Shallow draft propeller pocket

In a propeller driven watercraft having a hull including a bow, a stern, a longitudinal axis and a keel, the improvement comprising an elongated water receiving flow control pocket defined in the hull and intersecting the stern, said pocket including an entrance edge transversely disposed to the hull axis, an upper planar surface extending from said entrance edge obliquely upward toward said stern, said upper surface having lateral edges converging in the direction of said stern, planar lateral surfaces each having a lower edge intersecting said hull and an upper edge intersecting said upper surface defining said upper surface lateral edges, said lateral surfaces each converging upwardly and of a generally triangular configuration each having an apex intersecting said entrance edge and a base intersecting said stern, the transverse dimension of said entrance edge being slightly greater than the transverse dimension between the intersection of said lateral surfaces and said hull at said stern, a planar deflector surface intersecting said upper surface, stern, and said lateral surfaces, said deflector surface being slightly obliquely related to the horizontal extending downwardly from its intersection with said upper surface toward said stern, and a planar transition surface extending obliquely forward and downward of said entrance edge intersecting said entrance edge throughout its length and intersecting said hull and keel, said transition surface having a forward edge having a transverse width less than the transverse width of said pocket entrance edge.