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Tankships for construction of up to five Ingram Class product car- riers. NASSCO has received firm commitments for two of these vessels. American Tankships still has the right under the contract to cancel any of the remaining three vessels up to stated dates between now and June 1982. The vessels will incorporate the most modern equipment available and will meet the latest safety and environmental protection standards, including double bot- toms, a clean segregated ballast system, an inert gas system, a sewage treatment plant, collision- avoidance radar, and a backup steering system. Bryant Named Manager Of McGraw-Edison's New Marine Marketing Dept. A J Fred G. Bryant The Service Group of McGraw- Edison Company recently an- nounced the establishment of its Marine Marketing Department with headquarters in Fairfield, N.J. McGraw-Edison Service is a new force in the marine equip- ment repair field, combining the mechanical repair capabilities of Worthington Service with the electric repair capabilities of Na- tional Electric Coil. The Service Group maintains service shops in many major cit- ies with particular marine loca- tions in Seattle, Portland, San Francisco, La Mirada, Calif., Baton Rouge, Fort Lauderdale, Charlotte, N.C., Philadelphia, Bal- timore, Fairfield, N.J., and Bos- ton. The service centers spe- cialize in the repair of marine mechanical equipment such as pumps, compressors, turbines, heat exchangers, and valves, and electrical equipment such as mo- tors, generators, and controllers. Fred G. Bryant has been ap- pointed manager of marine mar- keting with offices in Fairfield. He started his career with Worth- ington Corporation in 1951 as a design engineer. Prior to his re- cent appointment with McGraw- Edison Service, he had been a sales engineer and manager of Navy prime contract sales with Worthington Pump Corporation. Three New Technical Reports Available From Ship Structure Committee The Ship Structure Committee, an Interagency Advisory Commit- tee dedicated to improving the structure of ships, has recently published three new technical re- ports that are available free of charge. SSC-297, "Evaluation of Liquid Dynamic Loads in Slack LNG Cargo Tanks," presents a review of worldwide scale model sloshing data and reduces the data to a common format for the purpose of design load coefficients. Addi- tional scale model laboratory ex- periments have been conducted to supplement the available model sloshing data. SSC-298, "Investigation of Steels for Improved Weldability in Ship Construction—Phase 1," is the initial effort of an ongoing project to minimize heat affected zone and weld-metal property de- gradation for high deposition rate welding. Two production steels and 20 laboratory heats of steels of various chemical compositions have been recommended for fur- ther examination. SSC-299, "Ultimate Strength of a Ship's Hull Girder in Plastic and Buckling Modes," analyzes limiting conditions beyond which a ship's hull girder will fail to perform its function. Vertical and lateral bending moments and tor- sional moments are used to devel- op a procedure for estimating the ultimate capacity of the hull. For copies of these reports, an index of past reports, or further information, contact: Secretary, Ship Structure Committee, U.S. Coast Guard Headquarters, G- MMT/13, Washington, D.C. 20593. G€T FCDCRAL HCLP TO SAVC CNCRGY! With fuel supplies costly and uncertain, you have to do everything you can to save energy, because your efforts can mean the difference between profit and loss. That's why, to get maximum propeller efficiency, you should get with Federal. Federal propellers are designed and carefully manufactured to the most exact- ing standards. We offer a FREE engineer- ing service that assures the exact prop installation to best suit your engine, hull and use requirement. As a result, you get the most from every drop of fuel and prolong the life of a properly maintained power plant, as well. Power Thrust® is a workboat propeller designed to reduce vibration ... a difficult problem on many workboats. Correctly fitted, it can result in much smoother operation when it replaces a 3-blade wheel. Designed with thick cross sections and heavy-duty blade edges, Power Thrust resists abuse to save you costly haul-outs and downtime. Power Thrust is available in sizes through 96" dia. in alloys such as Federal's "B" bronze and super tough Ni-Bral. Stainless steel alloyed to No. 316 specifi- cations is available through 72" diameters. DUCTCD PROPCLLCR SYSTCM It's even more energy efficient and worth your serious consideration. A Federal 4-blade Kaplan style propeller is mated to the Michigan® manufactured nozzle. Engineered by Federal, a ducted propeller system can give you: 1. the same thrust with less power for greater fuel economy; or 2. more thrust with the same power... for more towline, or bollard pull. Federal's consulting engineers will analyze your hull, power plant and work requirement to provide you with an expert recommendation . . . absolutely FREE. Ask for a FREE Analysis Form now. Contact Federal Propellers, 1521 Buchanan Ave., Grand Rapids, MI 49507. FEDERAL (OPELLERS PROPELI Michigan Wheel Division Dana Corporation June 15, 1981 Write 210 on Reader Service Card 1 1
