An unmanned, autonomous, ocean-going vessel including a primary hull and a rigid wing rotationally coupled with the primary hull that freely rotates about a rotational axis. At least one of the primary hull and the rigid wing includes at least one selectively floodable compartment configured to selectively flood to submerge the primary hull and at least a portion of the rigid wing. The vessel further includes at least one controller configured to maintain a desired heading. The vessel further includes a control surface element configured to aerodynamically control a wing angle of the rigid wing based on a force exerted by wind on the control surface element. The vessel further includes a rudder. The at least one controller is further configured to determine a rudder position and generate a signal to position the rudder. The vessel further includes a keel coupled with the primary hull.

An unmanned, autonomous, ocean-going vessel including a primary hull and a rigid wing rotationally coupled with the primary hull that freely rotates about a rotational axis. At least one of the primary hull and the rigid wing includes at least one selectively floodable compartment configured to selectively flood to submerge the primary hull and at least a portion of the rigid wing. The vessel further includes at least one controller configured to maintain a desired heading. The vessel further includes a control surface element configured to aerodynamically control a wing angle of the rigid wing based on a force exerted by wind on the control surface element. The vessel further includes a rudder. The at least one controller is further configured to determine a rudder position and generate a signal to position the rudder. The vessel further includes a keel coupled with the primary hull.

A sail comprising a rotating flexible mast sleeve wrap surrounding the mast and attached to a sail track for controlling the movement of the sail. The sleeve assembly is slotted to allow for partial rotation of the sleeve wrap, the sail track and the sail, so that the sleeve wrap, the sail track and the sail rotate to form an aerodynamic shape on the lee side of the rotating flexible mast reducing aerodynamic losses.

A sail comprising a rotating flexible mast sleeve wrap surrounding the mast and attached to a sail track for controlling the movement of the sail. The sleeve assembly is slotted to allow for partial rotation of the sleeve wrap, the sail track and the sail, so that the sleeve wrap, the sail track and the sail rotate to form an aerodynamic shape on the lee side of the rotating flexible mast reducing aerodynamic losses.

The patent discloses a multihull watercraft with a unique hull configuration providing numerous benefits. Passenger cabins are enclosed within a separate upper hull, which allows the accommodation space and the float hulls to be independently optimized. The new configuration also provides reduced windage, and creates additional deck space for easier boarding, recreational use, and safer access to shore craft.

The patent discloses a multihull watercraft with a unique hull configuration providing numerous benefits. Passenger cabins are enclosed within a separate upper hull, which allows the accommodation space and the float hulls to be independently optimized. The new configuration also provides reduced windage, and creates additional deck space for easier boarding, recreational use, and safer access to shore craft.

In the art of sailing vessels, various styled tracks retain an edge of a sail. A retained sail edge is prone to fouling by environmental conditions and becomes exceptionally difficult to remove. A disclosed Foiling Rabbit 100 or track conditioner, cleans, lubricates and otherwise services the sail void area of a track or other sail retention area. A cleaning wick 400 may have main body 430 attached to a thickened or rolled interior edge and outer surface 430. An inner edge of the wick may be retained within a wick retaining cartridge 7. A lubricant cartridge 1 may be attached to the wick retaining cartridge. The lubricant cartridge may define one or more reservoir bodies 2a which may contain a lubricant and cleaning fluid. By use of various direct and indirect channels, and controlled capillary action, lubricant flows from the lubricant cartridge to a workpiece removes debris and lubricates.

In the art of sailing vessels, various styled tracks retain an edge of a sail. A retained sail edge is prone to fouling by environmental conditions and becomes exceptionally difficult to remove. A disclosed Foiling Rabbit 100 or track conditioner, cleans, lubricates and otherwise services the sail void area of a track or other sail retention area. A cleaning wick 400 may have main body 430 attached to a thickened or rolled interior edge and outer surface 430. An inner edge of the wick may be retained within a wick retaining cartridge 7. A lubricant cartridge 1 may be attached to the wick retaining cartridge. The lubricant cartridge may define one or more reservoir bodies 2a which may contain a lubricant and cleaning fluid. By use of various direct and indirect channels, and controlled capillary action, lubricant flows from the lubricant cartridge to a workpiece removes debris and lubricates.

A portable sail for use with a paddle and paddle board, where one edge of the sail has a fastening portion that is reversibly affixed along the length of the paddle, while the opposite end of the sail is held by the user via a cord or handle. With paddle held upright on the surface of the paddle board with one hand, and controlling the end of the sail with the other hand, a user can capture the wind and propel the paddle board through the water. The rate of propulsion can be adjusted by partially wrapping the sail around the paddle to reduce the sail area exposed to the wind. Furthermore, the sail can be entirely wrapped around the paddle so the paddle can be used to manually propel the paddle board in the traditional manner.

A portable sail for use with a paddle and paddle board, where one edge of the sail has a fastening portion that is reversibly affixed along the length of the paddle, while the opposite end of the sail is held by the user via a cord or handle. With paddle held upright on the surface of the paddle board with one hand, and controlling the end of the sail with the other hand, a user can capture the wind and propel the paddle board through the water. The rate of propulsion can be adjusted by partially wrapping the sail around the paddle to reduce the sail area exposed to the wind. Furthermore, the sail can be entirely wrapped around the paddle so the paddle can be used to manually propel the paddle board in the traditional manner.