The watersports system comprises a floating, non-motorized watersports assembly (12) provided with an interface (30) for removable sealed assembly to a marine engine. The first floating watersports assembly includes an assembly interface (39) for assembly with a second floating watersports assembly. The watersports system comprises a second floating watersports assembly (14), comprising an assembly interface (37) for assembly with the first floating watersports assembly. Assembling the first floating watersports assembly and the second floating watersports assembly forms a second, floating craft (1) that can be sailed, propelled by an engine (2).

The present invention provides a remote-controllable underwater device for manoeuvring a vessel. The device comprising at least one housing, a connection unit provided on the housing for rigidly attaching below the water to the vessel to be manoeuvred, at least one propeller mounted on the housing for moving the device and the vessel attached to the connection unit, an antenna for communication with the device from a remote control unit, at least one sensor for path tracking and positioning of the device and the vessel, and a power source for providing power to the connection unit, the propeller, the antenna, and the sensor.

An aquatic vessel basically includes a floating body, a submersible propulsion unit and a communication device. The floating body has an above water level surface and a below water level surface. The submersible propulsion unit is disposed on the floating body beneath the below water level surface of the floating body. The communication device is disposed on the floating body above the above water level surface of the floating body. The communication device is wired to the submersible propulsion unit, and is configured to wirelessly communicate with a control module.

An integrated tow system may include one or more unmanned towboat modules that may be used to improve maneuvering of tows on an inland waterway, such as a river. To reduce environmental stresses on operators, a command module that includes control and communications equipment for controlling operation of the unmanned towboat modules may provide living quarters for the operators, but not include a propulsion system for maneuvering a tow. The control and communication equipment may monitor for rotation commands by an operator that exceed rotational capabilities of the unmanned towboat modules, and provide for non-linear controls that include changing position of a rotational point that is centrally located longitudinally along the tow so as to provide for 1:1 rotational control of the tow by a tow drive system (e.g., bow and stern unmanned towboat modules). River tracking and river parking features may be supported by the control and communications equipment.

The present invention provides a remote-controllable underwater device for manoeuvring a vessel. The device comprising at least one housing, a connection unit provided on the housing for rigidly attaching below the water to the vessel to be manoeuvred, at least one propeller mounted on the housing for moving the device and the vessel attached to the connection unit, an antenna for communication with the device from a remote control unit, at least one sensor for path tracking and positioning of the device and the vessel, and a power source for providing power to the connection unit, the propeller, the antenna, and the sensor.

The watersports system comprises a floating, non-motorized watersports assembly (12) provided with an interface (30) for removable sealed assembly to a marine engine. The first floating watersports assembly includes an assembly interface (39) for assembly with a second floating watersports assembly. The watersports system comprises a second floating watersports assembly (14), comprising an assembly interface (37) for assembly with the first floating watersports assembly. Assembling the first floating watersports assembly and the second floating watersports assembly forms a second, floating craft (1) that can be sailed, propelled by an engine (2).

A multihull module is provided. The multihull module includes multiple power floats, an actuation interface controller, and a vehicle controller. The power floats are disposed on a vehicle. The actuation interface controller is coupled to the power floats, and is configured to control the power floats. The vehicle controller is coupled to the actuation interface controller, and is configured to provide a control signal to the actuation interface controller. The actuation interface controller controls the power floats according to the control signal.

An aquatic vessel basically includes a floating body, a submersible propulsion unit and a communication device. The floating body has an above water level surface and a below water level surface. The submersible propulsion unit is disposed on the floating body beneath the below water level surface of the floating body. The communication device is disposed on the floating body above the above water level surface of the floating body. The communication device is wired to the submersible propulsion unit, and is configured to wirelessly communicate with a control module.

An aquatic jet propulsion device basically includes a portable main control module, a plurality of submersible propulsion units and a sub-two-way communication device. The portable main control module includes a main controller and a main two-way communication device. Each of the submersible propulsion units includes a motor, a battery electrically connected to the motor and a motor controller operatively connected to the motor to control a speed of the motor. The sub-two-way communication device is configured to communicate with the main two-way communication device. The main controller is programmed to individually control the speed of the motors of the submersible propulsion units via the motor controllers.

An aquatic jet propulsion device basically includes a portable main control module, a plurality of submersible propulsion units and a sub-two-way communication device. The portable main control module includes a main controller and a main two-way communication device. Each of the submersible propulsion units includes a motor, a battery electrically connected to the motor and a motor controller operatively connected to the motor to control a speed of the motor. The sub-two-way communication device is configured to communicate with the main two-way communication device. The main controller is programmed to individually control the speed of the motors of the submersible propulsion units via the motor controllers.