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$2.34-Million Navy Contract Awarded To Sperry Division The U.S. Naval Sea Systems Command has awarded the Sperry Division of Sperry Corporation a $2.34-million contract to develop and produce an advanced velocity measuring system for Navy sub- marines. These new systems, called Dop- pler Sonar Velocity Logs (DSVL), will be produced and delivered to the Navy in 1981 for testing. Ve- locity logs are used to measure ship's speed through water as well as the ship's speed over the sea bottom, and to provide data for navigation and fire control solutions. The Sperry DSVL will use ad- vanced doppler sonar coupled with data enhancement to provide high- er accuracy and greater reliabil- ity than existing electromagnetic and pitometer log equipment, which is now used by the Navy to measure velocity. The DSVL will provide velocity measure- ment in all three axes of the vessel. Morton J. Howard, Sperry's marketing manager for the proj- ect, said that Sperry plans to adapt this new velocity log for use on military surface ships. Coastal Awarded Navy Overhaul Contract For $18.5 Million Coastal Dry Dock and Repair Corporation, Brooklyn, has been awarded an $18,467,148 fixed-price contract for the regularly sched- uled overhaul of the USS Mil- waukee (AOR-2). The Supervisor of Shipbuilding, Conversion and Repair, USN, N.Y., is the con- tracting activity. (N62794-70-C- 0010) Literature Available On National Marine Service Master Clock System A marine digital master clock system that displays master and local time is now available from National Marine Service for all vessels. Master time can be Green- wich Mean or home port time, while local time is ship's time. The system also has an auto- matic digital calendar that pro- vides serial time information for data and bell logging or other processing equipment. Microproc- essor-based, solid-state electron- ics assure that the system is maintenance-free. And because of a locking panel, the master clock system is free from unauthorized time changes. The digital display automatically dims at night ac- cording to the pre-set intensity level of the dimmer control. An unlimited number of remote units can be installed up to 2,000 feet distant. The clock system comes in free-standing or flush- mounted models. And should a ship's power fail, battery backup powers the system for 24 hours. More information may be ob- tained by writing to Charles L. Thompson, Products Division, Dept. MR, National Marine Serv- ice Incorporated, 827 Hanley In- dustrial Court, St. Louis, Mo. 63144. Contract To Sembawang From Union Oil For Living Quarters Unit Sembawang Engineering, Sing- apore, has won a multimillion- dollar contract for the procure- ment, fabrication, loadout, and transportation of a living quar- ters unit for Union Oil Company of Thailand. The unit is a four-story module with rooftop helideck, and will be fabricated as a single structure that will provide accommodation, recreation, and amenity facilities for 120 persons in the Gulf of Thailand. This unit will be the ninth liv- ing quarters structure to be built by Sembawang Engineering; it is scheduled to be completed in March 1981. on nson DURAMAX Rubber Bow Fenders help give this vessel service versatility n The R&L No. 1 is designed with the kind of versatility that makes her both a rugged working tug as well as an efficient supply vessel. The R&L No. 1 was built by Hike Metal Products Ltd., Wheatley, Ontario for Wakeman & Son., Ltd., Hamilton, Ontario, Canada. The 92 foot tug with its kort nozzles has an output of 1570 horsepower. On her bow, more than a hundred lineal feet of shock absorbing Duramax Rubber rectangular "D" shaped tendering provides major protection when engaged in lake freighter berthing operations. The bow is strengthened for working in ice, contributing to the vessel's year 'round oper- ational capabilities. Whether you're building or operating work vessels or fish boats, tugs or dredges, you can rely on Johnson Duramax Marine Products—known the world over for quality and performance reliability. Duramax Rubber Fendering for docks and vessels are available in several styles ranging from the popular rec- tangular "D", Round and Square Types to the Wing and Fan Nose Types. "Donut" type rubber bumpers which can be mounted on roller shaft or chain mounted offer harbor tugs excellent protective cushioning during berthing and docking operations. Write or Call for Data on Bearings, Stuffing Boxes, Keel Coolers and Rubber Fendering. DURAMAX MARINE division of The Johnson Rubber Company ®T M Reg PRINTED IN USA 6-2008-280 Middlefield, Ohio 44062 U.S.A. Area Code: 216/632-1611 TWX: 810-427-2960 / Telex: 98-0416 / Cable: "DURAMAX" Dependable Products For Ships Throughout The World 32 ZIDELL Maritime Reporter/Engineering News
