| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a small or medium size hull form for reducing increase of resistance during traveling and reversing that is a disadvantage of a circular hull form, keeping stability of a course while keeping smooth turning motion by strong steering that is an advantage, and reducing the hull size to save material cost and construction cost, and to provide a large size barge used as a motive power part that can separate the vessel. <P>SOLUTION: The vessel comprises: an upper side shell 9 having a cylindrical shape; a lower side shell 10 having a hexagonal prism shape and being provided below the upper side shell 9; and a propeller 23 turnable in the horizontal direction and being provided on the bottom of the vessel at symmetrical positions about a hull center line connecting opposing dihedral angles of the lower side shell 10 as an axis of symmetry. A duct 17 opening at the lower part is provided over the entire length of a vessel bottom shell 12. Besides, skegs 18, 19, a fender 36, bow and stern balls 47, and the propeller 23 with nozzle are provided. A U-shaped recess part that can house the vessel is provided at the stern of the large size barge. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
