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 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.

An outboard motor includes an outboard motor body, a mount mounted on a boat body, and a support member that supports the outboard motor body so as to be steerable with respect to the mount. The support member includes an upper support that surrounds a drive shaft and supports the outboard motor body, a lower support that is spaced below the upper support, surrounds the drive shaft, and supports the outboard motor body, and a coupler that couples the upper support to the lower support.

An outboard motor includes an outboard motor body, a mount mounted on a boat body, and a support member that supports the outboard motor body so as to be steerable with respect to the mount. The support member includes an upper support that surrounds a drive shaft and supports the outboard motor body, a lower support that is spaced below the upper support, surrounds the drive shaft, and supports the outboard motor body, and a coupler that couples the upper support to the lower support.

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 vertically adjustable jack plate configured to attach an outboard motor (or analogous device) to the transom of a marine vessel. A transom bracket is provided for connection to the vessel. A motor mounting plate is connected to the transom bracket. An electrical lift jack vertically adjusts the position of the motor mounting plate with respect to the transom bracket. The electrical lift jack is powered by a rechargeable battery that is preferably attached and detached from a controller housing. A separate remote control is provided to control the operation of the jack plate.

An outboard motor cooling induction system. A pickup assembly is attached to a boat's transom proximate the keel. An uptake hose from this pickup assembly carries cooling intake water to one or more inlets on the outboard motor's lower unit. An intake plane is provided on the pickup assembly. This intake plane is preferably positioned so that the intake flow is optimized.

System and methods are provided that relate to a drive arrangement for propelling a boat, in particular a kayak. In some embodiments, the drive arrangement can include an electric drive motor with a shaft and a receiving device for receiving the shaft. An arresting element can be provided for determining a first desired distance along the shaft between the receiving device and the drive motor.

A jack plate has an assembly having a motor plate configured to support an outboard motor, and having a hull mount configured to mount to a boat hull such that the jack plate assembly has an adjusting bolt that when rotated raises the motor plate in relation to the position of the assembly on the hull.

A control system for an outboard motor is provided which enables safe navigation over a shoal. A control system for an outboard motor including a propeller includes: a trim angle adjustment motor for changing the attitude of the outboard motor with respect to a watercraft; and a controller configured to selectively implement first control that operates the trim angle adjustment motor and controls the vertical position of the propeller to a first position, and second control that operates the trim angle adjustment motor and controls the vertical position of the propeller to a second position closer to a water surface than the first position. The controller acquires information on the depth of water a predetermined distance ahead in the travel direction of the watercraft, and determines which of the first control and the second control is implemented, on the basis of at least the information on the depth of water.