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 (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 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 large ship having a hull about 100 meters or more in length, so that the ship is suited for transoceanic traffic, with a narrow wedge-like bow and the broadest part of the underwater hull being located amidships, includes at least one steerable rudder propeller device at the forebody of the ship. The steerable rudder propeller device(s) at the forebody of the ship substantially provide(s) the steering and control of the ship and produce(s) a part of the propulsive force pushing the ship forward at least substantially within all speed ranges. In harbour manoeuvering, the steerable rudder propeller device(s) at the forebody of the ship provide(s), as needed, at least about 20% of the ship's total propulsive power. When steering ahead in sea traffic, the steerable rudder propeller device(s) at the forebody of the ship provide(s) at most about 10% of the ship's total propulsive power.

Abstract: The present invention relates to a steering and propulsion arrangement in a large ship suited for transoceanic traffic, which arrangement comprises a number of propulsion devices situated partly at the rear and partly at the forebody of the ship. The forebody of the ship is provided with one or more steerable rudder propeller devices, which are arranged so as to substantially provide the steering and control of the ship, to produce a substantial part of the propulsive force pushing the ship forward at least substantially within all speed ranges, and in addition, arranged so that they do not extend, at least not significantly, below the base line of the ship.

Abstract: A barge transport system comprises one or several barges and at least one powered push vessel connectable to each of said barges for the transport thereof by pushing. The push vessel as well as each of the barges are provided with means for connecting the push vessel rigidly to a selected barge. The connecting means comprise connection members in the front portion of the push vessel as well as in its stern portion. The connection members in the stern portion of the push vessel are movable in the transverse direction of the push vessel into a mechanically positively locking connection position. The connection members and their counterparts are formed to exert a wedge effect on the connection, thereby minimizing any movement inducing connection clearance between the push vessel and the associated barge.

Abstract: A big passenger ship having passenger cabins as well as general purpose spaces and service rooms. The ship is divided into an upper part and a lower part of which the lower part extends up to the uppermost deck reaching all over the hull of the ship. The lower part is at least substantially free from passenger cabins and least substantially all of the passenger cabins are in the form of outside cabins located to a multifloor unit forming the upper part of the ship. This unit is considerably narrower than the lower part of the ship and is constructed according to the rules applicable to constructions above the uppermost through-going deck of a ship.

Abstract: The invention relates to a method for building a passenger section consisting of several cabin units (7) or similar in the superstructure of a ship with several floor levels located above the actual hull on the topmost deck (1) covering the entire hull of the ship. The passenger section is assembled by installing prefabricated cabin units (7) with a bottom construction embodying sufficient local strength so, that they are supported by at least one self-supporting three-dimensional latticework or frame consisting of braced girders (3, 3', 4, 5) or similar, the requisite overall strength of the superstructure being substantially based on this latticework or frame.

Abstract: The invention relates to a ship that is adapted for operating in ice-filled waters and has a general frame form defining a substantially horizontal bottom surface, two side surfaces, a stern and a blow portion that breaks the ice advantageously. The bottom surface comprises one or a greater number of cavities, extending to or located on both sides of the longitudinal symmetry plane of the ship, in which cavity or cavities there are arranged movable sheetlike elements. The sheetlike elements have a first position, in which said elements form a generally continuous part of the bottom surface, and a second position, in which said elements form, below the bottom surface, a substantially vertical wedge-shaped structure that converges in the direction from the stern of the hull towards the bow of the hull. The elements are provided with power units which bring about movement of the elements from one position to another by turning around a swivelling axis arranged in the longitudinal direction of the elements.