| 摘要 |
A keel structure for a yacht which includes a ballast weight and means extending transversely beneath the hull with respect to which the ballast weight is moveable. Preferably a loop type keel form on which the ballast weight is moveable is contemplated so as to enhance the righting moment for a given carried ballast weight and for a given sail loading as well as reducing leeway without the penalty of excess draft. |
