Disclosed is a fuselage assembly (100) configured to be attached to a mast assembly (50) of a powered hydrofoil watercraft (1). The fuselage assembly (100) comprises a mast assembly fixation section (106) and an outer housing portion (170) which accommodates, in particular surrounds or encases, a propulsion device (200), in particular an impeller (201), and which outer housing portion (170) at least partially limits an outer dimension of a flow channel (161) through which water is transported during operation of the hydrofoil watercraft (1). The outer housing portion (170) comprises an attachment portion (310) on which a tail unit (300), in particular 10 comprising a stabilizing member (301) such as a stabilizing wing (302), is formed or attachable thereto. In addition or alternatively, the propulsion device (200) may be accommodated in the outer housing portion (170) such that a user is prevented from touching the propulsion device (200).

A Method and Apparatus for Motorized Sit Down Hydrofoil have been disclosed. By using a seat with a seatbelt and bindings to secure a rider to a top of a board having a hydrofoil assembly on the bottom of the board a rider can be protected from drowning due to an overturned board.

A method of planing a marine vessel propelled by an electric propulsion system operably connected to a rotatable propeller system including that a command input requesting an increase in throttle is received. The method also includes that it is determined whether the marine vessel is on plane and whether there is sufficient power and energy available in the electric propulsion system to reach planing speed when the marine vessel is not on plane. The method further includes that power output from the electric propulsion system is increased for a selected period of time such that the electric propulsion system is allowed to overshoot continuous power limits of one or more components of the electric propulsion system for the selected amount of time. The one or more components of the electric propulsion system including at least one of an electric motor, an energy storage device, and an electric controller.

Disclosed is a module configured for removable attachment to a board and attached to an end of a mast, where the mast supports a hydrofoil and a motor to drive the board. The module includes a connector for connecting to a power source, internal control circuitry, and a thermal bridge to thermally connect the control circuitry to the mast. The module comprises a watertight cavity in which the internal control circuitry is contained.

A method and system for providing a watercraft device are disclosed. The watercraft device comprises a board, a throttle coupled to a top surface of the board, a hydrofoil coupled to a bottom surface of the board, and an electric propeller system coupled to the hydrofoil. The electric propeller system powers the watercraft device using information generated from the throttle. A center of buoyancy in a non-foiling mode of the watercraft device and a center of lift in a foiling mode of the watercraft device are aligned.

The present invention provides an aquatic moving body configured to move in a state where a main body portion is floated above a water surface, comprising: a first hydrofoil and a second hydrofoil disposed along a left-and-right direction of the aquatic moving body and provided in the main body portion so as to be able to change elevation angles independently of each other; a first propulsion unit provided at an end portion of the first hydrofoil and configured to generate a propulsive force; and a second propulsion unit provided at an end portion of the second hydrofoil and configured to generate a propulsive force, wherein a first partition wall is provided between the first hydrofoil and the first propulsion unit, and a second partition wall is provided between the second hydrofoil and the second propulsion unit.

The invention relates to a motor boat comprising a bearing structure (1) and at least one foil (2) which is defined by a hydrofoil and its support (4), which is positioned under said structure and slideably mounted with respect to the latter; characterized in that the foil (2) is also mounted in such a way as to adopt at least two fixed positions, namely a position referred to as the active position in which the foil (2) is lowered and a position referred to as the passive position in which the foil (2) coincides with the bearing structure (1) or is fully retracted into the latter.

A truss-born watercraft supported above at least two, preferably three, planing skis. An outboard motor may be positioned within or above one or more of the skis to provide propulsion. A freight or passenger compartment may be secured and/or supported by the truss members above the water line. As the watercraft hits a cruising speed, skis are lifted above the water level allowing planning of skis and extreme improvement in mobile efficiency.

A hydrofoiling watercraft is disclosed that includes a board having a top surface for supporting a user and a bottom surface. Extending from the top surface of the board is a handlebar. Extending from the bottom surface of the board is a hydrofoil including a strut and a hydrofoil wing. A propulsion system is attached to the hydrofoil.

A watercraft including a board having a top surface and a bottom surface and a hydrofoil attached to a strut. The strut attaches at the bottom surface of the board. The watercraft includes a movable portion coupled to the top surface of the board such that the movable portion is configured to move relative to a fixed portion of the board.