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(mmcj LUBE OIL You expect a Lube Oil Clarifi- f er-Coalescer to run thousands of hours without b I e mainte- nance. MMC's coalescers do < just that. That's because a Lube ^^ M|, ^^ Oil Clarifier-Co- alescer is on^y as good as its least depend- able part. Therefore, we supply only the best components. MMC's simplicity of design cou- pled with built-in safety features guarantees maximum performance, low maintenance and the most economical unit of its type in the world. Free literature available on request, please write: MARINE MOISTURE CONTROL CO., INC. 449 Sheridan Boulevard, Inwood, New York 11696 (212) 327-3430 Cable address: MAMCAF INWOODNASSAUCONY TELEX. 12-6577 MAMCAF Replace the standard 3-blade propeller on your work boat with Federal's "Power Thrust" and you can expect more power and much smoother operation. In a size for size exchange, "Power Thrust" offers better maneuvering and handling characteristics, reduced engine wear and greater fuel economy. The heavy duty construction of this exceptional propeller was engineered for cutting through mud and debris with- out damage. Costly haul outs and down- time are practically eliminated, especially if you order your "Power Thrust" in super strong Ni-Bral. Available in all alloys through 96". If you're concerned with eco- nomical, efficient operation, more power to you. See your marine dealer about Federal or contact Federal Propellers, Grand Rapids, Michigan 49502. Prudential-Grace Lines Names Frank Harlocker To Executive Post Frank R. Harlocker Frank R. Harlocker has been ap- pointed executive vice president for traffic and sales at Prudential- Grace Lines, Inc., it was announced by Spyros S. Skouras Jr., chief ex- ecutive officer of the line. Mr. Har- locker will also be a member of the firm's executive committee. He will report to A.T. de Smedt, presi- dent of Prudential-Grace Lines. Prior to his new appointment, Mr. Harlocker was president, chief executive officer and a board mem- ber at American Union Transport Forwarding, Inc. He was previous- ly president and a director of Acme Fast Freight, Inc., and president, chief executive officer and a direc- tor at D.C. Andrews & Company. Mr. Harlocker is presently a direc- tor of the Maritime Association, Port Of New York. T.J. Stevenson Appoints Maldonado The appointment of Ralph Mal- donado as assistant vice president for T.J. Stevenson & Co., Inc., has been announced by the company. The firm was recently named as general agents in the United States for the independent Korean-flag express liner service of the Korea Shipping Corp., Ltd., Which oper- ates between the United States and Korea and Japan. In his new post, Mr. Maldonado will be responsible for the develop- ment and operation of KSC's serv- ices and vessels. 32 Maritime Reporter/Engineering News Second, to test the marine fire re- sistance of aluminum fuel tanks, the Aluminum Association retained Trop- ical Marine Testers, Inc. in North Palm Beach, Fla., to conduct a fire test as specified in Standard E-3 of the Marine Department, Underwrit- ers Laboratories (formerly Yacht Safety Bureau). The standard requires that a test tank filled to one-quarter capacity with gasoline be subjected to a spe- cific temperature range during a 2 y2 minute test sequence. The tank is suspended over a pan of flaming gaso- line. A temperature sensor located one inch from the bottom of the tank must indicate a temperature in the 950°F-1450°F range after 45 seconds of test. Within 75 seconds, the sensor must indicate a tempera- ture between 1250°F and 1550°F, and continue within this range for an additional 75 seconds. The test 'fuel 'tank fabricated with Y\ -inch marine aluminum alloy suc- cessfully survived the test procedure intact. U.S. Coast Guard approval of the use of independent marine fuel tanks fabricated with J-^-inch marine alu- minum alloy applies to all commercial boats, including offshore crew and supply boats. The Coast Guard regulations au- thorizing the use of these aluminum fuel tanks are scheduled to be pub- lished later this year in the Federal Register. IE MOVES ALL FREE WATER, SLUDGE & SOLIDS WITHOUT ANY PS MOVING IRTS Independent Aluminum Marine Fuel Tanks Approved By USCG The Marine Safety Council of the United States Coast Guard has ap- proved the use of independent alu- minum marine fuel tanks for com- mercial service. The Coast Guard's authorization covers fuel tanks fab- ricated with 34~inch Type 5086 alu- minum alloy and other alloys accept- able to the commandant. To qualify for Coast Guard ap- proval of their commercial use, the aluminum marine fuel tanks were determined to be corrosion resistant in a marine atmosphere. The following steps were taken to qualify the aluminum alloy for Coast Guard approval: First, the Aluminum Association supplied the Coast Guard with docu- mented, historical evidence of alumi- num's ability to resist corrosion. The documentation included written testi- mony of individual boat owners over the last two decades. More power to you*
