Patent ID: 8166903

Claim:
An apparatus comprising a double-wedge-shaped adjunct for a marine hull, said hull having a rigid V-angular hull bottom that is characterized by a first deadrise angle, a hull bottom length, and a hull bottom width, said adjunct having a V-angular upper adjunct surface and a V-angular lower adjunct surface, said upper adjunct surface being characterized by the first said deadrise angle, said lower adjunct surface being characterized by a second said deadrise angle, said adjunct being made entirely of a rigid and noncompressible material and being characterized by a shape capable of resisting deformation, said upper adjunct surface being conformal with said hull bottom to maintain continuous flush attachment of said adjunct underneath at least a portion of said hull bottom whereby said adjunct is coextensive with at least approximately half said hull bottom length and at least in part is coextensive with approximately the entire said hull width for at least approximately half said hull bottom length, said hull bottom being changed by said flush attachment so as to be characterized by the second said deadrise angle, the second said deadrise angle differing from the first said deadrise angle and thereby imparting a substantially different hydrodynamic character.