| 摘要 |
<p>A sailboat 10 having a novel hull 16 shape, a fixed, shallow keel 18, dual rudders 24, and retractable, shallow dagger boards 22 for sailing in shallow or shoal water is provided. The combination of features allows the boat to achieve performance sailing at all points of wind, and in both deep and shallow water. The hull 16 preferably has a hydrodynamic shape which provides lift and lateral resistance to the hull when sailing. The keel 18 is preferably shallow so that the boat may be sailed in shallow water and even beached. The draft of the keel is preferably related to the length of the hull measured along the waterline. In a preferred embodiment, there is 1 inch of draft for every 1 foot of waterline. The boat may also preferably include a set of retractable dagger boards 22 located on opposite sides of the keel. A dagger board may be extended on the leeward side of the boat when the wind exceeds about 15 knots, in order to help prevent side slippage or leeway. In a preferred embodiment, the draft of the dagger board does not exceed that of the shallow keel so as to not increase the overall draft. Dual rudders may also be provided to help prevent leeway. The dual rudders 24 are preferably sized so as to not increase the overall draft of the sailboat.</p> |
