Abstract: A hull design with a maximally narrowed lower hull comprised of a stepped inboard chine and a concave centerline section resulting in the center of buoyancy and center of gravity preferably being in the same longitudinal position. The narrow lower hull optimally reduces the wetted surface area required, thereby reducing power requirements, fuel costs, and increasing speed potential. Exemplary dimensions for a forty-five (45′) foot hull are disclosed. The hull has a much deeper transverse step (note FIG. 3) to more effectively exploit the potential advantages of internal chines and lifting strakes, which deeper transverse step effectively achieves a bi-modal hull form—displacement and planing. The hull form consistently achieves and maintains the flow separation needed to assure the low surface area needed for minimum planing resistance and minimum sea wave impact acceleration.