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ewe Name—Do1omitTr No, 1 Owner—Dolomite Marine Corp., Rochester Builder—Dolomite Marine Corp. Designed by—J. H. Odenbach; J. Cattanach Launched—oOct. 20, ’33; Comp. Feb. 1934 Classification—American Bureau of Shipping HULL PARTICULARS Length over all, 214 feet; length between per- pendiculars, 205 feet, 4 inches; breadth molded, 32 feet; depth molded, 13 feet, 4 inches; draft loaded, 10 feet, 6 inches; displacement loaded, 1800 tons; gross tonnage, 934; net tonnage, 478; cargo capacity, in cubic feet, liquid, 48,- 730; or bulk, 37,200; total bulk and part liquid, 52,330; cargo capacity, in tons, 1200; bunker diesel fuel capacity, in tons, 22; speed, 12 knots. MACHINERY PARTICULARS Main Engines—Two, 6-cylinder, 4-cycle, air injection, 14144-inch bore and 14%-inch stroke type 6-MA-85, built by Busch-Sulzer Bros. Die- sel Engine Co. Each engine develops 440 brake horsepower at 360 revolutions per minute, and is direct connected to an electric generator. Main Generators—Two, each 316 kilowatts, 300 volts, direct current built by Diehl Mfg. Co. Each of these generators is driven by one of the above-mentioned diesel engines at 360 revolu- tions, Each main engine also drives one 25-kilo- watt, 125 volts auxiliary generator, Excitation is supplied by a 1900 ampere-hour storage bat- tery, Main Propulsion Motors—Two, direct current, each 350 horsepower at 360 revolutions per minute, 85 to 325 volts of Diehl Mfg. Co. make. DOLOMITE NO. 1 —Self-Unloader—Canals—Twin Screw—Diesel Electric DESCRIPTION The largest all- welded steel freighter so far built in the United States. Chan- nels bent cold to the shape of the trans- verse sections are welded together at toe and heel to form the hull of the _ vessel. Equipped for self-un- loading, either liquid or dry cargo. Speed 12 knots. Each propelling motor is direct connected to a four-bladed cast steel propeller, 5 feet, 6 inches in diameter and 388 inches in pitch. Auxiliary Generators—Three, of which two each 25 kyw., 125 volts, are driven by a link belt from each engine; the third is independently driven by a 4-cylinder, Winton diesel engine, Westinghouse generator, 32 k.w., 125 volts. AUXILIARY EQUIPMENT Pumps—Northern (principally) ; Worthington Windlass—American Hoist & Derrick Co. Steering Gear—Hyde; Waterbury Pump. Propellers—E,. H. Reading Co. Retrigeration— Frigidaire Oil Cooler—Schutte & Koerting Filter—Elliott (for stern bearings) Oil Purifier—The Sharples Specialty Co. Manila Rope—Columbian Rope Co. REMARKS It is estimated that approximately 25 per cent has been saved in deadweight by welded con- struction. An elaborate belt conveyor and pump- ing system makes it possible to discharge either bulk or liquid cargo. Depending on the cargo, the vessel may be loaded in from one to six hours and unloaded in from three to six hours. During the cold month of February the Dolo- mite No, 1 made her way successfully from Al- bany to New York through from 8 to 14 inches of solid ice without sustaining the slightest damage. Designed for service on the Barge canal, the Great Lakes, and as may be necessary for limited coastwise service. A complete descerip- tion appeared in MARINE Review for September, 1933. ANS ODE l oS | ORO ons MARINE REVIEwW—April, ‘1934