Patent ID: 7201111

Claim:
A boat hull comprising: a hull body having a lower surface that includes a sequence of groups, each including one or more downward-facing sections; the sequence including a lowermost group and one or more supplemental groups above the lowermost group; the lower surface being shaped so that, in a first speed range, an initial one of the supplemental groups is the uppermost group contacting or below a water surface, and, in a series of successively higher speed ranges, successively lower groups are each the uppermost group contacting or below the water surface, the lowermost group being the uppermost group contacting or below the water surface in the highest of the series of speed ranges; the lower surface further including: for each supplemental group in a set of one or more of the supplemental groups, a respective outward facing transition section between each downward-facing section in the group and an adjacent downward-facing section in the group's next lower group, a respective outward facing transition section; and for at least one supplemental group in the set, a respective spray sheet breaking structure between the respective transition section of each downward-facing section in the group and the adjacent downward-facing section, each spray sheet breaking structure being capable of breaking a spray sheet climbing up the adjacent downward-facing section; in one of the series of speed ranges, the boat hull's trim angle being between about 3.0° and about 6.0°.