| 摘要 |
A shaped hull with a fixed angle keel with respect to the hull that when heeled, orients the keel to an angle of attack substantially related to the heel angle. The angle of attack being sufficient to create on the keel a lateral force substantially equal and opposite to the lateral force derived from the wind. The submerged portion of the hull, however, remains symmetrical and oriented parallel to the course sail as is its associated drag contribution vector. Thereby reducing or substantially eliminating the lateral force generated by the hull and the associated drag contribution. The movement of the shaped hull induces a lateral force on the keel without generating a lateral force and its associated drag on the hull, thus providing a sailboat with reduced drag without resorting to the prior art methods and their associated disadvantages.
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