Abstract: Retractable thruster system for moving a thruster (1) on a vessel between an extended position, in which the thruster (1) is extended below a hull's bottom, and at least one retracted position, in which the thruster is located above the hull's bottom, the system comprising a canister (2) to which a thruster is mountable, wherein the canister is configured to be movable in a trunk (3) in a vessel's hull structure between said extended position and said at least one retracted position, and in which a rack-and-pinion lifting system is arranged to move the canister (3) in said trunk (3) between said extended position and said at least one retracted position, the lifting system including at least one rack (6) being fixedly connected to the vessel, and a pinion drive (7) including at least one pinion (8) arranged to cooperate with said at least one rack (6), said pinion drive being connected to the canister (2).

Abstract: Retractable thruster system for moving a thruster (1) on a vessel between an extended position, in which the thruster (1) is extended below a hull's bottom, and at least one retracted position, in which the thruster is located above the hull's bottom, the system comprising a canister (2) to which a thruster is mountable, wherein the canister is configured to be movable in a trunk (3) in a vessel's hull structure between said extended position and said at least one retracted position, and in which a rack-and-pinion lifting system is arranged to move the canister (3) in said trunk (3) between said extended position and said at least one retracted position, the lifting system including at least one rack (6) being fixedly connected to the vessel, and a pinion drive (7) including at least one pinion (8) arranged to cooperate with said at least one rack (6), said pinion drive being connected to the canister (2).

Abstract: A traction system (11; 60) for operating lines (18), in particular mooring lines and/or riser lines, of a vessel (1), includes at least two work stations (26) distributed along at least two sides of the vessel (1) and engaged by respective operating lines (18). The traction system includes a main traction device (14; 15, 17; 15A, 17) and a transmission device (36) having a duty line (28) connected to the main traction device and at least one guide member (24) for selectively routing the duty line (18) to each work station (26) for attachment to a respective operating line (18). A line storing space (22; 42, 44) is provided for storing parts of the duty line and/or hauled in moorings lines; the main traction device, the transmission device and the line storing space are placed together at or near a side of the floating production unit.

Abstract: A traction system (11; 60) for operating lines (18), in particular mooring lines and/or riser lines, of a vessel (1), includes at least two work stations (26) distributed along at least two sides of the vessel (1) and engaged by respective operating lines (18). The traction system includes a main traction device (14; 15, 17; 15A, 17) and a transmission device (36) having a duty line (28) connected to the main traction device and at least one guide member (24) for selectively routing the duty line (18) to each work station (26) for attachment to a respective operating line (18). A line storing space (22; 42, 44) is provided for storing parts of the duty line and/or hauled in moorings lines; the main traction device, the transmission device and the line storing space are placed together at or near a side of the floating production unit.