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PRESIDENT COOLIDGE—Passenger—Ocean—Iwin Screw—Electric DESCRIPTION The PRESIDENT COOL- IDGE and the PRESIDENT Hoover are practically sister ships, the only difference being that the turbine electric pro- pelling machinery and electric auxiliaries for the PRESIDENT COOLIDGE were furnished by the Westinghouse Electric & Mfg. Co. Both ves- sels are engaged in the service from New York to the Orient; the PREsI- DENT COOLIDGE sailed on Oct. 15, 1931. Name—PRESIDENT CooLIDGE Owner—Dollar Steamship Lines Inc., Ltd. Builder—Newport News S. B. & D. D. Co. Naval Architect—Newport News S. B. & D. D. Co. Launched—Feb. 21, ’31; comp. Oct. 1, ’31 Classification—American Bureau of Shipping HULL PARTICULARS Length over all, 654 feet, 3 inches; length between perpendiculars, 615 feet; breadth mold- ed, 81 feet; depth molded to shelter deck at side, 52 feet; draft loaded, 82 feet; displace- ment loaded, 31,441 tons; gross tonnage, 21,936; net tonnage, 13,029; passenger capacity, first class, 307; special class, 133; third class, 170; steerage, 378; cargo capacity, 8000 tons, and in cubic feet, nonrefrigerated, 549,400, refriger- ated, 59,450; bunker fuel oil capacity in tons, 6244; speed at sea, 20 knots. MACHINERY PARTICULARS Main Engines—Two, Westinghouse turbine generating units and two electric motors direct connected to propellers. Total horsepower, 26,- 500 at 133 revolutions per minute. Machinery and vessel described in Marine Revirw for November, 1931. The generators are alternat- ing current and are each of 10,200 kilowatts ca- pacity. ; Boilers—Twelve, Babcock & Wilcox watertube marine boilers with a total heating surface of 57,624 square feet and total superheating sur- face of 5700 square feet; working pressure, 300 pounds; 200 degrees Fahr. superheat; fuel, oil. Superheaters, de-superheaters, feed water regu- lators, oil burning equipment and fire brick, all supplied by Babcock & Wilcox Co. Soot blowers, Diamond Power Specialty Corp. eaa8 Auxiliary Generators—Four, turbine geared, each 500 kilowatts, Westinghouse Electric & Mfg. Co. AUXILIARY EQUIPMENT Pumps—wWarren Steam Pump Co. Windlass—American Engineering Co. Winches—Lidgerwood Mfg. Co. Steering Engine—American Engineering Co. Propellers—Newport News S. B. & D. D. Co. Refrigeration—Brunswick-Kroeschell Co. Pan- try and beverage room—Frigidaire Electric Motors—Westinghouse Elec. & Mfg. Anchors—General Steel Castings Corp. Anchor Chain—National Malleable & S. GC. Co. Lifeboats, Davits—Welin Davit & Boat Corp. Windows—Kearfott Engineering Co. Inc. Thrust Bearings—Kingsbury Machine Works Temperature Indicators—Leeds & Northrup Radio Direction Finder—Mackay Radio & Tel. Gyro Compass, Pilot—Sperry Gyroscope Co. Searchlights—Sperry Gyroscope Co. Plumbing Fixtures—Standard Sanitary Mfg. Blowers and Fans—B. F. Sturtevant Co. Air Ejectors—Westinghouse Elec. & Mfg. Co. Fire Protection—wWalter Kidde & Co. Ine. Depth Finder—Submarine Signal Corp. Deck Covering—Asbestolith Mfg. Co. Revolution Counters—Cummings Marine Hardware—The Dayton Mfg. Co. Oil Purifiers—The DeLaval Separator Co. Galley Equipment—Edison G. E. Appliance, Hobart Mfg. Co., Cleveland Range Co. Batteries—Electric Storage Battery Co. Rubber Flooring—Goodyear Tire & Rubber Gypseys, Boat Hoists—-Hyde Windlass Co. Wire Rope—Wickwire Spencer Steel Co. Relief Valves—W orthington TE seer Se a Wa cars cs Sf a ce ed : Tl “eH Cp el AE an (or ea ee N= im se neen ad | | “ ) 1 MARINE REview—April, 1932 17