Boat hull

Claim 1

A boat hull having a longitudinal, forwardly-extending central axis, a vertical plane of symmetry in which the central axis lies, and theoretical base plane below the hull and normal to the plane of symmetry, said hull having a bow and stern, said hull comprising a pair of laterally spaced-apart sidewalls, a transom wall at the stern and a bottom wall, said walls being interconnected to form a fluid-tight construction, said bottom wall including a scoop segment, a dihedral segment, and a planar segment in that order from the bow, said segments merging into one another, and being defined by two paris of generally axiallyextending runner faces, defining said segments, a scoop face additionally defining the scoop segment, each pair of runner faces meeting at a respective runner edge and forming a respective upwardly-opening dihedral angle between themselves, the outermost member of each pair of runner faces intersecting a respective sidewall and the innermost member of each pair intersecting the other innermost member in the planar segment and dihedral segment, the innermost members being interconnected by the scoop face in the scoop segment, the said dihedral angles at the runner edges increasing in size in the scoop segment and dihedral segment as the runner edges extend from the bow toward the stern, whereby in the scoop segment a tapering scoop is formed between the scoop face and the innermost of the runner faces, the cross-section area of the scoop between the edges, the innermost members and the scoop face decreasing as the scoop extends from the bow toward the stern, the innermost runner faces intersecting to form a central dihedral angle in the dihedral segment, which central dihedral angle opens downwardly and has a central edge on the plane of symmetry, and the innermost runner faces being substantially co-planar in the planar segment, the runner edges extending from an upper elevation near the bow to a lower elevation in the dihedral segment.