A marine vessel electric propulsion system includes an electric motor, a propulsive force generator to be driven by the electric motor to generate a propulsive force, an operator to be operated by a user to adjust the power output of the electric motor, and a controller. The controller is configured or programmed to control the power output of the electric motor based on an operation of the operator, and to change a power output gain characteristic of the electric motor with respect to an operation amount of the operator in response to a gain change command.

A marine vessel electric propulsion system includes an electric motor, a propulsive force generator to be driven by the electric motor to generate a propulsive force, an operator to be operated by a user to adjust the power output of the electric motor, and a controller. The controller is configured or programmed to control the power output of the electric motor based on an operation of the operator, and to change a power output gain characteristic of the electric motor with respect to an operation amount of the operator in response to a gain change command.

A boat propeller apparatus can be coupled to virtually any motor boat to cause the boat to safely and efficiently produce a surfable wake. The boat propeller apparatus can be configured to mount to the boat in a way that causes the apparatus to be positioned and secured behind but spaced from the propeller while the boat is moving forward. The apparatus will therefore be in the path of the propelled water and will function to divert the propelled water in such a way as to create a larger/taller wake than would otherwise be produced by the boat. The boat propeller apparatus can also function as a propeller shield and be used in conjunction with a propeller guard.

Embodiments of outboard motors and related systems and components thereof, as well as arrangements of marine vessels implementing same, as well as related methods of operation, use, assembly, and manufacture, and related improvements, are disclosed herein. In at least some embodiments, the outboard motor includes a cowling system in which at least one divider portion separates an interior region into first and second portion, with the transmission and engine respectively being situated in the first and second portions, respectively. Additionally, in at least some embodiments, the outboard motor includes a water pump system in which a water pump is integrated with the transmission. Further, in at least some embodiments, the outboard motor includes a fuel vaporization suppression feature, or an oil tank feature that allows for desirable oil drainage from the engine of the outboard motor particularly when the outboard motor is in particular (e.g., storage) positions.

A drive arrangement for a marine vessel. The drive arrangement includes an upper drive part configured to be mounted onto an outside of a transom of the marine vessel. A lower drive part is connected to the upper drive part to be fixed in a vertical direction in relation to the upper drive part. The lower drive part has a hydrodynamic configuration and is provided with at least one propeller. A transmission system is arranged to transfer a drive torque to the propeller from a drive source system connected to the transmission system. An outer surface of the upper drive part substantially is made up of a plurality of surface sections connected by one or more edges. Each of said surface sections has a shape corresponding to a so-called ruled surface that can be generated by the motion of a straight line.

A drive arrangement for a marine vessel. The drive arrangement includes an upper drive part configured to be mounted onto an outside of a transom of the marine vessel. A lower drive part is connected to the upper drive part to be fixed in a vertical direction in relation to the upper drive part. The lower drive part has a hydrodynamic configuration and is provided with at least one propeller. A transmission system is arranged to transfer a drive torque to the propeller from a drive source system connected to the transmission system. An outer surface of the upper drive part substantially is made up of a plurality of surface sections connected by one or more edges. Each of said surface sections has a shape corresponding to a so-called ruled surface that can be generated by the motion of a straight line.

A hybrid marine drive unit mounted to a transom. The drive unit includes a drive housing mounted on the transom, a propelling unit rotatable about a vertical axis and mounted to a lower surface of the drive housing, and a transmission with at least a vertical drive shaft located in the drive housing and extending into the propelling unit. The vertical drive shaft is arranged transmit drive torque from at least one of multiple sources of drive torque. The vertical drive shaft is operably connected to a first source of drive torque arranged within the drive housing, and the vertical drive shaft is operably connected to a horizontal output shaft extending into the drive housing through the transom. The horizontal output shaft is connectable to a second source of drive torque.

An outboard motor for attachment to a hull of a marine vessel includes a lower case including a propeller shaft to rotate a propeller, and an upper case including a drive shaft to transmit a power to the propeller shaft. The lower case is selected from among different types of lower cases to be attached to the upper case, and the upper case and the lower case are connected by an intermediate structure.

An outboard motor for attachment to a hull of a marine vessel includes a lower case including a propeller shaft to rotate a propeller, and an upper case including a drive shaft to transmit a power to the propeller shaft. The lower case is selected from among different types of lower cases to be attached to the upper case, and the upper case and the lower case are connected by an intermediate structure.

The invention relates to a watercraft, particularly a kayak having a battery compartment and motor mount for mounting a motor thereto. The kayak can be propelled either by a motor mounted to the motor mount or by manual paddling by a user of the kayak. The kayak may additionally have a seat mounted onto a track to allow the user to adjust their position as needed in the kayak. The kayak is extra wide to provide stability, while chamfered side walls allow the user to paddle with comfort regardless of the extra width. The kayak may optionally have wheels mounted thereon to facilitate handling and transport by the user.