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32 SUNOCO—Twin Screw—Tanker—Direct Drive Diesel Name—SuUNOcO Owner—Sun Oil Co., Phila. Builder—Sun Shipbuilding & Drydock Co. Naval Architect—John W. Hudson Completed—1926 Classification—American Bureau of Shipping HULL PARTICULARS Length overall, 253 feet 6 inches; length be- tween perpendiculars, 245 feet 6 inches; breadth molded, 40 feet; depth molded, 15 feet to main deck, 18 feet to top of expansion trunk; draft designed, 12 feet; displacement loaded, 2650 tons; gross tonnage, 12138; net tonnage, 738; cargo capacity, 15,500 barrels of oil; cargo capacity in cubic feet, 86,900; deadweight in tons, 1825 on 12 feet draft; full capacity, 2250 tons at 88.5 cubic feet per ton; speed, 10 knots. MACHINERY PARTICULARS Main Engines—Two heavy oil engines built by Bessemer Gas Engine Co.; six cylinder 4- cycle; 11%-inch bore and 16-inch stroke; each engine of 3860 brake horsepower. Boiler—One auxiliary heated by exhaust gases and fitted for burning oil; built by Sun Shipbuilding & Drydock Co.; of locomotive type with 377 square feet of heating surface. Auxiliary Engines—Two heavy oil engines built by the Bessemer Gas Engine Co. of four cylinders 74% x 10 inches. DESCRIPTION A low superstructure steel tanker for carry- ing oil in bulk on riv- ers, harbors and through the barge ca- nal to the Great Lakes. Designed to carry a maximum load for its dimensions on the extreme draft per- missible through the canal. The vessel is thoroughly subdivided into tanks, equipped for any grade oil. AUXILIARY EQUIPMENT Manufacturers of: Pumps—Worthington Pump & Mach. Corp. Windlass—American Engineering Co. Winches—American Engineering Co. Steering Engine—Hyde Windlass Co. Propellers—Sun Shipbuilding & D. D. Co. Refrigeration—Brunswick-Kroeschell Oil Burning Equip.—Ray Electric Generators & Motors—Diehl Framing—lIsherwood System Steering Control & Helm Indicator—Sperry Silencers—Maxim Silencer Co. Control Apparatus—Cutler-Hammer Mfg. Co. Oil Purifier—De Laval Separator Co. The SUNOCO was designed for operation coast- wise, harbors, rivers and canal for carrying oil in bulk from refinery to delivery stations as for instance from Chester, Pa. to New York harbor, barge canal and Great Lakes. The motive power is twin screw diesel direct drive with machinery aft. ? There are eight tanks and the pump room is located aft. She is built. on the Isherwood longitudinal system. Accommodations for deck officers and the wheel house are forward while the engineers and crew have quarters in the deckhouse aft. MARINE REVIEW—April, 1927