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The twin-screw, 360°-rotating-nozzle, ship-docking tug Sally is powered by two G.M. Detroit Diesel Allison engines rated 900 shp at 2,400. Powerful Docking Tug Delivered By Gladding-Hearn Shipbuilding Gladding-Hearn Shipbuilding of Somerset, Mass., recently launched the twin-screw ship- docking tug Sally for delivery to Wilmington Tug and Launch, Inc. of Wilmington, Del. The tug is powered by two G.M. Detroit Die- sel Allison 12V-149TI engines rated 900 shp at 2,400. She has an overall length of 70 feet, beam on deck of 30 feet and draft of 12 feet 6 inches. Described as having "the power of a bulldozer and the maneuverability of a sports car," the Sally will handle vessels with deadweights any- where from 50,000 to 125,000 tons. Like her sister boat Tina, delivered in 1977, she does not employ a conventional rudder with fixed propellers. Rather, she has a pair of inde- pendent, high-thrust, fully rotatable propulsion/ steering units that can be operated individually or together in any direction to put maximum power exactly where it is needed. The Sally's pilothouse, high above the deck, offers unobstructed views in all directions. The helm station features dual unilever-type con- trols and a functional console with all necessary instrumentation. The tug is fitted with 12-inch bow and 16-inch aft towing bitts, two 40-ton hand-operated barge winches, and a hydraulic vertical capstan which is incorporated into the aft towing bitt. She is capable of a bollard pull of some 80,000 pounds. Schuyler 6-inch and 11- inch fendering borders the deck edge, and 9- inch-thick fendering provides gripping action during ship-handling operations. For ease of service and maintenance, the Ulstein angle drive units, including propellers and Kort nozzles, can be lifted through deck hatches without drydocking the vessel. Crew's quarters, directly below the pilot- Main engines G.M. Detroit Diesel Allison Generator set . . . . Volvo Penta/Lima; Carey's Diesel Propellers Ulstein Maritime Steering Ulstein Maritime Controls Ulstein Maritime Compass Ritchi Radar Raytheon VHF radios Raytheo Depthsounders Raytheo Horn Buell Bilge pumps Jabsco Anchor Danforth Battery charger Professional Mariner Searchlight Phoenix Navigation lights Aqua-Signal Wipers American Bosch Fendering Schuyler Mufflers Cow house, include a two-man stateroom on the star- board side, a fully equipped gallery with a spa- cious dining area portside, and a toilet and shower compartment. For more information and free literature on the facilities and capabilities of Gladding-Hearn Shipbuilding, Circle 48 on Reader Service Card Soundcoat Offers Free Technical Paper On Vibration Damping For Shipboard Vibration Frank Kirschner, vice president of engi- neering of the Soundcoat Company, Deer Park, N.Y., recently presented a paper titled "Vibra- tion Damping for Shipboard Vibration and Noise Control" to the Institute of Noise Control Engineering (INCE). The technical paper describes in detail the noise and vibration problems on a gas turbine- powered tanker and research vessel. For exam- ple, the major noise source in the gas turbine- powered tanker was transmission of structure- borne vibration from the gas turbine generator room to the living quarters through the deck