| 摘要 |
<p>A fin box for a water craft including: a fin box body having an elongated slot open at a first surface of the fix box and extending to a closed base of the fin box; a peripheral flange extending outwardly from the slot and defining an area of the first surface around the slot; the peripheral flange having a second lower surface and a third upper surface both offset vertically from the first surface and extending laterally from the fin box body, the second lower surface and said third upper surface further comprising a left and right side, each said left and right side surfaces extending transversely from the body portion to peripheral extremities of said peripheral flange, wherein at least one surface of said peripheral flange forms a transverse angle of taper with an axial median vertical plane of the fin box body.</p> |
