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Two Brochures Available On Sperry's Doppler Speed, Navigation Systems Two brochures on two distinct doppler systems have been pub- lished recently by Sperry Marine Systems, Great Neck, N.Y. One brochure concerns Sperry's Doppler Speed Log which meas- ures speed and distance move- ments. The eight-page brochure describes the special features of the system—its components, in- stallation planning data, specifi- cations, and cabling. The system can be used with advanced radar, navigation, and computer sys- tems either for new building or retrofitting. The second eight-page brochure provides similar technical infor- mation on Sperry's Doppler Nav- igation Sonar (DNS). The DNS is a high-technology navigation system designed for use as a bot- tom and or water reference nav- igator for submersibles and sur- face vessels. Used in conjunction with a compass or gyrocompass, it provides the operator with pri- mary navigation data including desired course set by the navi- gator, distances on course and across course, total speed, devi- ation from the desired course, al- titude above the ocean floor, and compass heading. For a free copy of the bro- chures, Write 16 on Reader Service Card SNAME Requests Technical Papers For 1982 Annual The Society of Naval Archi- tects and Marine Engineers (SNAME) has issued a call for technical papers to be delivered at the 1982 meeting to lie held November 18-20—its 90th meet- ing. The papers are selected for ap- peal to the broadest, most tech- nically sophisticated audience possible. Members and nonmem- bers are encouraged to prepare proposals on any topic of inter- est to the marine field. Papers concerned with recreational boat- ing or marine engineering are especially welcome. SNAME has requested that a 400- to 500-word abstract, plus a tentative outline, be sent to headquarters at One World Trade Center, Suite 1369, New York, N.Y. 10048, by October 31. The Papers Committee will review the proposals by December 1981 and will ask selected authors to pre- pare a finished manuscript by April of 1982. Five Executive Promotions Announced At Perko Five promotions, including the appointment of an executive vice president and two new vice pres- idents, have been announced at Perko, Inc., Miami, Fla., manu- facturer of marine lights, hard- ware, and accessories. The announcement was made recently by Marvin S. Perkins, president. Leroy F. Hollenbeck. formerly vice president, has been appointed executive vice president. He will continue to oversee manufactur- ing activities, but will also lie responsible for additional man- agement functions. Mr. Hollen- beck has been with Perko ap- proximately 22 years. Allen W. Matthews Jr., vice president of sales, becomes vice president of marketing. John P. Rush, sales manager, was pro- moted to assistant vice president of marketing. Additionally, Mike Angelone has been named vice president of data processing, and K. Timothy LePage has been named vice pres- ident of purchasing. SEA CUSHIONS.R The tough foam filled fenders with the soft touch. Whether you're a vessel owner or a terminal operator, you need a fender that's not only tough, but soft enough to cushion and absorb the high energy impact of ~ - 77 ' - ship to ship transfer or ship to quay > U* » UJ * Ci,-> • . K. . linn berthing without hull damage or over- ly ;i: • r J a | loading of dock structures. That fender „;; , . , 1 is appropriately named SEA CUSHION. —' - & i: And it's tough because we make it that way It's unsinkable even if punctured, It's abrasion-resistant and extremely durable, because of its rugged elastomer skin, So if you have the need for some tough protection with a soft touch, SEA CUSHION is it. Sizes available for fishing vessels to ULCC's. For more information contact our Corporate Office, 6269 Leesburg Pike, Falls Church, VA, 22044 USA, (703) 534-3500, New York Office, 127 East 59th Street, SEAWARD New York, NY 10022 USA, (212) 688-0620, 14 Write 142 on Reader Service Card Maritime Reporter/Engineering News