plates and bulkheads and reradiation of air- borne sound from these plates. To obtain a free copy of the paper from Soundcoat, Circle 54 on Reader Service Card Q.E.D. SYSTEM S. IIXJCZ: VIRGINIA BEACH (804) 490-5000 MMEINQIWEEFSi iAVAL ARCHITECT! EMiEERS ARLINGTON BREMERTON JACKSONVILLE SAN DIEGO PHILADELPHIA LAKEHURST CHARLESTON SAN FRANCISCO IV1. ROSENBLATT & SON, IIMC- NAVAL ARCHITECTS AND m MARINE ENGINEERS MS New York City 350 Broadway New York, NY 10013 (212) 431-6900 Boston Philadelphia Washington. D C Newport News Charleston Norfolk San Francisco 657 Mission Street San Francisco CA 94105 (415) 777-0500 Bremerton San Diego Honolulu Oxnard M. ROSENBLATT & SON. INC. Quality Management, Training, Support, ILS, and Marine Engineering Services 23 Locations Worldwide SYSTEMS ENGINEERING ASSOCIATES CORPORATION 520 FELLOWSHIP ROAD, SUITE C-306 MT. LAUREL, NEW JERSEY 08054 (609) 8SG-2400 SEACOR is a Subsidiary of Day & Zimmermann, Inc. SARGENT & HERKES, INC.. NAVAL ARCHITECTS • MARINE ENGINEERS 1005 INTERNATIONAL BLDG., 611 CRAVIER ST Nl W ORLEANS, LA 701 K) (504) 524-1612 OK OFFICER IRSES USCG approved - RADAR OBSERVER COURSE USCG approvod - FIREFIGHTING SCHOOL Also USCG Exam Prip Courses tor CAPTAIN. MASTER. AB. ENGINEER, QME0 LE1-800-BEST-ONE s Marine Engineers and Naval Architects P O. Box 3311 Essex. CT 06426 P O Box 205 Solomons, MD 20688 Telex: 517931 Seaworthysys 17 Battery PI N.Y., N.Y. 10004 2 Skyline Place /Suite .311 Falls Church, VA 22041 GEORGE G. SHARP, INC. MARINE ENGINEERS NAVAL ARCHITECTS SYSTEMS ANALYSTS MARINE SURVEYORS 100 Church Street New York, N. Y. 10007 (212) 732-2800 Virginia Beach, Va. 23462 (804) 499-4125 Arlington, Virginia 22202 (703) 892-4000 Voorhees, N. J. 08043 (609) 772-0888 89 T.UI. 5PRETGEI1S TORSIONAL VIBRATION SPECIALISTS OUR 40TH YEAR SERVING INTERNATIONAL CLIENTS 156 W. 8th Ave. (604) 879-2974 Vancouver. Canada V5Y 1N2 Telex 0455188 R.A. STEARN INC. NAVAL ARCHITECTS and MARINE ENGINEERS 253 N. 1st Avenue Sturgeon Bay, Wl 54235 Phone (414) 743-8282 TLX 753166, ESL 62388810 STURGEON BAY MODEL SHOP SHIP MODELS SINCE 1941 Wm. L. Herbst 187 N. Ninth Ave. Sturgeon Bay. Wl 54235 DISPLAY & DESIGN MODELS phone 4I4/B94-2859 4I4/743-2921 414/744 3091 Trans-International Marine Services Corp. T I M S C O MAINTENANCE MONITORING SYSTEMS INVENTORY CONTROL SYSTEMS P.O. Box 91360 Mobile, Alabama 36691 205/666-7121 " Tracor Hydronautics- INTEGRATED ENGINEERING SERVICES FOR THE MARINE INDUSTRY RESEARCH • DEVELOPMENT DESIGN • TESTING HYDRONAUTICS SHIP MODEL BASIN Tracor Hydronautics 7210 Pindell School Road Laurel, Maryland 20707 Telephone: (301) 776-7454 Telex: 8-7585 UIBRANALYSIS ENGINEERING CORP • PREDICTIVE MAINTENANCE PROGRAMS • VIBRATION ANALYSIS • FIELD & SHOP BALANCE • ACOUSTICAL CONSULTANTS • COMPUTERIZED DATA COLLECTION • MARINE APPLICATIONS VIBRANALYSIS ENGINEERING CORP 4380 S. Wayside, Suite 100 Houston. TX 77087 713-643-1051 WELDING CONSULTANTS USA 6517 RADBURN. GREENDALE, Wl (414) 421-3252 ST. PETERSBURG. FL. HOUSTON, TX. PROVIDING WELDING ENGINEERING SERVICES TO SHIPS, MACHINERY, HULL, MARINE STRUCTURAL DE- SIGNS, ALTERATION, REPAIRS, CONVERSIONS AND UNDER-WATER STRUCTURES. THOMAS B. WILSON ASSOCIATES NAVAL ARCHITECTS & MARINE ENGINEERS 1258 N. AVALON BLVD. • WILMINGTON, CA. 90744 PHONE (213) 518-0940 January, 1988 63
