| 摘要 |
A boat hull (10) having a generally monohull section, a forward keel portion being flattened to form a plank-like planing surface (15), main bodies of the sponsons (17) which are configured with air dams or spray walls, the sponsons (17) defining the outer wall of side tunnels, the hull form inboard of the side tunnels providing side planing surfaces stepping down transversely to the keel planing surface (15). Proceeding further aft there illustrates the hull (10) with the rear portion of the sponsons (17) and aft sections of their planing surfaces, the front and rear portions of the sponsons (17) being connected by the aforementioned air dam or spray walls, again bounding the side tunnels having the side planks or planing surfaces disposed at their inner edge. A step in the keel is provided to define a tunnel (25) disposed between two downwardly depending side walls. At section across the afterplanes an integrated undersurface having an outboard motor insertion space with a continuation of the recess upper surface providing the lateral boundary of the space.
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