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pany's Naval shipbuilding prod- uct line. He will serve as the com- pany's primary interface with the Navy for sales activity for new construction, overhaul and refueling, and design/engineering services. He joined Newport News Ship- building as an electrician's helper in 1942 and subsequently gradu- ated from the shipyard's Ap- prentice School in hull design in 1951. In his 35 years with the ship- yard, he has held a variety of increasingly responsible positions, including senior designer, junior design supervisor, senior design supervisor, program manager for nuclear cruisers, senior program manager for cruisers, senior li- aison manager for cruisers and design manager. A native of Hot Springs, Va., Mr. Tidd is a member of the Navy League, National Security Industrial Association, serving on the Surface Ships Subcommittee, and The Propeller Club. Gulf's Oil Recovery Vessel For Bantry Bay, Ireland Built In Rhode Island By Blount Marine With its bow secured, the 100-ton Bay Skimmer cruises at better than 9 knots on Narrangansett Bay. It carries a crane amidships to pick debris from its oil collection tank and to allow it to dou- ble as a general supply and patrol craft in Bantry Bay, Ireland. Gulf Oil Corporation has ac- quired a newly developed oil re- covery vessel for its deepwater oil terminal in Bantry Bay, Ire- land. Besides requiring a highly effective oil recovery unit, Gulf also required a ship to patrol the waters near Whiddy Island, where the terminal is located, and peri- odically to patrol the full length of Bantry Bay, a round trip of about 50 miles. The vessel, christened the Bay Skimmer, is a fully equipped, 68-foot, 100-ton ship designed to patrol at speeds up to 9 knots and to recover oil up to 3 knots. The vessel, custom built for Gulf Oil use, is the prototype of a deepwater class of oil cleanup vessels that use a skimmer prin- cipal developed by JBF Scientific Corporation in Wilmington, Mass. Built by Blount Marine Corpo- ration, Warren, R.I., the Bay Skimmer was designed by Ralph A. Bianchi, president of JBF Sci- entific Corporation. Mr. Bianchi has designs for skimmer vessels up to 160 feet in length, and he believes that a skimmer that large could effectively clean up an Argo Merchant spill. Because there are no drydock- ing or heavy-lift facilities within a convenient distance of the ter- minal, the hull of the vessel was designed so that it may be beached in the event that repair or main- tenance work must be done below the waterline. The Bay Skimmer utilizes the Dynamic Inclined Plane (DIP) Recovery System, collecting oil by forcing it under the surface of the water. Oil follows the sur- face of the moving inclined plane to a collection well underneath the unit. Buoyant forces cause the oil to naturally separate in the well, where it forms a deep oil pocket. Water-free oil is pumped from the top of the well to stor- age. A double-chined displacement hull, powered with a twin propul- sion system, provides high cruis- ing speeds and excellent seakeep- ing characteristics. The bow is arranged to be opened during oil recovery operations and closed while transiting or operating as a workboat and supply vessel. The first of this class vessel was launched in January of 1977. For literature completely de- scribing the JBF DIP OIL Re- covery Systems, write to Mr. Bianchi at JBF Scientific Corpo- ration, 2 Jewel Drive, Wilming- ton, Mass. 01887. Tidd Named Manager Naval Ship Marketing For Newport News Ship Sidney M. Tidd Sidney M. Tidd has been ap- pointed manager of Naval ship marketing and sales for New- port News Shipbuilding, Newport News, Va. Mr. Tidd will be responsible for identifying and developing Naval ship markets and for coordinating and directing overall marketing and sales activities for the com- There is a big difference in Marine Sewage Systems ENVIROVAC is the quality leader. o © Colt Industries Water and Waste Management Operation bottom plate collection zone The heart of the skimmer system is this dynamic inclined plane. Oil is pushed beneath the conveyor belt and back into a collection hold, where it separates from water. The belt moves faster than the for- ward speed of the vessel to prevent oil from backing up at the bow. 10 Maritime Reporter/Engineering News toilets... special bowl design that provides clean and thorough flushes with only three pints of water... and its highly efficient, trouble-free vacuum system. All controls and the discharge valve are also easily accessible with- out dismantling toilet. Get the big quality dif- ference story on ENVIROVAC Vacuum Sewage Systems, today. 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