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P.S.I. TUNNEL THRUSTERS Isn't side thrustjust as important The key is performance, reliable as fore/aft thrust when docking, operation, easeof installation, low close quarter maneuvering or sta- maintenance and long life—Every- tion keeping? Every skipper who thing that P.S.I. Tunnel Thrusters usesathrusterwill agree—there's possess—AND HERETHEY ARE: nothin' like 'em! l/WMPSI pROpULSION SYSTEMS, INC. 1 21213-76th Ave. S.. Kent, WA98032 Phone(206)872-8850 Telex: 32-9657 DECK MACHINERY • CP PROPELLERS • THRUSTERS • STEERING GEAR • CONTROLS • SYSTEM ENGINEERING • TRAINING • SERVICE Circle 243 on Reader Service Card Circle 239 on Reader Service Card Maritime Reporter/Engineering News Shaver Transportation Company of Portland, Ore., kept the 149.5 gtd tug Columbia in the Stork-Werk- spoor family when it repowered the vessel to keep pace with the ever larger ships at the Port of Port- land. The firm replaced two RHO 218K SWDiesel engines, each developing 700 hp at 720 rpm, with two 1983- model 6FHD 240 six-cylinder Stork- Werkspoor engines. These engines deliver a total of 2,540 hp at 900 rpm in the 96-foot vessel. The engines were sold by SWDie- sel Gulf, Inc., the U.S. subsidiary of the Dutch diesel company through the West Coast office recently es- tablished by Charles Garman in Seattle, Wash. Mike Boschero, Shaver port engineer, estimated that the Colum- bia's original Stork engines—one of the few installations of the Dutch diesel on the Columbia/Snake River system for the last 15 years—had operated for some 75,000 to 80,000 hours. For more information about in- stalling Stork-Werkspoor engines in new vessels or using the engines for repowering with fuel efficient plants, Circle 58 on Reader Service Card Cruise Control for under $7,500 Tracor Instruments Tracor Instruments Austin, Inc. 6500 Tracor Lane Austin, Texas 78725 Telephone 512: 929 2051 "See us at Booth #106 at Fish Expo '84" GEARED MECHANICAL THRUSTERS MODELS Three tunnnel diameters of 36 inch, 48 inch and 56 inch. Rated at 200/300,300/450 and 500/ 600 horsepower. Input R.P.M.—as required from 900. GEARLESS HYDRAULIC MINI-THRUSTERS® Cast steel or aluminum construction. Four tunnel dia- meters of 10 inch, 12 inch, 16 inch and 24 inch, rated at 15-25: 28-36: 42-56: 69-112 horsepower. FM 36 FM 48 FM 56 MODELS MT-10 MT-12 MT-16 MT-24 FOR MORE INFORMATION CALL OR WRITE: First Of Ten Sister Log Carriers Delivered By Mitsui's Tamano Yard A Mitsui integrated duct propel- ler improves propulsion efficiency and reduces fuel costs. Self-polish- ing antifouling coating on the hull provides long-term surface smooth- ness and results in further fuel sav- ings. Bunkering to the double-bottom fuel oil tank is achieved through a gravity process utilizing a deep fuel tank on the starboard side of the engine room. This effectively pre- vents overflow from the air pipe of the double bottom fuel tank. Electronics include a collision- avoidance unit and a satellite com- munications system. The Sanko Stork has an overall length of 600 feet, beam of 100 feet, depth of 52 feet, and full-load draft of 36 feet. Cargo hold capacity (grain) is 51,026 cubic meters. With Stork-Werkspoor Diesels The 96-foot tug Columbia shown above was doubled in horsepower with the installation of two new 1,270-hp Stork-Werkspoor engines. Shaver Re-Engines Tug Columbia Designed for transport of logs, the 41,545-dwt bulk carrier Sanko Stork (shown below) was delivered recent- ly by the Tamano yard of Mitsui Engineering & Shipbuilding Com- pany (MES) to the Jade Corpora- tion of Liberia for charter to Sanko Line. She is the first of 10 sister ships ordered from MES by the same owner, and incorporates many energy-saving features, including the fuel-efficient Mitsui/B&W 6L60MCE diesel main engine with a maximum continuous output of 8,420 bhp at 102 rpm. Maximum trial speed was 15.67 knots. Four 25-ton cranes serve the five cargo holds, which are fitted with electrohydraulic, folding-type hatch covers that provide large hatch openings to facilitate cargo han- dling. A cargo loading computer provides calculation of the trim and stresses on the hull. You can't always depend on the stars to see you safely across the oceans. That's why more and more captains rely on Tracor Global Navigation Systems. Our integrated Bridgestar/Omega Navigator keeps you on course with precise position fixes from Transit satellites — continuously updated by Omega station signals. In addition, there's a complete route planning func- tion, distance and bearing to 15 waypoints and the unique "Sleep Mode" feature that cuts power consumption to the absolute minimum. Tracor navigation systems have a proven record of per- formance and reliability and they are backed by an exper- ienced sales/service dealer network with over 200 loca- tions worldwide. Call us to- day for a free GNS brochure and the name of your nearest representative.
