Abstract: A system and method of steering a watercraft. The method comprising determining an estimated speed, an estimated yaw, and an estimated yaw rate of change of a watercraft based on a first output from a GPS and a second output from an inertial measurement unit; adjusting a position of a rudder coupled to a hull of the watercraft based on a position of a steering wheel; determining a desired yaw rate of change of a hull based on the position of the steering wheel and the estimated speed; energizing a propeller to provide a propelling force on the hull; and energizing a thruster coupled to the hull based on an error between the desired yaw rate of change and the estimated yaw rate of change.

Abstract: A system and method of steering a watercraft. The method comprising determining an estimated speed, an estimated yaw, and an estimated yaw rate of change of a watercraft based on a first output from a GPS and a second output from an inertial measurement unit; adjusting a position of a rudder coupled to a hull of the watercraft based on a position of a steering wheel; determining a desired yaw rate of change of a hull based on the position of the steering wheel and the estimated speed; energizing a propeller to provide a propelling force on the hull; and energizing a thruster coupled to the hull based on an error between the desired yaw rate of change and the estimated yaw rate of change.

Abstract: A watercraft comprising a hull, an electric drive, a battery electrically coupled to the electric drive, an intake aperture formed in the hull, and a pump fluidly coupled to the intake aperture by an intake channel positioned between the intake aperture and the pump. The watercraft further includes an outlet channel fluidly coupled to the pump and the battery, and a discharge aperture formed in the hull and fluidly coupled to the battery by a discharge channel positioned between the discharge aperture and the battery.

Abstract: A watercraft comprising a hull, a first attachment coupled to an exterior surface of the hull, a second attachment coupled to the exterior surface of the hull, and a closed-loop cooling system. The closed-loop cooling system includes a pump, a first channel at least partially formed by the first attachment, a second channel at least partially formed by the second attachment, the second channel in fluid communication with the first channel, and a coolant circulated through the first channel and the second channel by the pump.

Abstract: A watercraft comprising a hull, an electric drive, a battery electrically coupled to the electric drive, and an actuation assembly coupled to the battery. The battery is movable with respect to the hull by the actuation assembly between a first position and a second position.