Abstract: Embodiments described herein relate generally to a sailing vessel that can substantially obviate the heeling problem experienced by classical sailboats. During navigation, the sailing vessel is driven forward by an aerodynamic force exerted by wind on the sail, and balanced by a hydrodynamic force exerted by water on a float on the stern of the sailing vessel, the aerodynamic force and the hydrodynamic force being parallel or substantially parallel to a longitudinal axis of the sailing vessel.

Abstract: Embodiments described herein relate generally to a sailing vessel that can substantially obviate the heeling problem experienced by classical sailboats. During navigation, the sailing vessel is driven forward by an aerodynamic force exerted by wind on the sail, and balanced by a hydrodynamic force exerted by water on a float on the stern of the sailing vessel, the aerodynamic force and the hydrodynamic force being parallel or substantially parallel to a longitudinal axis of the sailing vessel.

Abstract: A paddle mount for a boat is described. The mount includes a generally t-shaped tubular body including a flange and a stem, where the length of the flange and the stem is adjustable and the ends of the flange are configured to rest on opposite sides of the boat cockpit. The mount is configured to couple to the front end of the cockpit and to an end of the stem, such that the t-shaped body may be rotated upwards away from the boat. A mount adapter is also described that may be used to attach a paddle to the boat using the mount.

Abstract: A paddle mount for a boat is described. The mount includes a generally t-shaped tubular body including a flange and a stem, where the length of the flange and the stem is adjustable and the ends of the flange are configured to rest on opposite sides of the boat cockpit. The mount is configured to couple to the front end of the cockpit and to an end of the stem, such that the t-shaped body may be rotated upwards away from the boat. A mount adapter is also described that may be used to attach a paddle to the boat using the mount.

Abstract: This embodiment relates generally to the deployable assembly (30) for a suspended device (38), that may lead to the stabilization of a watercraft (32), such as kayaks and canoes, which allows an operator (134) to stand or move in the watercraft (32) without it rocking or rolling over. The deployable assembly with an example pontoon (112) connected to a folding and rotate-able arm (80) that enable pivotal and rotate-able movement of each pontoon between storage (128) and deployed positions. A locking housing (102) secures the pontoon (112) from substantial movement when at or in between operating and storable positions (128). The deployable assembly (30) is mounted to a watercraft (32) which allows for extending a stabilizing pontoon individually on each side of the watercraft from a rest position (128) to an operative position, by solo means.

Abstract: Retractable hulled catamaran boat comprising: Central body also port and starboard hulls. Said body having port and starboard walls with entry openings; also floor with underside having hull span stop means and being smooth and/or having track or channel system for said hulls retractable mounting. Said hulls with upright means having inboard sides with mounting means for roller (slider) mounting on said floor underside enabling hull retraction under said body or extension and having outboard sides attaching an associated hull roof. First embodiment said roof being minimum two fastened panels. Second and third embodiments said roof being three dimensional enclosure. First and second embodiments said roof free top/inboard edge attaching associated said walls. Third embodiment said roof inboard edges angled forming outward span stop and each said roof travels through opening in associated said walls. Said roof folds, detaches, or retracts allowing hull retraction.

Abstract: A multi-hull sailboat or motorboat that are made of a number of single-hull vessels in the process of modification or utilization of old yachts, wherein said multi-hull vessel can be configured as a pivoted train-like combined vessel, as a permanently-merged vessel or can be configured as a catamaran or triamaran. Also, said multi-hull sailboat or motorboat can be made of a number of new single-hull vessels equipped by a universal connecting device.

Abstract: A multihull hydrofoil watercraft incorporates a stabilization system wherein the buoyancy of the hulls is used as a sensing and control mechanism for the hydrofoils. The use of hull buoyancy to adjust the hydrofoil lift provides for automatic control of altitude, pitch and roll, and allows the craft to accommodate varying weather and sea conditions while providing a smooth ride for passengers. The stabilization technique eliminates the need for extraneous sensing mechanisms placed in or on the water surface which are subject to fouling, damage, or disruption by localized surface disturbances.

Abstract: A multi-hull vessel capable of planing. The vessel has a rigid superstructure that is rotatably linked to flat-bottomed hulls. As the vessel heels, the pivotable connection between the superstructure and the hulls allows the superstructure to heel over while the hulls remain oriented so that their bottoms are parallel to the water surface. This allows the multi-hull vessel to plane at relatively low speeds without risking the consequences of a leeward planar hull digging into the water. Further, the vessel is made of lightweight components and configured to be assembled and disassembled in a short time by a single individual, and to be easily lifted and carried atop an automobile for overland transport.

Abstract: A self-stabilizing catamaran wing assembly for a windsurfing catamaran that provides all the sailing characteristics and benefits of a windsurfer, yet allows operation even by sailors with physical limitations. In such a wing assembly, the wing or sail is automatically moved to the correct position by using counter balancing water pressure from a rotating central keel connected to the central mast structure of the catamaran. The central keel rotates in the opposite direction of the wing structure of the catamaran when the wing is moved off center by the wind. The keel also rotates such that a greater surface area is presented to the water flow that approaches the keel from the direction the catamaran is headed toward, guided by dagger-boards and rudders on the hulls. The force of the water on the keel offsets the force of the wind against the sails and automatically pushes the keel and mast structure back towards a stable upright position.

Abstract: An improved control system for a sailing vessel for controlling the position of the sail and the rudder, and affixed to a slidable seat apparatus. A movement of the seat apparatus does not alter the position of the sail or the rudder. A ballast control, steering control and sail control are located on the slidable seat apparatus. The slidable seat apparatus provides a ballast control means using the helmsperson's weight and the seat itself as movable ballast. Furthermore, the steering control and the sail controls are mounted to the movable seat and are operable independently and simultaneously with the movement of the seat. A base provides a base connection means for the seat, and in the case of a multi-hull embodiment of the sailboat, the base is substantially in the form of a scissoring “X” shape. The scissoring base functions as both a connecting means and a means to adjust the distance between the hulls for operation or storage.

Abstract: A multi-purpose sailing kit assembly including at least one, and preferably two separate hulls. Each of the hulls further includes first and second elongated, buoyant and self-contained halves which are pivotally secured together along a longitudinal direction. Each of the pairs of hull halves further include first and second longitudinal and perpendicularly extending planar surfaces such that the halves may be converted from a first cross sectional profile to a second cross sectional profile. Coupling mechanisms are provided for engaging within selectively formed circular openings in the planar surfaces of the hull halves and locking engage the hull halves together in the desired cross sectional profile. A frame is provided and secures first and second convertible hulls together in a spaced manner or, alternatively, supports outriggers in a spaced manner relative to a single hull.