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The ship-handling tug Charles H. Cates X features a hull of all-welded steel, double-chime form, with transverse fram- ing, which is unique to the Cates fleet. The hull form was developed jointly by the company and naval architect Rob- ert Allan Ltd. Allied Shipbuilders Delivers Caterpillar-Powered Tug Allied Shipbuilders, Ltd., North Vancouver, B.C., Canada, recently delivered the 57-foot 8- inch shiphandling tug Charles H. Cates X to C.H. Cates & Sons Ltd., North Vancouver, B.C. Based on a design by Vancouver-based naval architecture and marine engineering firm Rob- ert Allan Ltd., the Charles H. Cates X has a molded breadth of 24 feet 2 inches, depth of 9 feet 9 inches and extreme draft of 10 feet. Her propulsion machinery consists of two high-speed Caterpillar 3508 TA main diesel engines, each rated at 650 bhp at 1,600 rpm, coupled to 360-degree azimuthing drives through a 1.1 ratio gear/clutch assembly. The For all Marine Fixed Ballast Operations Densities to 450 + pcf (S.G. 7.2+) • Safe • Quick • Non-Shifting • Pre-mixed installation . Removable GENSTAR Genstar Stone Products Company Executive Plaza IV. Hunt Valley, MD 21031 USA (301) 682-5982 or 682-5985 FACS No. 3016826256 drive shafts contain flexible coupling elements at the input to the Niigata model ZP-56 Z- drives, and the gear reduction of 378 rpm at the propellers are achieved within the Z-drive units themselves. Electric power for the winch drive, steering unit control and all shipboard services is pro- vided by a pair of 95 kw, 230/3/60 AC genera- tors. Mitsubishi 6D16-T auxiliary engines each drive a Simpower B254C alternator. The winch drive and Z-drive steering motors are controlled by Mechtronics 59000 series fre- quency modulating motor drives, to achieve a full range of variable speed control from the AC power supply. The ship-handling operations of the Charles H. Cates X are carried out from the fore deck, utilizing a single-drum variable speed electric- driven line-handling Burrard Iron Works winch. The Burrard winch stores a 400-foot 2-1/2-inch- diameter Round Plait Polyester Samson Braid towing line. The all-steel Cates X will operate in Vancou- ver Harbor providing ship assist services. CHARLES H.CATES X Equipment List Main engines (2) Caterpillar Z-drives Niigata Auxiliary engines (2) Mitsubishi Alternators Simpower Controls Mechtronics Radar Racal-Decca VHF radiotelephones Raytheon Echo sounder Datamarine Intercom Regency Line-handling winch Burrard Iron Works Towing line Samson Braid JIM'S PUMP REPAIR INC. f ||B 48-55 36 St. ril L.I. City, NY 11101 • JIM LAGONIKOS, BOB MOONEY, President Sales & Service Manager Reconditioned Coffin & Pacific Pumps A-1 Conditon TYPE • F-CG - DE - DEB - IND -T- DEB-22 TBA • 12 -16 - I6V2 Service 24 HRS • Parts Available TEL 718-392-4444 TLX-TWX FAX 718-482-8372 710-5824847 JPRNYK For free literature detailing the boatbuilding services of Allied Shipbuilders, Circle 75 on Reader Service Card For literature completely de- scribing the naval architecture and marine engineering services of Rob- ert Allan Ltd., Circle 76 on Reader Service Card Bestway Systems Develops Ship-Based Computer Systems For Private/Commercial Sectors Bestway Systems, Inc. has developed ship- based computer systems for both the private and commercial sectors. A special chassis has been hardened to withstand abnormal tempera- ture, humidity, dust, vibration and shock ex- tremes. Based on Interactive's UNIX/ix, the platform is mated with fiber optic terminals, bringing EGA capability to all users, whether business or scientifically oriented. The chassis, a standard 19-inch rack mount, is combined with a likewise mounted computer- ized UPS system which interacts directly with the operating system. Communication with land-based hosts is achieved over modems via satellite link. Up to 12 users per node are possi- ble, with multiple nodes in a TCP/IP network. Targeted for private yachts 100 feet and greater, and commercial vessels, the systems are expected to be available in the second quarter. For more information and free literature from Bestway Systems, Circle 58 on Reader Service Card PETTI BONE PETTIBONE-TIFFIN CORP. SUPPLIERS OF REPAIR PARTS FOR PETTIBONE HYDRAULIC TRUCK CRANES, MARINE CRANES AND ROUGH TERRAIN CRANES. CALL US FOR THE NAME OF THE DEALER IN YOUR AREA THAT SUPPLIES GENUINE PETTIBONE REPLACEMENT PARTS. 235 Miami St. Tiffin, Ohio 44883 419-447-6545 Circle 283 on Reader Service Card How to Guard a Battleship Against Corrosion c^Qciuord Finn Marine Paints Dafanso Coalings 4030 Seaguard Avenue Portsmouth, VA 23701 (804) 488-4411 Guns won't guard a battleship from corrosion or fouling. Your only defense is several mils of coating ... so you need the best you can buy. At Seaguard, our motto for 25 years has been Consistency. Depend- ability. Quality. Three things we think are vital for a government specification coatings supplier. Seaguard brings these things to you with every can of paint. On every order. With experts to assist with your every coating need. We're a one-source supplier for Navy, Defense, or industrial requirements and are listed on more QPL's than virtually any other supplier. For your free brochure or additional information, write or call. 20 Circle 252 on Reader Service Card Circle 332 on Reader Service Card Circle 340 on Reader Service Card Maritime Reporter/Engineering News
