Abstract: A propulsion system (102) for an aquatic vessel (100) is provided. The propulsion system includes a plurality of Magnus-type rotors (108) and a drive arrangement (147) for rotating the plurality of Magnus-type rotors. The plurality of Magnus-type rotors are operable to rotate about corresponding substantially upright axes. The propulsion system also includes a control arrangement (150) for controlling the drive arrangement to vary rates of rotations of the plurality of Magnus-type rotors. Each of the plurality of Magnus-type rotors includes a hollow region (116) therein. Each of the Magnus-type rotors is rotationally supported onto a support arrangement (118) which extends into the hollow region. The drive arrangement includes at least one motor (148) disposed in the hollow region and located outside the support arrangement such that the at least one motor is accessible for maintenance.

Abstract: A propulsion system for an aquatic vessel is provided. The propulsion system includes a plurality of Magnus-type rotors and a drive arrangement for rotating the plurality of Magnus-type rotors. The plurality of Magnus-type rotors are operable to rotate about corresponding substantially upright axes. The propulsion system also includes a control arrangement for receiving one or more measured apparent wind speeds and for controlling the drive arrangement to vary rates of rotations of the plurality of Magnus-type rotors. The rates of rotations may, for example, be varied as functions of the measured apparent wind speeds and a direction of travel of the aquatic vessel. Moreover, the control arrangement includes a user-operable control for adjusting propulsion provided by the plurality of Magnus-type rotors. The control arrangement is operable to control the drive arrangement to vary a drive applied to rotate one or more Magnus-type rotors from the plurality of Magnus-type rotors.

Abstract: A propulsion system (102) for an aquatic vessel (100) is provided. The propulsion system includes a plurality of Magnus-type rotors (108) and a drive arrangement (147) for rotating the plurality of Magnus-type rotors. The plurality of Magnus-type rotors are operable to rotate about corresponding substantially upright axes. The propulsion system also includes a control arrangement (150) for controlling the drive arrangement to vary rates of rotations of the plurality of Magnus-type rotors. Each of the plurality of Magnus-type rotors includes a hollow region (116) therein. Each of the Magnus-type rotors is rotationally supported onto a support arrangement (118) which extends into the hollow region. The drive arrangement includes at least one motor (148) disposed in the hollow region and located outside the support arrangement such that the at least one motor is accessible for maintenance.

Abstract: A propulsion system for an aquatic vessel is provided. The propulsion system includes one or more Magnus-type rotors that are operable to rotate about their respective substantially upright axes. The propulsion system also includes a drive arrangement for rotating the Magnus-type rotors, and a control arrangement for receiving one or more measured apparent wind speeds and for controlling the drive arrangement to vary a rate of rotations of each of the Magnus-type rotors, for example, as a function of the measured apparent wind speeds. Moreover, the control arrangement is additionally provided in operation with future route information for the aquatic vessel, together with weather forecast information for use in controlling the drive arrangement for improving propulsion provided by the Magnus-type rotors.

Abstract: A propulsion system for an aquatic vessel is provided. The propulsion system includes a plurality of Magnus-type rotors and a drive arrangement for rotating the plurality of Magnus-type rotors. The plurality of Magnus-type rotors are operable to rotate about corresponding substantially upright axes. The propulsion system also includes a control arrangement for receiving one or more measured apparent wind speeds and for controlling the drive arrangement to vary rates of rotations of the plurality of Magnus-type rotors. The rates of rotations may, for example, be varied as functions of the measured apparent wind speeds and a direction of travel of the aquatic vessel. Moreover, the control arrangement includes a user-operable control for adjusting propulsion provided by the plurality of Magnus-type rotors. The control arrangement is operable to control the drive arrangement to vary a drive applied to rotate one or more Magnus-type rotors from the plurality of Magnus-type rotors.

Abstract: A propulsion system for an aquatic vessel is provided. The propulsion system includes one or more Magnus-type rotors that are operable to rotate about their respective substantially upright axes. The propulsion system also includes a drive arrangement for rotating the Magnus-type rotors, and a control arrangement for receiving one or more measured apparent wind speeds and for controlling the drive arrangement to vary a rate of rotations of each of the Magnus-type rotors, for example, as a function of the measured apparent wind speeds. Moreover, the control arrangement is additionally provided in operation with future route information for the aquatic vessel, together with weather forecast information for use in controlling the drive arrangement for improving propulsion provided by the Magnus-type rotors.