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6691632 |
Sailing craft stable when airborne
A wind propelled vehicle comprising: (a) an assembly of airfoils fixedly joined; (b) all-moveable rudder and horizontal stabilizer, or suitable substitute, for aerodynamic yaw and pitch control;...
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6675735 |
Hydrofoil sail craft
A sailing craft including a single hydrofoil assembly, an aerofoil assembly, and a hull assembly with a rigid beam interconnecting the hydrofoil assembly, the aerofoil assembly, and the hull...
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6141809 |
Wing profile sail
A wing profile sail is in the form of a sailcloth which defines an airfoil-shaped space, which is filled with air through openings or one-way closing mechanisms. At the sail's luff (1) there is...
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6070545 |
Sails for sailboats having self-tacking leech flaps
In an improved sail for a sailboat, the trailing edges of a pair of flaps of a conventional sail material are attached to the trailing edge of the sail, one on each side; the leading edges of the...
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5435259 |
Rein-deer kite and its control systems
What has been created is a new device that is used to take benefits from the energy of the high altitude winds for purposes of doing work and to produce usable and storable energy such as...
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5113775 |
Aero hydrofoil sail boat
A high-speed, ultrastable, wind propelled watercraft employs an airfoil for propulsion and buoyant hydrofoils for support. A buoyant keel/rudder is rotatably mounted to a boom which horizontally...
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5046440 |
Sail rig and staysail system
A sail rig for a sailing vessel or a vessel provided with auxiliary sail propulsion comprises a mast, a continuous yard/boom provided on the mast, a backstay, a main sail located between the mast...
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4947775 |
Water air interface vehicle
A water and air supported vehicle propelled by the wind. The vehicle includes a long narrow hull (30) that displaces water at low speeds and a plurality of hydrolfoils (36) distending from the hull...
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4924794 |
Sail
In its preferred form the present invention comprises an aerofoil sail having tensioned battens and an internal web structure to maintain an aerodynamically efficient shape.
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4848258 |
Airfoil sailing system
An airfoil system for use on water vessels is described. A plurality of fore and aft symmetrical sails are arranged to form an asymmetrical two surface airfoil. The individual sails may be rotated...
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4843987 |
Heel counteracting airfoil
A wing type airfoil is used to propel a vessel. The airfoil comprises a mast, a counterbalancing airfoil and a driving airfoil. The mast is elongate and has upper and lower portions, the lower...
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4796554 |
Sailboat
The invention relates to a sailboat in which the hull is defined by cross-sections forming equilateral triangles standing on one tip with convex sides and which continuously decrease in size toward...
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4708075 |
Multi-hull sailboat with fixed airfoils
A three hulled sailboat consists of a tripod frame having three downwardly inclined spars which define support points at their distal ends. During the sailing of the boat, one support point is...
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4703707 |
Sails and sailing vessels
A sail assembly comprising a mast, spaced apart lateral upper and a lower elongated members fixed to the mast, a track joining first ends of the upper and lower members, two panels of sail material...
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4685410 |
Wing sail
An airfoil sail system for a boat having a mast is disclosed. The airfoil sail system includes a front airfoil which is pivotal about an axis defined by the mast. The front airfoil has leading and...
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4637331 |
Sail and sailing rig
A sail and sailing rig smoothes the flow of air past a conventional mast and onto the sail, thereby enhancing the power of the sail. The sail includes a sail body having a mast-enveloping portion...
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4624203 |
Batten structure for a wing sail
The invention provides a batten structure which can be placed inside a double sided sail to provide a so-called "wing" sail having an airfoil section which can be close to an ideal airfoil on...
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4562784 |
Sailing craft
A sailing craft having hydrodynamically shaped catamaran hulls and tapered configuration rudder assemblies attached to each hull. Low draft keels are attached to the fore one-half bottom portions...
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4530301 |
Variable camber air-foil for a vessel
The present invention entails a variable camber airfoil assembly mounted on a vessel and having a pivotably mounted rigid leading edge member. The rigid leading edge member includes an elongated...
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4473023 |
Relating to wingsail craft and wingsails therefor
A wingsail assembly in which the pivoting mounting is situated in line with a strengthened portion of the sail assembly such as a strengthened leading edge of a sail element while still retaining...
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4437426 |
Wing type air foil assembly
The present invention relates to a wing type air foil assembly that is adapted to be utilized by boats or vessels, or even vehicles, that is designed to function in the same general manner as a...
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4432298 |
Hydrofoil sailing craft
A hydrofoil sailboat comprises forward and aft surface piercing hydrofoils and an asymmetrical wingsail. Both hydrofoils have an inverted arch configuration and have a cross-section which is...
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4386574 |
Sail assembly of variable profile, reversible and collapsible
A sail assembly of variable profile, reversible and collapsible, comprising a mast on which are mounted ribs set apart one from the other, each one being constituted of two flexible laths joined...
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4263861 |
Sailing craft
In a sailing craft, in which the foot of a sail is attached to a yard pivoted on a boom, itself pivoted on the mast, this sail, provided to be of single or double-thickness, preferably comprising a...
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4230060 |
Sailing system
A mast is mounted onto a boat for 360° rotation about its longitudinal axis, relative to the sailboat and the rigging for the mast. The rigging braces the mast against buckling and comprises a...
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3934533 |
Aerofoil or hydrofoil
A reversible aerofoil or hydrofoil has a central panel with lateral panels hinged thereto. The section of the central panel is symmetrical on either side of a central axis and the lateral panels...
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3844238 |
SAILING BOATS WITH RIGID SAILS
A sailing craft has a rigid sail assembly mounted for free rotation about an upright axis and a tail vane rotatably carried on the assembly for adjusting the incidence of upright aerofoil elements...
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3802366 |
HYDROFOIL SAILBOAT
A hydrofoil sailing craft including a main hull flanked by a pair of outrigger hulls extending forwardly of the main hull. The outrigger hulls mount depending hydrofoils which extend downwardly and...
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3800724 |
WINGED SAILING CRAFT
A sailing craft comprises: A. a body, and B. first and second elongated wings carried by the body, the first wing extending generally upright and the second wing extending generally laterally at...
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3381647 |
Full airfoil sail
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3332383 |
Variable camber airfoil
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3132620 |
Sailboat
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