Abstract: The invention relates to vessel (1) comprising a hull (3) and a deck (2), a substantially cylindrical rotor (6) having a peripheral wall (8) rotatable with respect to the deck (2) around a longitudinal center line (20), the rotor (6) being mounted on the deck (2) in such a manner that in an operational state the rotor (6) is substantially vertically oriented, characterized in that a flap (18) is arranged near the rotor (6) extending substantially in a plane which is parallel to the rotational axis of the rotor (6), and the length of the flap chord (Rfc) is between 20%-90% of the rotor (6) diameter (Dr), wherein the position of the flap (18) can be adjusted with reference to the longitudinal center line (20).

Abstract: The invention relates to vessel (1) comprising a hull (3) and a deck (2), a substantially cylindrical rotor (6) having a peripheral wall (8) rotatable with respect to the deck (2) around a longitudinal center line (20), the rotor (6) being mounted on the deck (2) in such a manner that in an operational state the rotor (6) is substantially vertically oriented, characterized in that a flap (18) is arranged near the rotor (6) extending substantially in a plane which is parallel to the rotational axis of the rotor (6), and the length of the flap chord (Rfc) is between 20%-90% of the rotor (6) diameter (Dr), wherein the position of the flap (18) can be adjusted with reference to the longitudinal center line (20).

Abstract: A vessel includes a hull, a propeller for propulsion of the vessel and at least one rotatable cylinder which in its operational state is vertically mounted on the vessel, the cylinder having a rigid outer surface, a motor drive for rotating the cylinder around a longitudinal axis and a displacement member for displacing the cylinder to an inoperational position, wherein the motor drive is situated inside the cylinder.

Abstract: A vessel includes a hull and a deck, a substantially cylindrical rotor having a peripheral wall rotatable with respect to the deck around a longitudinal center line, the rotor being at a lower end connected to the deck and including an upper end plate, the rotor being mounted on the deck in such a manner that in an operational state the rotor is substantially vertically oriented and in an inoperational state the upper end plate is situated in the vicinity of the deck, the end plate extending transversely to the longitudinal center line, wherein the end plate is provided with movable edge segments that in the operational state of the rotor extend radially outwardly from the peripheral wall to an extended position and in the inoperational state of the rotor are moved to a retracted position that is situated closer to the peripheral wall than the extended position.

Abstract: A vessel includes a hull, a propeller for propulsion of the vessel and at least one rotatable cylinder which in its operational state is vertically mounted on the vessel, the cylinder having a rigid outer surface, a motor drive for rotating the cylinder around a longitudinal axis and a displacement member for displacing the cylinder to an inoperational position, wherein the motor drive is situated inside the cylinder.

Abstract: A vessel includes a hull and a deck, a substantially cylindrical rotor having a peripheral wall rotatable with respect to the deck around a longitudinal center line, the rotor being at a lower end connected to the deck and including an upper end plate, the rotor being mounted on the deck in such a manner that in an operational state the rotor is substantially vertically oriented and in an inoperational state the upper end plate is situated in the vicinity of the deck, the end plate extending transversely to the longitudinal center line, wherein the end plate is provided with movable edge segments that in the operational state of the rotor extend radially outwardly from the peripheral wall to an extended position and in the inoperational state of the rotor are moved to a retracted position that is situated closer to the peripheral wall than the extended position.

Abstract: A vessel (1) comprising a hull (2) with a stern (5), bow (7) and bottom (3), an air cavity (6) formed at the bottom (3) of the hull (2) and comprising a cavity top surface (27), a front wall (28) and a front section (10) located nearest to the bow (7), and an air inlet (8) located in the air cavity (6), wherein the vessel comprises a wave deflector (9) defining a lower surface (11) which is situated in the front section (10) of the air cavity (6) and at a distance from the cavity top surface (27) and extends from the front wall (28) substantially in the direction of the stern (5).

Abstract: A vessel (1) comprising a hull (2) with a stern (5), bow (7) and bottom (3), an air cavity (6) formed at the bottom (3) of the hull (2) and comprising a cavity top surface (27), a front wall (28) and a front section (10) located nearest to the bow (7), and an air inlet (8) located in the air cavity (6), wherein the vessel comprises a wave deflector (9) defining a lower surface (11) which is situated in the front section (10) of the air cavity (6) and at a distance from the cavity top surface (27) and extends from the front wall (28) substantially in the direction of the stern (5).