub auxiliary blades 15, 17 are set to a predetermined angle of elevation, and the bow is floated at the time of high speed driving, so as to significantly reduce the propulsion resistance. COPYRIGHT: (C)2004,JPO
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