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UUNU1M » ACW/SM I 3BB£ srsr • USCG approved (161.010/6/0) S O L A S. Reg 21F, 1960, 1974 • Waterproof, weatherproof, shock resistant • Automatic operation • No tools required to change battery • Patented bracket included (non corrosive, non magnetic construction) • 360 lens for horizon-to - horizon coverage ACR ELECTRONICS, INC. 3901 North 29th Avenue Hollywood, Fl. 33020 (305) 921-6262 Booklet Shows Foreign Flag Vessels Owned By U.S. Parent Companies The Maritime Administration has released a report on 677 foreign-flag oceangoing merchant- type ships of 1,000 gross tons and over owned by United States par- ent companies located and incor- porated in the United States, either by direct ownership or through foreign subsidiary com- panies. Prepared by MarAd's Of- fice of Subsidy Administration, the report contains information as of December 31, 1976. "Foreign Flag Merchant Ships Owned by U.S. Parent Compa- nies" can be purchased through the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. (Stock No. 003- 007-00086-3). Mar Ad Releases Ocean Thermal Energy Conversion Report The Maritime Administration has released a technical report which discusses the maritime and construction aspects of Ocean Thermal Energy Conversion (OT- EC) plant ships as a promising means of helping alleviate na- tional energy problems, contrib- uting to a more favorable balance of payments, and providing new employment opportunities in the maritime and related industries. A tropical-grazing OTEC plant ship would use the temperature difference between the warm sur- face waters near the equator and the colder waters one-half mile below to drive a heat engine to produce electric power that would be converted into an energy- intensive product aboard ship. The study, performed by the Johns Hopkins University Ap- plied Physics Laboratory, indi- cates that OTEC offers greater promise than fossil and nuclear power, and recommends that high priority be placed on the develop- ment of OTEC plant ships. The report, "Investment in Commercial Development of Ocean Thermal Energy Conversion (OT- EC) Plant Ships," is available from the National Technical In- formation Service, 5285 Port Roy- al Road, Springfield, Va. 22161. The order number is PB 280922/ AS, and the price is $8. TOUGH an<' flHUHIM* less BEARINGS BTR Silverline Water-lubricated Bearings are uniquely precision bored to maintain a 0.001 inch water clearance per inch of shaft diameter — the closest tolerances ir. the marine industry; and, con- sequently, they are more vibration- free than other water-lubricated bearings on the market. Another outstanding characteristic of the BTR Silverline Bearing is its Hydro- dynamic Waterwedge Design which maximizes water lubrication and virtually eliminates shaft wear from heat, sand and other waterborne abrasives. The sea's a tough place to make a living - you know it and we know rt - that's why all BTR Silverline Bearings are built tough with a precision machined length and diameter to match or retro-fit any other sleeve or flange brand on the market — including metric & fiber casings. Write or call today for complete information. _ — 0 Exclusive U.S. Distributors CORPORATION 216 N. Main St., Freeport, N.Y. 11520 (516) 378-0470 Precision Propulsion for the Marine Industry Since 1901 Propellers - Bearings - Shaft Line Equipment - Hydraulic Controls Remember when coupling considerations dictated where you had to locate your transmitter? EN 400 Transmitter FORGET IT. The EN 400 SSB radiophone needs no external coupling. Electro-Nav 1201 Corbin Street, Elizabeth Marine Terminal, Elizabeth, NJ 07201 (201)527-0099 750 Kennedy Street. Oakland. CA 94606 (415) 533-1840 MARITIME REPORTER ENGINEERING NEWS 107 EAST 31st STREET NEW YORK, N.Y. 10016 (212) 689-3266, 3267, 3268, 3269 ESTABLISHED 1939 Maritime Reporter/Engineering News is published the 1st and 15th of each month by Maritime Activity Reports, Inc. Controlled Circulation postage paid at Waterbury, Connecticut 06701. Postmaster send notification (Form 3579) regarding undeliver- able magazines to Maritime Reporter/Engineering News, 107 East 31st Street, New York, N.Y. 10016. Member BPA Business Publications Audit of Circulation, Inc. No. 13 Volume 40 14 Maritime Reporter/Engineering News
