Page 24: of Maritime Reporter Magazine (July 2002)

Navy

Munson Delivers Boats to Navy

The Naval Facilities Engineering Command recent- ly took delivery of two 30 x 10-ft. (9.1 x 3-m) PACK-

CAT catamaran landing craft designed and built by the

William E. Munson Co. Developed for the NAVFAC

Oil Spill Response Program, each vessel is outfitted with twin 200 hp Mercury outboards, providing a 45 mph response speed. Additional outfitting includes a 5 x 5-ft. wheelhouse elevated for maximum visibility, cargo deck tie down rails, 3-in. D guard rubber, 200 gallon fuel system, towing package, work light pack- age, VHF, GPS, and depth sounder.

The standard 74-in. wide bow door, large self-bailing cargo deck and 5,000 lb. cargo capacity and provide unlimited versatility. The PACKCAT's patented tunnel hull catamaran design incorporates twin 16 degree V hulls providing increased stability, superb rough water performance and shallow draft.

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U.K. Royal Navy Increases Over- haul Efficiency of HP Air Cylinders

The U.K. Royal Navy, Marine Fluid Power Fire

Fighting & Mechanical Handling Integrated Project

Team (MFFMIPT) Submarine Division, implemented a tailor made version of the recently launched portable

Valve Seat Lathe, type VSL, from Swedish manufac- turers Chris-Marine. As a result, the MFFMIPT claims to have saved both time and substantial costs when overhauling HP air cylinders installed on submarines.

Instead of the standard designed angular cut used on valve seats, the VSL was produced to operate in a hor- izontal plane, with a present maximum diameter of 200 mm. Additionally, the cutting tip passed over flange stud holes without damage, and with a tool feed of 0.075 mm/rev, a surface finish of 0.5Ra was achieved.

Finally, a shorter headroom version was required, able to fit into the narrow access between bulk-heads, decks and other obstructions. This was made possible by introducing a right-angle gearbox which maintained the same ease of mounting, whilst stability was unaf- fected by the "off-center" drive. This new flange facing version of the VSL can now be utilized on the HP air bottles without need for the bottles to be removed from the vessel, thus providing savings in time and money.

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PATENTED SYSTEM » Kinetic Converter takes input shaft energy and produces usable hydraulic energy by the use of a mixed flow impeller. . Steering Vanes continu- ously meter or proportion a percentage of the fluid flow to one or both sides of the vessel. • Nozzles accelerate the mass of water creating a thrust force at the hull interface. ^Mixed-Flow Impeller . Thrust Directors (optional) deflect the water flow forward or aft producing slow speed auxiliary propulsion. . Electronic Control System controls the 360° thrust vector resultant from a fixed or variable speed prime mover rotating continuously in one direction. . There are no rotating parts that have to be stopped or f started as thrust direction and/or magnitude changes. 4 " 4

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K S 30555 Solan Industrial Parkway • Cleveland, OH 44139 440 542-9200 www.nmnithruster.cnm

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Circle 245 on Reader Service Card or visit www.maritimereporterinfo.com 24 Maritime Reporter & Engineering News