摘要:
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.
摘要:
A harmonic apparatus designed to affect the performance of waterborne vessels. The vibratory generator is tuned with respect to the fundamental frequency of the vessel at the onset of planning, the various wave patterns generated by the moving vessel and the kinematics of the vortex sheet. As the vessel moves through water, vibrational reactions occur that assist the performance of the vessel. The harmonic apparatus can be reconfigured to operate on several different modalities.
摘要:
A high-speed, multi-hull boat that includes at least three hulls (3, 4), and in which, with the boat being considered to be floating and stationary on a stretch of calm water (1), the cross sectional areas (Si) of the space (18) formed between two walls (19) of opposing hulls, the surface of the water (1) and the bottom face (21) of the deck (2) facing this water surface, decrease from the bow to the stern. According to the invention, with the boat being considered to be out of the water, the heights (H) of the hulls between the same horizontal reference (R) and the lowest part (B) of their bottoms, are greater for the outer hulls (4) than for the central hulls (3) in the same cross-sectional plane.
摘要:
A ship designed for use at high speed and heavy seas having a single long and slender hull with a narrow beam and a more or less vertical bow, whereby the front half of the hull has more or less vertical sides, minimal flare in the bow sections and towards the bow an increase in draught at its center line combined with a more or less similar increase of freeboard and whereby the aft end of the hull has a flat or slightly V-shaped bottom with one or more propellers and/or waterjets as propulsion means. In accordance with the invention the bow has a fillet radius of at least 1% of the beam.
摘要:
A multi-use recreational product fully assembled constitutes a toy that can be towed on water and on snow and in the air, and when airborne, the rider can detach the tow rope and use the product as a glider. The toy disassembled, separates a wing section from a fuselage or tail section. The wing section is independently usable as a wakeboard; longitudinally extending fins which provide stability in movement of the assembled product in water and air and easier lift-off into the latter, also aid in control of the wakeboard in water and on snow. The fuselage or tail section is independently usable as a surfboard or water ski, wakeboard, snowboard or kneeboard. As a surfboard, it would be inverted so that thin vertical fins on the wider tail end of its upper surface when used as the fuselage, would extend into the water. Control elements exist on the appropriate surfaces of the sections to enable rider steerage of the sections and/or assembled product.
摘要:
A mono boat hull power boat with extendable and retractable surface effects wings. The boat hull has wing cavities housing the wings inside the hull. At the front of wing cavity wing pivots are located, and at the rear of the wing cavities extending mechanisms are located, allowing for the pivotal extension and retraction of the wings in to the hull cavities.
摘要:
A boat hull has at least one generally transverse ventilation step formed in at least a part of its bottom planing surface open to the water. The step has a forward edge portion and a water flow interrupter is positioned to project downwardly from the hull forward of the forward edge of the step.
摘要:
A boat hull has an aft swept ventilated area in at least a part of its bottom planing surface. An aft swept water flow interrupter is positioned to project downwardly from the hull forward of the ventilated area. The aft swept flow interrupter has two generally angularly related legs or sections defining a 30° to 70° included angle, increase lift on the hull, reduces wetted surface area and improves the turning characteristics of the hull.
摘要:
A ship and associated methods of formation with vessels having connectable hulls. In an example embodiment, a method of operating a ship includes providing a plurality of vessels over water, each comprising at least two spaced-apart hull sections defining a cavity when the vessel is afloat. Each hull section on each vessel is configurable as a portion of a coupling mechanism with fore and aft portions of each hull section reduced in width relative to intermediate hull section portions. Pairs of hull section fore portions may be lapped with and connected to pairs of hull section aft portions on different vessels to form complete coupling mechanisms which connect vessels to one another. Accordingly, the plurality of vessels can form a single assembly and power can be transferred between vessels to move the vessels through water in a tandem arrangement.
摘要:
A wing-in-ground-effect craft (11) having a loaded canard forewing (13) and a main forward delta configuration wing (15) attached to fore (17) and mid (19) sections of a body (21) respectively. The body (21) is formed with an integral planing hull (23) for amphibious applications, extending rearward to a tail section (25) which incorporates a ducted fan (27), and a vertical stabilizer (29). Rudder (31) is located in the exhaust of the ducted fan (27) for steering the craft (11), and serves as a stator to reduce spiral induced in the airflow exiting the duct (27). The canard forewing (13) has about 12% of the area of the main wing (15), and has inner portions (35) having a dihedral configuration disposed at a first angle of inclination from the vertical of 68°, and outer portion (37) disposed at a first angle of inclination from the vertical of about 91°.