A retaining device of a water sport device has a drive, which is preferably designed as an electromechanical or electropneumatic drive and via which the foil device can be transitioned from a resting and/or starting position into the operating position and/or from the operating position into the resting and/or starting position. The actuation can take place manually by a person operating the water sport device. The water sport device may already be lowered into knee-deep water near the shore or beach, for example, and guided or driven there in the direction of deeper water. As soon as sufficiently deep water has been reached, the foil device can be transitioned into the operating position, which is at a greater distance from the floating body, by means of the drive. This process can take place automatically when a specifiable or set water depth has been reached or by the release on the part of the person using the water sport device.

A retaining device of a water sport device has a drive, which is preferably designed as an electromechanical or electropneumatic drive and via which the foil device can be transitioned from a resting and/or starting position into the operating position and/or from the operating position into the resting and/or starting position. The actuation can take place manually by a person operating the water sport device. The water sport device may already be lowered into knee-deep water near the shore or beach, for example, and guided or driven there in the direction of deeper water. As soon as sufficiently deep water has been reached, the foil device can be transitioned into the operating position, which is at a greater distance from the floating body, by means of the drive. This process can take place automatically when a specifiable or set water depth has been reached or by the release on the part of the person using the water sport device.

The present invention is used in water board sports but maybe of benefit to other water vessels; the present invention assists in the planing of water sport boards; the present invention was initially designed for windsurfing it can be used in surfing, kite-boarding and with other water crafts; the present invention uses one or more hybrid-fins, referred to as Squid-Fins™, along with a new base and fin-box that allows for more adjustments and easier swapping of fins; this system helps the board get up on a plane earlier and stay on that plane longer along with making it possible to add new characteristics to the performance of the board including hydro-foiling.

The present invention is used in water board sports but maybe of benefit to other water vessels; the present invention assists in the planing of water sport boards; the present invention was initially designed for windsurfing it can be used in surfing, kite-boarding and with other water crafts; the present invention uses one or more hybrid-fins, referred to as Squid-Fins™, along with a new base and fin-box that allows for more adjustments and easier swapping of fins; this system helps the board get up on a plane earlier and stay on that plane longer along with making it possible to add new characteristics to the performance of the board including hydro-foiling.

A modular, weight-shift controlled watercraft device is disclosed which includes: a modular board removably attachable to a power system. The power system includes a modular power supply system, and a modular propulsion system. The power supply system includes a housing including a battery. The propulsion system includes a modular strut, a modular propulsion pod, and a modular hydrofoil. In one embodiment, the power supply system is removably and mechanically attachable directly to the propulsion system.

This disclosure extends to systems, apparatus, and methods for sports board hydrofoil masts and mast-to-fuselage connection assemblies for hydrofoil sports boards. In one exemplary system, a hydrofoil mast formed as an elongated member may include a securing structure disposed in a lower region and a fuselage may include a recess into which the mast is inserted. A securing assembly may be disposed in the fuselage for actuation to secure the mast to the fuselage by interacting with the securing structure on the mast. The securing assembly may include a cam member or locking member and an actuating member. Unique hydrofoil masts constructed from composite materials having reinforcing metal members are disclosed and may be useful in the connection assemblies.

This disclosure extends to systems, apparatus, and methods for sports board hydrofoil masts and mast-to-fuselage connection assemblies for hydrofoil sports boards. In one exemplary system, a hydrofoil mast formed as an elongated member may include a securing structure disposed in a lower region and a fuselage may include a recess into which the mast is inserted. A securing assembly may be disposed in the fuselage for actuation to secure the mast to the fuselage by interacting with the securing structure on the mast. The securing assembly may include a cam member or locking member and an actuating member. Unique hydrofoil masts constructed from composite materials having reinforcing metal members are disclosed and may be useful in the connection assemblies.

Systems, apparatus, and methods for hydrofoil assemblies with planing blades that may be adjusted, and securely maintained in varying tilts with respect to a support member, using a curved indexing system with a curved ridge and a counterpart groove that utilize interacting position retaining elements to retain a desired tilt in different adjustable positions. In one illustrative system, a planing blade may have a convexly curved ridge disposed on a surface thereof with a series of transverse grooves disposed in the curved ridge. A support member may have a counterpart concavely curved receiver with a series of counterpart transverse grooves formed therein. When a user places the planing blade in position with the convex ridge contacting the concave receiver, the blade may be tilted to a desired position. The counterpart transverse grooves interconnect to provide an indexed positive interlock, securely maintaining the blade in the desired position.

This disclosure extends to systems, apparatus, and methods for quick release mast mounting assemblies for board mounted hydrofoil assemblies. In one exemplary system, a quick release mounting assembly may include board mountable base receiver for mounting to a sports board, which defines a longitudinal receiving recess. A resilient locking member is disposed at a front end of the base receiver. A separate mast connection member formed as a body configured for connection to an upper end of a hydrofoil mast, corresponds to the longitudinal receiving recess, and includes a counterpart structure for forming a secure connection with the resilient locking member. The mast connection member may include opposite shoulder or wing members that extend laterally orthogonal to the longitudinal axis thereof and the receiving recess may include counterpart slots for receiving these members. The resilient locking member may include a separate spring assembly or be a unitary member.

This disclosure extends to systems, apparatus, and methods for quick release mast mounting assemblies for board mounted hydrofoil assemblies. In one exemplary system, a quick release mounting assembly may include board mountable base receiver for mounting to a sports board, which defines a longitudinal receiving recess. A resilient locking member is disposed at a front end of the base receiver. A separate mast connection member formed as a body configured for connection to an upper end of a hydrofoil mast, corresponds to the longitudinal receiving recess, and includes a counterpart structure for forming a secure connection with the resilient locking member. The mast connection member may include opposite shoulder or wing members that extend laterally orthogonal to the longitudinal axis thereof and the receiving recess may include counterpart slots for receiving these members. The resilient locking member may include a separate spring assembly or be a unitary member.