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7168381 |
Vessel hull and method for cruising at a high Froude number
In one aspect of the invention, a vessel has a liquid-plane greater than one meter 2 /(metric ton) 2/3 and includes a hull having a total length and a plurality of hull portions each having a...
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7055446 |
High-Froude hull ship
A large-waterplane-area ship operable to efficiently operate at a high-Froude velocity. In one embodiment of the invention, a large-waterplane-area ship includes a hull structure having a plurality...
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6964240 |
Hull for high speed water craft
The application relates to water craft hulls having improved hydrodynamic stability. A hull ( 1 ) is claimed in which the center of gravity (C g ) is substantially vertically aligned with the...
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6216622 |
Boat hull with center V-hull and sponsons
A high performance boat hull structure is provided which combines a V-hull bottom portion 12 with mid hull sponsons 31 and 33 which form longitudinal tunnels with adjacent structures. The mid hull...
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5832856 |
Monohull fast ship with improved loading mechanism
The invention is a monohull fast ship. The ship includes a hull producing a high pressure area at a bottom portion of a stern which rises from a point of maximum depth forward of a longitudinal...
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5813358 |
Surface-piercing surface effect marine craft
A marine or naval craft having a triple catamaran-type hull (3, 3, 4) from the bottom of which project three respective ventral fins (6, 6, 7) provided with propulsion and control means (14, 17,...
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5711239 |
Propeller configuration for sinusoidal waterline ships
A ship of a displacement type with a pointed bow and a transom stern, a longitudinal length of L, and defining a base plane and a design waterline plane, the ship comprising: approximately...
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5694877 |
Ship docking vessel
An improved ship docking vessel is provided that has a substantially flat, elliptical bottom having a large beam-to-length ratio to provide a shallow draft. In addition, the vessel of the present...
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5325803 |
Icebreaking ship
For icebraking ships whose forward quarter is designed like a pontoon with an underside rising obliquely forward, and having icebreaking configurations on its sides, the hull can be equipped on...
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5269249 |
High-speed hydrohull
The high-speed hydrohull comprises a portion (1) having, in a longitudinal section, an airfoil profile with a low coefficient of aerodynamic resistance, having a convex upper surface (1B) in order...
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5191848 |
Multihull vessels, including catamarans, with wave piercing hull configuration
A catamaran vessel with a pair of spaced apart, parallel hulls which are made of sealed watertight configuration of composite marine material and interconnected by a deck and cabin structure with...
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5188049 |
Catamaran boat
A powered catamaran boat having displacement hulls (10) that provide stable boat performance. The two hulls (10) are joined by a deck structure (12), forming a tunnel (16) between the two hulls....
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5129343 |
Monohull fast ship
A vessel (10) has a semi-displacement or semi-planing round bilge hull (11) characterized by low length-to-beam ratio (between about 5.0 to 7.5) and utilizing hydrodynamic lift. The bottom (15) of...
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5080032 |
Monohull fast sealift or semi-planing monohull ship
A vessel (10) has a semi-displacement or semi-planing round bilge hull (11) characterized by low length-to-beam ratio (between about 5.0 to 7.0) and utilizing hydrodynamic lift. The bottom (15) of...
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4883011 |
Hydrofoil keel
Disclosed ia a keel for a sailing boat having a hydrofoil section. The thickness to chord ratio of the keel increases from the top to the bottom creating a vortex trap and thus reducing the drag of...
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4702186 |
Sailboat having at least two hulls
In a sailboat having at least two hulls which are rigidly connected in parallel spaced arrangement by a platform, the hulls are provided at least at the bow with a bulge-shaped or drop-shaped...
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4660490 |
Recreational semi-displacement hull watercraft
A watercraft comprising an efficient, directionally stable and maneuverable hull construction useful for recreation and water sports. In a preferred embodiment the hull has an outwardly projecting...
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4638753 |
Ring segment ship hull
A ship hull design has circular arc frame lines of equal radius at stations 11-16 symmetrical fore and aft from a similar frame line at a central station 10, and a circular arc keel line 17 of...
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4389958 |
Hull for multihulled sailing vessels
Multihulled sailing vessels are provided wherein at least one hull, and preferably all hulls, are so shaped that there is a discontinuity in the keel line abaft the midship station of the hull, the...
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4224889 |
Multihull sailing craft and hull structure therefor
A sailing-multihull hull shape is disclosed which is designed to produce hydrodynamic lift in addition to static buoyant displacement lift. The dynamic lift is generated in direct proportion to the...
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4079688 |
Displacement hull
A low-drag hull for high-speed displacement type water-craft is constructed with a constant-section keel-less midbody having a length equal to or greater than one-third of the waterline length of...
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3981258 |
Waterski sailboat
A hydrofoil sailboat with a slender hull and a foil-shaped sail spaced laally therefrom. The hull has one flat side facing the sail and one convex side. The sail is inclined from the vertical...
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3656445 |
MULTI-HULLED BOAT
A boat comprising two or more hulls and a deck structure interconnecting said hulls at a point approximately midway between the top and the bottom of each hull so as to permit such boat to float...
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3410240 |
Hull forms
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3362369 |
Form of the hull of a low speed, full form ship
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3302603 |
Ship's hull construction
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3291088 |
Multi-purpose boat
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