Abstract: An improved boat thruster including a diverter valve having an inlet connected to a water pump and a pair of outlets extending to either side of the boat. Each outlet includes a primary nozzle and a deflector movable to a first position wherein it allows water flow from the primary nozzle to be discharged to one side to thus thrust the boat to the opposite side. Each deflector is also movable to second and third positions for directing the primary nozzle water flow to respective secondary nozzles for discharging the water either forwardly or rearwardly to thus thrust the boat in the opposite direction. The secondary nozzles each have an exit area smaller than that of the primary nozzle.

Abstract: An improved bow thruster including a diverter valve with an inlet connected to a water pump, a pair of outlets extending to either side of the boat, a valve mechanism for accurately controlling the amount of thrust obtained from both outlets, and a deflector positioned at each outlet. Each deflector is movable between a first position wherein it allows sideward water discharge to thrust the bow to the side, and a second position wherein it directs water rearwardly to move the boat in a forward direction, or if required, to a third position to move the boat rearwardly.

Abstract: This invention provides a system for maintaining hoses and mooring lines extending outwardly from a single buoy mooring terminal, in a desired direction. Also provided is an arrangement for directing the mooring line and hose to move to a ship.