| 摘要 |
PURPOSE: To raise full speed of sailing by allowing a housing to have a lower generally horizontal torpedo portion surrounding a lower horizontal bore, and allowing the torpedo portion to have an outer surface profiles along horizontal cross-sections defining wedges with sharp leading tips forming a sharp leading edge for slicing through the water. CONSTITUTION: A lower horizontal torpedo portion 188 of a housing includes a lower zone 270 with outer surfaces profiles 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B, 9B, 10B along horizontal cross-sections. The lower zone defines wedges including each of leading tips, and the leadings defines a line 272 extending downwardly and backwardly at a specific angle relative to vertical. The lower horizontal torpedo portion 188 includes an upper zone 276 with outer surface profiles 11T, 12T, 13T, 14T, 15T, 16T, 17T along the horizontal cross-sections. The upper zone 276 defines wedges with sharp leading tips, and the sharp leading tips forms a sharp leading edge 278 for slicing through the water. |
