Abstract:
A modified V-hull boat has a keel having a horizontal cross-sectional profile of an inverted foil. The leading edge of the keel is a sharp point and the front region of the keel tapers outward along the length of the keel until it reaches its widest point. The widest point is aligned with the center of gravity of the hull. The trailing edge is a rounded blunt edge. The aft region of the keel is substantially shorter in length than the front region of the keel.
Abstract:
A watersports boat includes a hull having an underside that defines a running surface that contacts water when the hull moves therein. The running surface includes a planing mode trailing edge and a pre-planing mode trailing edge. An aft running surface section of the hull includes port and starboard recesses that extend from a respective step at a forward end thereof aft to a respective aft edge thereof. The steps form the planing mode trailing edge where water disengages from the aft corners of the aft running surface section when the boat travels in planing mode and the aft edge of the recesses form the pre-planing mode trailing edge where water disengages from the aft corners of the aft running surface section when the boat travels in pre-planing mode.
Abstract:
Pontoon structure for a boat includes an elongated pontoon with a bottom forming a water entrapment channel between a front end portion and a rear end portion of the pontoon, the bottom configuration causing the pontoon and the supported boat body to quickly rise above the water surface and plane.
Abstract:
The present invention comprises dynamically operative keel systems and methods of enhancing a marine vessel's directional control, linear tracking, and turn holding, among other benefits. Hull undersurface facets, laterally symmetrically configured and disposed in laterally symmetrical pairs, extend longitudinally for varying extents establish longitudinally extending recesses and/or voids of varying cross-sections and/or depths that channel water flow and/or pressure. The facets generally include longitudinally extending laterally outermost, laterally innermost, and optional (in some embodiments), intermediate faces that demarcate the voids and/or recesses. The faces provide keel-simulating effects when the vessel is running on plane and travelling linearly or turning, and variously encounters uneven water surfaces, uneven and/or laterally/diagonally directed water surface pressures and/or currents, and/or laterally/diagonally directed winds.
Abstract:
New configurations of boards and paddles are disclosed that reduce drag and thereby increase the overall speed with which the boards and paddles can navigate through water. Such configurations advantageously reduce the amount of work required to propel the boards and paddles through the water.
Abstract:
A shallow draft boat having a boat hull that allows for stability, maneuverability, and speed while needing only inches of draft. The hull generally includes a ski, a bottom shell, a left and right chine and a bow wrapper.
Abstract:
A system for rapid, secure transport of cargo by sea includes a monohull fast ship and an arrangement for loading and unloading cargo through an opening in the stern of the ship and along a driving surface of a cargo carrying deck of the ship. The arrangement includes a self-propelled, automatically guided vehicle for carrying cargo to be transported during loading and unloading of the ship and a self-contained security scanning system on the vehicle for maintaining control and surveillance of cargo in transit on the vehicle. The ship includes a reader grid of ship communication system on the cargo carrying deck to which continued control and surveillance of the cargo can be handed off from the vehicle scanning system.
Abstract:
An improved water tight, chambered planing pontoon assembly incorporates a hollow shell with a cross sectional shape in the form of an upper portion and lower portion. The upper portion of the shape is generally semi-cylindrical extending downward and terminates with opposing chines extending the full length of the tube. The lower portion of the shape is formed by equal and opposing planing surfaces which extend upward at acute angles from a vertical center line, then turn outward, perpendicular to the vertical center line, meeting at the chines. The tube terminates on the bow end with an elongate semi-cone and on the opposite end with a water tight bulkhead. The upper and lower portions of the tube are formed of one homogeneous sheet of metal. The semi-cone with opposing chine portions is formed of one homogeneous sheet of metal.
Abstract:
A pontoon with an improved running surface and methods for construction the same are provided. The pontoon comprises an interior concave main running surface formed along the longitudinal centerline of the pontoon which is bounded by two sponsons, which in turn are bounded by two distal concave surfaces, or integrated lifting strakes. The associated methods provide a process for retrofitting prior art pontoons or constructing the pontoon to avoid the need for welds below the waterline of the pontoon. The pontoon provides improved pontoon boat performance by maximizing lift and minimizing leakage. The pontoon also reduces construction costs by lowering the number of welds required to form a pontoon with lifting strakes.
Abstract:
An improved planing hull which incorporates a vee-bow (1) with outboard chines (2) designed to trap air and water between said chines. As the chines (2) extend aft they become wider and deeper (3) in the water. The vee-bow (1) ensures comfort in a seaway by deflecting waves down and outward and prohibits the bow from being buried in a wave. The outboard chines (2) can house engines and waterjets while providing buoyancy aft to match the displacement of the machinery. The chines (2) can be designed to cancel each other's wake, reducing drag and increasing lift on the hull. The resulting vessel can have much greater beam and interior accommodation with the same displacement as a typical planing boat. The hybrid hull has improved wave handling, significantly improved transverse stability, a smoother ride, and notably less draft over convention vee-hull boats.