FIN DEVICE AND CRAFT
PROBLEM TO BE SOLVED: To provide a fin device and a craft, which can achieve energy saving of the craft by improving propulsion efficiency of a slow-speed zone except a bilge vortex.SOLUTION: A fin device 2, which is arranged in a hull provided with a planar side flat 11 formed in a craft length dir...
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Format: | Patent |
Sprache: | eng ; jpn |
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