The system fitted to the Royal Navy Hunt Class Mine Counter Measures Vessels was first seen on HMS Shoulton and it's successful operation confirmed it's inclusion in the MCMV. The complete system supplied by Parkburn Precision Handling Systems comprises winch modules, sea water pump and valve actuators for the bowthruster system, slow speed drive hydraulic motors, standby hydraulic pump modules, engine driven pumps and associated system selector valves. Winch Modules All our winch module variants, mechanical, magnetic and acoustic, are built for high shock resistance and low magnetic signature. The company's years of experience have enabled it to give an important lead in this highly specialised field.
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Mechanical Sweep Winch The mechanical sweep winch is a non-magnetic, triple drum hydraulic winch with two warp ends, and provides support for the magnetic buoyant support roller and lead on gear to the magnetic sweep winch. The purpose of the mechanical sweep winch is to veer, haul, tow and reel the port and starboard sweep wires and/or kite wire during mechanical/acoustic sweeping operations.		Mechanical Sweep Winch
Magnetic Sweep Winch Magnetic Sweep Winch The purpose of the magnetic sweep winch is to veer, tow and haul the electric buoyant cable during magnetic minesweeping operations and carry the cable when it is stowed. The magnetic sweep winch is a non-magnetic, single drum hydraulic winch which is designed to handle a buoyant cable. The drum is driven by a hydraulic motor through triple reduction gearing, consisting of a primary gearbox, external pinion, idler and main gearwheel and an epicyclic gearbox and clutch. Hydraulic and mechanical braking is provided to hold the drum when it is not rotating and controls for winch operation are provided on a console mounted on the port aft side of the winch. A slip-ring assembly fitted at the non-drive end of the drum provides a continuous monitoring facility for checking the buoyant cable insulation resistance and continuity.		Acoustic Sweep Winch Acoustic Sweep Winch The purpose of the acoustic sweep winch is to veer, tow and haul the towed acoustic generator (TAG), which is attached to an electric strain cable, during acoustic minesweeping operations, and also provide stowage for the cable on completion. The acoustic sweep winch is a non-magnetic, single drum hydraulic winch and provides support for its own cable lead-on gear. The drum is driven by a hydraulic motor through triple reduction gearing, consisting of a primary gearbox, external pinion, idler and main gearwheel and an epicyclic gearbox and clutch. A hydro-mechanical and a mechanical brake are provided to hold the drum when it is not rotating. Controls for speed and direction, clutch and braking are provided on a console mounted on the forward side of the winch. Lead-on gear at the aft end of the winch ensures that the cable is correctly spooled on to the drum, and a plug and socket device, operated by a hand lever, connects or disconnects the cable to the Ship’s electrical supply.
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