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ARCTEC Participates In Icebreaking Tests ARCTEC, Incorporated, Bowie, Md. 20715, a firm specializing in cold regions transportation tech- nology, and Teledyne Materials Research have been awarded a con- tract by the U.S. Coast Guard to perform a full scale evaluation of the icebreaking qualities of the Coast Guard's lake icebreaker Mackinaw this winter. - Rod Edwards Jr., research vice president of ARCTEC, Incorporat- ed and technical director for the Mackinaw tests, said that the full scale experiments aboard the USCGC Mackinaw will be designed to determine the resistance of the triple-screw icebreaker in ice and the structural loads on the hull which arise during operations in ice. Mr. Edwards explained that one of the most important results of the study would be a quantita- tive evaluation of the effectiveness of the Mackinaw's bow propeller in improving the icebreaking effi- ciency of the ship. The USCGC Mackinaw has been equipped by Teledyne, ARCTEC, and the U.S. Coast Guard's Office of Research and Development with an instrumentation system which will measure and record the thrust, torque, and rpm of all three pro- peller shafts, the ship's speed rela- tive to the ice, hull motions, and the strains in a portion of the bow structure estimated by ARC- TEC's engineers to be the location of the highest expected ice loads. The Mackinaw evaluation proj- ect is part of a program which has been undertaken by the Depart- ment of Transportation and other Government agencies to determine the technical and economic feasi- bility of extended and all-season navigation on the Great Lakes. Dravo Corp. Appoints Niland B. Mortimer Niland B. Mortimer Niland B. Mortimer has been named manager of marine and sys- tems sales for the Engineering Works Division of Dravo Corpora- tion, Pittsburgh, Pa. Mr. Mortimer will be responsible for sales of all marine equipment and all systems involving bulk materials handling equipment such as unloaders, stacker/reclaimers, stackers and loaders. A graduate of the University of Pittsburgh, Mr. Mortimer holds a B.S. degree in mechanical engi- neering. He joined Dravo in 1955 as a design engineer, and most re- cently served as manager of marine sales. Mr. Mortimer is registered as a professional engineer in Penn- sylvania. Dravo's Engineering Works Di- vision designs and builds inland and coastal waterway marine equipment, heavy bulk materials handling equipment, and other spe- cialized heavy machinery and equipment. Atlantic Companies Names George Jones Marine Secretary George A. Jones has been named marine secretary of the Atlantic Companies (Atlantic Mutual In- surance Company and Centennial Insurance Company). Prior to joining Atlantic's ocean cargo department in 1957, Mr. Jones had 10 years of insurance experience in England. He was named marine supervisor of the Companies' Philadelphia office in 1961. Mr. Jones was transferred to the home office in 1963, and was named an assistant secretary in 1966 and hull secretary in 1968. The Atlantic Companies write virtually all lines of insurance ex- cept life, and have offices from coast to coast. FOR 30 YEARS WE'VE SHIPPED OUR UNITS EVERYWHERE ON EARTH. NOW WE'RE SHIPPING THEM TO SHIPS. If you're low on water, here's good news. Now we make our bestselling Meco sea water conversion units for aboard ship, too. Meco's new large two-stage flash evaporators are available from 10,000 gallons per day. Up to 100,000. Like every Meco system, P5i they're built with advanced Meco features for greater reliability, better economy and easier maintenance than any other system you can buy. And backed by the world's most experienced company in sea water conversion for over 30 years. For an evaluation of your fresh water requirements, write or call Meco today. * With a marine water system by Meco, you've got it made. Mechanical Equipment Company, Inc., 861 Carondelet St., New Orleans, La. 70130. (Area Code 504) 523-7271. MECO get the job done right JACKSON MARINE ROPES ... for the really big marine jobs Tying up the big ones requires a hawser that can take it. And, come back for more! Two husky new JACKSON ropes ideal for these heavyweight tasks, yet which are manageably lightweight and easy to handle, are the P-J Combo and P-C Combo. These fine new top-quality com- bination ropes are designed for the toughest marine tasks and stand up over a lengthy lifetime of rugged use. See your JACKSON distributor or write us. 'A JACKSON £ ROPE CORPORATION St K Division t>f AS PRO, Inc. if fp Ninth and Oley Streets / Reading, Pennsylvania 19604 Rope Makers < Since 1 829 32 Maritime Reporter/Engineering News
