A hydrofoil board having a hydrofoil and individually controllable flaps configured to be controlled to stabilize the board in a level position even when incurring waves. The flaps are spaced from the hydrofoil to generate a gap, and direct fluid flowing under the hydrofoil through the gap, and over the flaps. The flaps control the pitch and direction of the hydrofoil board when propelled in motion. A processor uses an internal measurement unit (IMU) to obtain orientation and acceleration information of the hydrofoil board. A global positioning system (GPS) unit is also used as an additional speed and location sensor. The processor combines IMU data with a user/rider's input, such as selected speed and direction via handheld wireless controller, and individually controls the flap motors to position the flaps, and the propulsion motor to set speed. In one example, the controller is configured to bring the hydrofoil board to a complete and stabile stop.

A watercraft can include a foil configured for movement between an undeployed position and a first deployed position in which the foil raises the relative position of the watercraft relative to the water line as the watercraft moves forward through the water, thereby facilitating planing of the watercraft. The foil can be configured for movement to a second deployed position in which the foil lowers the relative position of the stern end of the watercraft as the watercraft moves forward through the water, thereby modifying the wake produced by the watercraft.

A recreational water flotation device includes a central body defining an upper surface and a bottom surface and having a front end and a rear end. A left lateral element extends from a left end of the central body and defines a left canted surface canted toward the central body and further defines a left end of the flotation device. A right lateral element extends from a right end of the central body and defines a left canted surface canted toward the central body and further defining a right end of the flotation device. The device is buoyant in water. A propeller can be mounted to the bottom surface of the central body.

A watercraft can include a foil configured for movement between an undeployed position and a first deployed position in which the foil raises the relative position of the watercraft relative to the water line as the watercraft moves forward through the water, thereby facilitating planing of the watercraft. The foil can be configured for movement to a second deployed position in which the foil lowers the relative position of the stern end of the watercraft as the watercraft moves forward through the water, thereby modifying the wake produced by the watercraft.

A hydrofoil vehicle comprises a frame and at least one foil. The vehicle comprises a moveable control surface configured to control a pitch of the vehicle, in use. A locking mechanism is provided for restricting movement of the control surface when the vehicle is not foiling, for example during launching. In examples, the locking mechanism activates automatically when the hydrofoil vehicle is not foiling. In examples, the vehicle is human powered.

A hydrofoil vehicle comprises a frame and at least one foil. The vehicle comprises a moveable control surface configured to control a pitch of the vehicle, in use. A locking mechanism is provided for restricting movement of the control surface when the vehicle is not foiling, for example during launching. In examples, the locking mechanism activates automatically when the hydrofoil vehicle is not foiling. In examples, the vehicle is human powered.

The electric hydrofoil watercraft according to the invention has a thermally insulated mast, thermal insulation and vibration isolation are provided between the mast and the above-water platform by placing an insulating element between them. This increases the life of the hydrofoil and improves user experience.