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New Navy Tugs Fitted With PSI Steering Systems Pilothouse of the YTB-803 class tugs fea- tures a control console containing all ma- neuvering control and navigation compo- nents. The PSI electric steering control stand with 40-inch wheel is located at the center of the console. Auxiliary non-follow- up steering control levers are mounted at each side of the console. Thirteen of the Navy's newest YTB class harbor tugs (YTB 803- 815) are being fitted with electro- hydraulic steering systems furnish- ed by Propulsion Systems, Inc. of Port Washington, N.Y. The tugs are being built by Peterson Build- ers, Inc. of Sturgeon Bay, Wis. YTB 803-808 are now in service at various Navy facilities. The steering system is of the PSI RATE-CONN® design, pro- viding slow and fast rates of rud- der motion, depending upon the ordered change in rudder angle. This feature permits smooth steer- ing in normal running and quick rudder response for fast maneuver- ing. Electric full-follow-up and non-follow-up steering control is provided from the pilothouse and aft deck control stations. A 15-hp motor-driven dual-rate main hy- draulic power unit is the primary power source for the steering gear, while a smaller 2-hp motor-driven single-rate power unit is furnished as an auxiliary back-up unit. The rudder is actuated by a pair of 4- inch bore clevis-mounted hydraulic cylinders linked to the rudder stock by a yoke assembly. U.S. Shipbuilding Technology Geared To Ocean Transport The technical skills and know- how of American shipbuilders, which today are being used to build the world's most sophisticated ships for the U.S. Navy, will be employed in the construction of merchant ships under the Merchant Marine Act of 1970, Edwin M. Hood, president of the Shipbuild- ers Council of America, stated in a speech before the National Trans- portation Institute meeting held in Chicago on February 4. Mr. Hood said that there is a notion that the United States is "technologically bankrupt or at best technologically backward" as concerns ships for the American merchant marine. In rebuttal, he pointed out that the containeriza- tion concept in ocean shipping was begun in America starting as far back as 1929. The new Lighter Aboard Ship (LASH) and the so- called Sea Barge vessels were not- ed as dramatic American techno- logical developments. He also spoke of the progress made by American naval architects and engineers in automation, gas turbine propulsion, improved steam turbine engines, palletization, and roll-on/roll-off techniques, for commercial ship ap- plication. Mr. Hood said America seems to be ahead of other shipbuilding na- tions in the development of tug- barge systems for ocean shipping, and that the possibilities of an Marine representative for Norriseal Butterfly Valves; dis- tributors for Universal Electric Motors, ILG Fans and Blow- ers, Hunter Fans and Heaters, and many other products. articulated ship and catamaran hulls are being explored. He de- cried the failure of nuclear power in merchant ships to be accepted, though the United States built and operated the N/S Savannah to il- lustrate how atomic power could be used for peaceful purposes. "The shipbuilding industry in the United States possesses a flexibility of capacity and a range of capabili- ties which can truly move ahead with transport technology," said Mr. Hood, but he cautioned, "labor stability, reliability of service and investor interest will, in the final analysis, compose the future of the American-flag shipping fleet." American shipbuilders "look for- ward to working with our custom- ers in the development and market- ing of transportation systems which, among other things, will re- store the United States as a first- rate maritime power," Mr. Hood told his audience. o MERRIN ELECTRII w For prompt and efficient service, call MERRIN ELECTRIC DIVISION OF S.P.E.C. 162 Chambers Street, New York, N.Y. 10007 • 212/267-8166 performance The Tug BART J. TURECAMO is equipped with two 4 blade stainless steel Coolidge propellers. The Coolidge Propeller Company, organized in 1910, has through sixty years of continuous service designed and produced quality propellers for every application. The development of special patented production equip- ment and measuring devices, designed solely for marine propellers, together with constant research in both en- gineering and materials, have made Coolidge Propellers the accepted standard worldwide. COOLIDGE PROPELLER COMPANY 1608 Fairview Ave. E. Seattle, Washington 98102 Phone 206 EAst 5-5100 We repair ships the same way we build them...precisely LSCC has built many military vessels including amphibious assault ships and destroyer-escort types, requiring facilities and capabilities for sophisticated and precision construction. Many of these same facilities are used in our Ship Repair Division, which can handle anything from wood hulls to hydrofoils. LSCC combines tradition and technology to provide you with the finest repairs in the least time at a most reasonable cost—"right now" when you need it. We give 'round-the-clock service if required, so when you need ship repairs, call us. SHIPBUILDING AND CONSTRUCTION COMPANY 2929 16th AVE. S.W., SEATTLE, WASH. 98134 PHONE 206-623-2072 • CABLE L0CKSHIP NEW YORK REPRESENTATIVE: James R. Porter 17 Battery Place, New York, N.Y. 10004 • Phone 212-943-8795 3 floating drydocks • to 18,000 tons THE ONE-STOP CENTER for /roSy Westinghouse Steam and Electrical Equipment STEAM TURBINE PARTS MOTORS CONTROLLERS SWITCHBOARDS WELDERS WINCH CONTROLS Specializing in DC Equipment March 1, 1971 35
