Great Lakes Art Database

Marine Review (Cleveland, OH), May 1927, p. 12

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board cost $38,000,000 during the past year, all paid out to American dealers and producers in America.” Order Turbine Electric Units for New Cutters Contract for the turbo-electric units of the first three of a total of ten United States coast guard cutters au- thorized by congress last year was recently awarded to the Westinghouse Electric & Mfg. Co. The design and construction of these coast guard cutters will be under the direction of Capt. Q. B. Newman engineer in chief, United States coast guard. In a recent interview concerning the new vessels Captain Newman said: “These new additions to the coast ~ guard fleet, will each be 250 feet _8600 revolutions per minute. overall length, 2000 tons displacement, are to develop a speed of 16% knots and are expected to be ready for service June 30, 1928. At present there are no definite duties awaiting them; they will take their place in the regular coast guard service pa- trolling the coast, relieving vessels in distress or whatever duties may be assigned them. “The installation for each cutter will be one main and two auxiliary turbo-electric sets. The main set, a steam turbine, alternating cur- rent generator and synchronous mo- tor driving a single screw, will de velop 38000 shaft horsepower at a speed of 163.5 revolutions per min- ute. The generator directly coupled to the turbine will develop 2600 kilo- watts and the turbine at a steam pressure of 250 pounds with 250 de grees superheat will have a speed of A vac- uum of 28% inches will be maintained. “All of the auxiliaries will be driven by power supplied direct from the main turbine unit. This is the most important development in marine en- gineering since the advent of electric propulsion. It is notorious that in- efficient auxiliary drives have ruined the economy of otherwise efficient ships. The driving of auxilaries from the main generator at the main tur- CAPT. Q. B. NEWMAN Chief Engineer, United States Coast Guard bine efficiency effectually eliminates this waste. “Under this arrangement it is pos- sible to supply power for lighting, pumping, radio and all other purposes throughout the vessels direct from the main engine. “When cruising under ordinary con- Mia ditions, enough additional power is generated by the main driving unit to supply all auxiliary needs, the auxil- iary turbines being used when in port, or while maneuvering the vessel at reduced speeds. The picking up of the load by the auxiliary sets when the cutter is steaming at reduced speeds is effected by simple automatic control developed by the Westinghouse engineers which operates the steam valve of the auxiliary turbines.” The three unit auxiliary sets will develop about 200 kilowatts each and are intended to supply excitation for the propulsion equipment and power to practically all auxiliaries. Foreign Trade Council The National Foreign Trade council an organization composed of Amer- ican business men, bankers and manu- facturers who have helped each other in both export and import trade for many years will hold its fourteenth annual convention at Detroit May 25-27. This convention promises to be of outstanding success. James A. Farrell, president of the United States Steel Corp. is chairman and he says, “The past year has been an encour- aging period of American foreign trade advance, for in it our share in the vast international trade of the world reached its highest point whether measured by value or volume.” The council is a national committee for the welfare of overseas commerce and its members do not represent their own companies but serve as rep- resentatives of the particular class of business with which they are con- nected and of the section of the coun- try from which they come. One of the subjects is the merchant marine. Artists drawing made by C. McKnight-Smyth of the new coast guard cutters authorized by congress 12 MARINE REVIEW—May, 1927 SESS Cae en

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