A hull for ships or boats comprised of two elongated demi-hulls integrally joined together generally along the centerline of the hull whereby each of the demi-hulls has a keel disposed along the length thereof on either side of the centerline of the hull. The keels extend from a point adjacent the bow of the hull downwardly and outwardly along the length thereof to a point intermediate of the hull from where the keels extend upwardly and outwardly to a point adjacent the stern of the hull. The keels and the demi-hulls are in continual diverging orientation with respect to each other throughout substantially the length of the hull, providing the hull with a generally inverted V-shaped diverging configuration along the bottom thereof.
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