Abstract: The men's eight according to the invention has an elongated hull that ends in a pointed bow and a pointed stern. Given a total weight of 938 kg, the waterline is 17,211 mm±5%, preferably ±3% and most preferably ±2%. Given division into 15 segments of equal length and in the case of a total weight of 938 kg, particular values are also presented in table form for the respective cross-sectional area below the waterline WL, the respective circumference below the waterline WL, the respective width at the waterline WL, and the respective width ratio based on the middle segment 7, each having a tolerance of ±5%, preferably ±3% and most preferably ±2%. The women's eight according to the invention is designed with similar lines for a total weight of 858 kg.

Abstract: A shallow water boat is configured to provide increased stability and turning ability at high speeds. The shallow water boat has a hull including a hull bottom. The hull bottom includes a port raised tunnel and a starboard raised tunnel which can channel water from fore to aft. The hull bottom also includes a port slightly concave surface outboard the port raised tunnel and a starboard slightly concave surface outboard the starboard raised tunnel. The slightly concave surfaces trap air which would otherwise flow outward creating a laminar flow condition which increases stability and the turning ability at high speeds.

Abstract: A watercraft hull includes a lower portion, an upper portion, and a strake positioned between the lower portion and the upper portion. The lower portion may include a bow portion having a v-shape defined by a keel and sidewalls extending upwardly therefrom to the strake and an aft portion having a tunnel formed therein. The aft portion may be defined by a pair of opposing sidewalls extending downwardly from the strake to a bottom portion. The tunnel may be defined by a pair of opposing tunnel sidewalls that extend upwardly from the bottom portion to a tunnel top having a center rib. The lower portion may also include a medial portion that transitions the bow portion to the aft portion. The medial portion may have a vacuum chamber extending between and transitioning the keel of the bow portion to the tunnel formed in the aft portion.

Abstract: A hull (1) for a marine vessel (10) comprising an elongate body (2) that tapers outwardly from a foremost location, the bow (3), and tapers inwardly toward the aft (4) such that the aft (4) of the body (2) is significantly reduced in profile with respect to a point in the hull at which the inward taper commences.

Abstract: A watercraft hull includes a lower portion, an upper portion, and a strake positioned between the lower portion and the upper portion. The lower portion may include a bow portion having a v-shape defined by a keel and sidewalls extending upwardly therefrom to the strake and an aft portion having a tunnel formed therein. The aft portion may be defined by a pair of opposing sidewalls extending downwardly from the strake to a bottom portion. The tunnel may be defined by a pair of opposing tunnel sidewalls that extend upwardly from the bottom portion to a tunnel top having a center rib. The lower portion may also include a medial portion that transitions the bow portion to the aft portion. The medial portion may have a vacuum chamber extending between and transitioning the keel of the bow portion to the tunnel formed in the aft portion.

Abstract: A wave reducing and eliminating ship hull including a generally triangular hull having a pointed narrow bow portion and a stern portion wider than the bow portion, the hull including generally rectilinear diverging sides extending substantially from the bow to the stern. The hull further includes a draft adjacent the bow deeper than the draft adjacent the stern, and the bow portion of the hull is generally free of depending structures.

Abstract: Low drag underwater submerged lifting bodies which can be used as underwater displacement portions of a vessel whose main hull is at sea level are asymmetrical and have improved lift to drag ratios. The lifting bodies have outer surfaces whose shapes are defined in plan and elevation by generally parabolic curves which are different on opposite sides of the lifting bodies.

Abstract: A hull form is presented and dimensioned where the design parameters consist principally of the breadth of the hull at the waterline, taken at specific equal intervals along the length of the waterline. The waterline reference is that at which the vessel is intended to float in the loaded condition. The waterline breadths describe the entrance or bow of the vessel. The closing run or stem of the vessel is not specifically delineated as a feature of the entrance or related to it. The invention defines two parts of the vessel, the entrance and the run, as discrete segments, each having its own properties and advantages. The entrance of the vessel is concerned with wave-making and the creating of a wave front that opposes vessel forward motion. The invention describes a method of optimizing the entrance of a vessel, and modifying the entrance of an existing vessel to minimize wave-making characteristics.

Abstract: A transonic hull having a bow, a stern, a longitudinal length therebetween, side surfaces extending from the bow to outboard portions of the stern, a lower surface extending between the side surfaces, the transonic hull having a submerged volume with an approximately triangular shape in planview with apex adjacent the bow and a base adjacent the stern, and an approximately triangular shape in side view when in motion with a base adjacent the bow and an apex adjacent the stern.

Abstract: A hull configuration having a bow and a stern, for use in a single or multiple hull vessel. The hull configuration has a pair of cutting edges, each cutting edge sloping rearwardly, downwardly and in an outwardly lateral direction, from the bow. Each one of a pair of side edges, extends longitudinally rearwardly and laterally inwardly from an end of a respective one of the cutting edges and smoothly joins together proximal the stern. Each one of a pair of sidewalls extends generally upwardly from a respective one of the cutting edges and from a respective one of the rounded side edges. The sidewalls form a rounded V-shaped section from the point where the side edges meet, extending rearwardly to the stern. An underside includes a concave channel between the cutting edges and between the generally rounded side edges. The channel decreases in width towards the stern and terminates at the point at which the side edges meet.

Abstract: A hull form which operates in the speed ranges where both planing and wave making affect hull resistance is presented with a configuration which reduces wave drag and improves performance in very fast and ultra-faste speed ranges. The specific distribution of immersed cross-sectional area minimizes bow wave making and optimizes the closing wake. Bow wave impedes forward motion of a hull form. Stern closing wake pushes the hull forward and enhances the forward motion. The bow sections are designed so that they have a “hollow” entrance configuration which decreases the effort to spread the water and in turn diminishes the wave making as the hull pushes through the water. The stern sections are designed to be of such a configuration that as the water spread by the bow (34) now must close in around the stern (35) of the hull, the wave height is increased so that the closing wake exerts a forward thrust on the hull.

Abstract: A method for designing and constructing original hull designs, and the hulls produced by this method. Directed particularly at frame-based hulls, the method introduces a systemizes the design process so that both the design work and the construction work can be completed in less time. It is based on a Single Frame Curve template generated early in the process and then used to draw every one of the frames in the lines drawing. Later, a full-scale version of the template is used in lofting the lines drawing and in creating the physical frames themselves. It introduces consistency and goodness checks into the creation of original designs, funneling the designer's creativity into the production of a new boat of original design in a relatively short time, a new boat that is hydrodynamically smooth as a consequence of the interrelations imposed between and among the template-based frames.

Abstract: A modularized unmanned marine surface vehicle contains control section and propulsion section. The control section is composed of bow section, control cabin, probing module, communication module and conjunction module. The propulsion section contains an energy cabin and a power plant cabin. The conjunction module can be combined with the energy cabin as a complete unmanned marine surface vehicle. The probing module contains probing instruments and equipment. The propulsion section can be battery-powered, gasoline-powered or diesel-powered. The propulsion section can be equipped with a propeller, a water jet or a turbine jet propeller of high power or low power as the power source assembly.

Abstract: Low drag underwater submerged displacement hulls which can be used as independent vessels or as underwater displacement hull portions of a vessel whose main hull is at sea level are disclosed which have improved lift to drag ratios. The disclosed vessels have outer surfaces whose shapes are defined in plan and elevation by generally parabolic curves.