| 摘要 |
This disclosure relates to hulls for planing or semi-planing water craft. Th e hull (4) has an abruptly down-swept trailing edge portion (18) which, in the preferred embodiment, is in the for m of a flap (18) exuding across the full width of the transom of the hull and which projects beyond the level of an upswept portio n of the underside (14) of the hull by flap chord (Cf) representing only a small fraction of the length (L) of the hull (4). According to another aspect of the invention, a hull (4) having a lightly cambered nose portion (5, 10, 12) is also described.
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