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50 ROBERT W. STEWART—Tanker—Lakes—Single Screw—Steam Name—RoBERT W. STEWART Owner—Standard Oil Co. of Indiana Builder—American Ship Building Co. Naval Architect—N. J. Pluymert Launched—Dec. 3, ’27; completed, April 7, ’28 Classification—American Bureau of Shipping HULL PARTICULARS Length over all, 390 feet 5 inches; length between perpendiculars, 380 feet 3 _ inches; breadth molded, 52 feet; depth molded, 25 feet; draft, 19 feet; displacement, 8885 tons (2240 pounds) in fresh water; gross tonnage, 4161; net tonnage, 3025; deadweight capacity in long tons at 19 feet 11 inches draft is 6000; cargo capacity, 2,071,780 United States gallons; bunker fuel oil capacity, 114,825 United States gallons; speed, 138% statute miles per hour. MACHINERY PARTICULARS Main Engine—One 3-cylinder vertical triple expansion surface condensing steam _ engine, built by the American Ship Building Co. Size, 234% x 388 x 63 inches x 42-inch stroke; indi- cated horsepower at 90 revolutions, 2150 at 95 revolutions, 2500. Boilers—Two, single ended, scotch marine type boilers, built by the American Ship Build- ing Co. Size, total heating surface, 6234 square DESCRIPTION A steel single screw steam driven oil tank- er of something over two million gallons capacity for service on the Great Lakes. This vessel was built with the greatest care both in regards to hull and machinery. . Workman- ship and materials of the highest quality went into her building. Her design is conserv- ative following in gen- eral the usual tanker. feet; 15 feet 4% inches diameter x 11 feet 6 inches between heads; working pressure, 180 pounds per square inch; each boiler is fitted with three 46-inch diameter Morrison furnaces with Howden fronts. These boilers were built to government and American Bureau rules. Todd oil burning equipment is fitted with two 6 x 4 x 6 horizontal duplex pumps. AUXILIARY EQUIPMENT Windlass—American Ship Building Co. Winches—American Ship Building Co. Steering Engine—American Ship Building Co. Propellers—American Ship Building Co. Refrigeration—One 2-ton Brunswick-Kroeschell Electric Generators—Two 15 k. w. Engberg Distiller—Griscom-Russell Co. Feed Heater—Griscom-Russell Co. Soot Blowers—Bennett Type Condenser—Foster-Wheeler Corp. Anchor Chain—National Malleable Co. Thrust Bearings—Shoe-Am. Ship Building Co. The ROBERT W. STEWART is built on the Isher- wood system of longitundinal framing. The hull proper is divided into seven double main cargo tanks, each 30 feet long with a combined capacity of two million gallons. Aft of tank No. 7 are two cofferdams and a fuel bunker. MARINE REVIEW—April, 1929