A propulsion device for marine vessel. A base is configured to be coupled to the marine vessel, the base having sides that extend downwardly from the marine vessel. A propulsor is pivotally coupled to the base and pivotable into and between a deployed position and a stowed position. The propulsor comprises a propeller having a hub with blades extending away therefrom. The propulsor is configured to propel the marine vessel in water when in the deployed position by rotating the propeller. An alignment device aligns the blades of the propeller between the sides of the base when the propulsor is in the stowed position.

A boat having an electric motor coupled with an electrical store is disclosed. The electrical store includes a storage element, and positive and negative poles in current-conducting connection with the storage element. An isolating circuit element is operatively connected to a user activatable emergency stop switch. The isolating circuit element is configured to, upon activation of the emergency stop switch, isolate the current-conducting connection between the storage element and at least one of the poles.

A mount for mounting a drive module to a watercraft is described herein. The mount in-use with the drive module is also described. The mount in-use with the drive module and the watercraft is also described. The mount includes a frame configured to be attached to the watercraft. The mount is also configured to attach to the drive module to selectively allow the drive module to translate from a first position to a second position. When in the first position, the drive module is capable of propelling the watercraft. The frame has a retainer to fix the drive module in the first position and a first spring to assist translation of the drive module toward the second position. The second position is a relatively raised position compared to the first position.

A control system for navigating a marine vessel employs at least a first motor and a second motor. The control system is configured to communicate with the first and second motors. The control system is configured to receive a position measurement and an orientation measurement for the marine vessel. The control system is further configured to generate at least one control signal for the first motor based on the position measurement and at least one control signal for the second motor based on the orientation measurement.

A marine drive is for propelling a marine vessel. The marine drive has a propulsor configured to generate a thrust force in a body of water, an electric motor that powers the propulsor, a battery having a battery port for outputting battery power, a supporting frame that supports the marine drive relative to marine vessel, the supporting frame having a frame interior that retains the battery, and a motor port in the frame interior, wherein inserting the battery into the frame interior engages the battery port with the motor port so that the battery provides electric power to the electric motor. A removable cover is provided on the motor port.

A marine drive is for propelling a marine vessel. The marine drive has a propulsor configured to generate a thrust force in a body of water, an electric motor which powers the propulsor, a battery having a battery port for outputting battery power, a supporting frame which supports the marine drive relative to marine vessel, the supporting frame having a frame interior which retains the batter, and a cowling on the supporting frame. The cowling has a first cowl portion and a second cowl portion which is movable relative to the first cowl portion into a closed position enclosing the supporting frame and the battery in a cowling interior and alternately into an open position providing access to the cowling interior enabling insertion and removal of the battery.

Described herein are watercraft comprising a hull comprising a first hull assembly, and a second hull assembly opposite the first hull assembly and parallel to the first hull assembly; and a frame configured to couple the first hull assembly to the second hull assembly. In sonic embodiments, the first hull assembly comprises a first quarter hull coupled to a second quarter hull, and the second hull assembly comprises a third quarter hull coupled to a fourth quarter hull. In some embodiments, the first and third quarter hulls are substantially reflectively duplicative of the second and fourth quarter hulls. In some embodiments, the first hull assembly is substantially reflectively symmetrical to the second hull assembly. Various embodiments may further include a roof comprising one or more energy harvesting arrays thereon. The roof may be movable, in various embodiments, between a closed configuration and an open configuration.

A drive source switching system for a marine propulsion device includes a first drive source, a second drive source, a propeller shaft, a first driving member, a second driving member, a first driven member, and a second driven member that are movable in an axial direction of the propeller shaft, and a controller. The first driven member transmits a drive force generated by the first drive source to the propeller shaft when engaged with the first driving member. The second driven member transmits a drive force generated by the second drive source to the propeller shaft when engaged with the second driving member. When the controller moves the first driven member that is not engaged with the first driving member toward the first driving member, the controller moves the first driven member back when the first driven member fails to be engaged with the first driving member.

A device for coupling a propulsor to a marine vessel. A rail is configured for attachment to the marine vessel. A carriage is moveable relative to the rail into first and second positions. A shaft has a first end pivotally coupled to the marine vessel and a second end for coupling to the propulsor. An actuator is configured to pivot the shaft relative to the marine vessel to thereby move the propulsor into and between stowed and deployed positions. A lock is manually operable to fix the carriage in the first position in which the actuator prevents manual pivoting of the shaft and alternatively in the second position in which the shaft is permitted to be manually pivoted.

Methods and systems described herein can assist a user when loading a watercraft onto a trailer (e.g., at a boat ramp). For example, position data generated by sensor(s) coupled to the watercraft and/or trailer can cause one or more propulsion devices associated with the watercraft to automatically (e.g., without user intervention) position the watercraft onto the trailer, for example, by controlling the power and/or thrust direction of the propulsion device(s).