The present invention relates to a drive arrangement (10) for driving and steering a boat (1), comprising an electric drive motor (14) having a shaft (14a) and receiving element (12), receivable in or on a hull (3) of the boat (1), for receiving the shaft (14a), wherein the shaft (14a) is pivotably or rotatably mounted in the receiving element (12) in a position of the receiving element (12) to be arranged outside the boat hull (3).

A dual drive system for providing motive power to a watercraft has a frame configured for connecting to the watercraft and a drive assembly connected to the frame. The drive assembly has a manual drive mechanism configured for receiving mechanical input from a user, a motor drive mechanism configured for receiving mechanical input from a motor, a driveshaft having a first end in selective engagement with one of the manual drive mechanism and the motor drive mechanism and a second end in engagement with a propeller, and a drive selector for selectively engaging the manual drive mechanism or the motor drive mechanism with the driveshaft based on a position of the drive selector between first and second positions. In the first position, the drive selector engages the manual drive mechanism with a driveshaft. In the second position, the drive selector engages the motor drive mechanism with the driveshaft.

A dual drive system for providing motive power to a watercraft has a frame configured for connecting to the watercraft and a drive assembly connected to the frame. The drive assembly has a manual drive mechanism configured for receiving mechanical input from a user, a motor drive mechanism configured for receiving mechanical input from a motor, a driveshaft having a first end in selective engagement with one of the manual drive mechanism and the motor drive mechanism and a second end in engagement with a propeller, and a drive selector for selectively engaging the manual drive mechanism or the motor drive mechanism with the driveshaft based on a position of the drive selector between first and second positions. In the first position, the drive selector engages the manual drive mechanism with a driveshaft. In the second position, the drive selector engages the motor drive mechanism with the driveshaft.

A boat having a transom and a rear platform extending at least partially across the transom. The rear platform includes a hatch defining at least partially the rear platform, the hatch having a bottom surface, and a hatch pivot for pivoting the hatch about a hatch pivot axis from a first hatch position to a second hatch position. The boat is free of an enclosed engine compartment. The hatch at least partially defines thereunder a space for receiving a marine outboard engine. The space extends rearwardly of the transom and is open at a rear of the boat.

A boat having a transom and a rear platform extending at least partially across the transom. The rear platform includes a hatch defining at least partially the rear platform, the hatch having a bottom surface, and a hatch pivot for pivoting the hatch about a hatch pivot axis from a first hatch position to a second hatch position. The boat is free of an enclosed engine compartment. The hatch at least partially defines thereunder a space for receiving a marine outboard engine. The space extends rearwardly of the transom and is open at a rear of the boat.

A sealing arrangement is used when mounting a thruster in a well box attached to a hull of a marine vessel. The well box has an axis, a bottom flange, a top flange, an annular wall therebetween and hoisting pipes fastened parallel with the axis to the bottom flange radially outside the annular wall. Both the well box and a mounting flange have at least one surface acting as a sealing surface between the well box and the thruster. At least one of the surfaces has a groove for a seal for preventing water from entering the well box. The well box has a rotationally symmetric wall with an internal guide surface and the mounting flange of the thruster has an axially extending rotationally symmetric part provided with an outer surface having means for sealing the mounting flange in relation to the well box.

A sealing arrangement is used when mounting a thruster in a well box attached to a hull of a marine vessel. The well box has an axis, a bottom flange, a top flange, an annular wall therebetween and hoisting pipes fastened parallel with the axis to the bottom flange radially outside the annular wall. Both the well box and a mounting flange have at least one surface acting as a sealing surface between the well box and the thruster. At least one of the surfaces has a groove for a seal for preventing water from entering the well box. The well box has a rotationally symmetric wall with an internal guide surface and the mounting flange of the thruster has an axially extending rotationally symmetric part provided with an outer surface having means for sealing the mounting flange in relation to the well box.

In at least some embodiments, the invention is directed to a watercraft that includes a selectively attachable motor mount.

In at least some embodiments, the invention is directed to a watercraft that includes a selectively attachable motor mount.

A dual drive system for providing motive power to a watercraft has a frame configured for connecting to the watercraft and a drive assembly connected to the frame. The drive assembly has a manual drive mechanism configured for receiving mechanical input from a user, a motor drive mechanism configured for receiving mechanical input from a motor, a driveshaft having a first end in selective engagement with one of the manual drive mechanism and the motor drive mechanism and a second end in engagement with a propeller, and a drive selector for selectively engaging the manual drive mechanism or the motor drive mechanism with the driveshaft based on a position of the drive selector between first and second positions. In the first position, the drive selector engages the manual drive mechanism with a driveshaft. In the second position, the drive selector engages the motor drive mechanism with the driveshaft.