The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

ee a Twin Screw Freighters for New York State Barge Canal - Edgewater and Chester Main and Auxiliary Machinery and Equipment Particulars Engines, Boilers & Auxiliaries Main Turbines and Gears—Two units, triple expansion turbines, each unit delivering 800 shaft horsepower through double reduction gearing to each propeller at 250 revolutions per minute. Total shaft horsepower per vessel, 1600. Each unit also has one astern high pressure turbine developing 520 shaft horsepower. Total astern horsepower, 1040. Turbines and gears Westinghouse Electric & Mfg. Co. Boilers—Two marine watertube boilers de- signed to supply 21,000 pounds of steam at a working pressure of 425 pounds per square inch and 200 degrees superheat; oil burn- ing; water-wall type; built by Combustion Engineering Corp. Condensers—Westinghouse, 520 square feet. Circul-ting Pump—Westinghouse, 3000 gallons per minute. Condensate Pump—Westinghouse, 20,000 pounds yer hour. Air Ejectors—Twin. Two house. Oil Cooler—Single pass surface type, 100 gal- lons per minute, Westinghouse. Fans—Turbine driven propeller type, 20,000 pounds air per minute for induced draft; Westinghouse. -Qil Burning Equipment—Two burners per boiler; Peabody Engineering Corp. Fuel Oil Pumps—Quimby, screw type; motor driven; six gallons per minute. stage, Westing- Oil Heaters—Westinghouse; 100 square feet surface. Strainers—Schutte & Koerting Co. Fuel Oil Transfer Pump—Worthington, 45 gallons per minute. Generators—Westinghouse, 50 kilowatts. Balancer Set—Westinghouse, 5 kilowatts. Main Feed Pumps—Westinghouse, 60 gallons per minute at 550 pounds. Feed Water Heater—Westinghouse, 120 square feet. Feed Water Control—Copes. Combustion Control—Smoot Engineering Co. Injector—Schutte & Koerting; 114 inch. Salinity Indicator—Sperry Gyroscope Co. Evaporator Distilling Unit—Par. coil, Davis Engineering Corp, ten tons for 24 hours. Switchboard—Great Lakes Engineering Works ; dead front; four panel stainless steel, Pumps and Services Ballast and Bilge—Nash 3 x 4 Westinghouse turbine. Bilge in Engine Room—Nash 3 x 4; motor driven 5 H. P. Westinghouse motor. Fire Pump—Turbine driven, 200 gallons per minute, Worthington with Westinghouse turbine. Salt Water Sanitary—Worthington, 80 eg l- se per minute; 2 H. P. motor, Westing- ouse. Fresh Water—Worthington, 45 gallons per minute; 3 H. P. Westinghouse motor, Drinking Water—Westco; 5 gallons per min- ute; 144 H. P. Westinghouse motor. Drain Tank—Westco; 10 gallons per minute; motor driven. Culinary Transfer—Westco; 5 gallons per min- ute; motor driven. Salt Water Cooling Service—Westco; 45 gal- lons per minute. Miscellaneous Equipment Deck Machinery—Steering gear, screw type, duplic.te motor driven. Mooring winches, automatic tension type, Warping winches, with 14 by 24 gypsy heads. Hatch cover winches, single drum motor driven. Wind- lass, with vertical wildcats for 154-inch stud link chain. All of the foregoing deck raed supplied by the Benson Electric Oo. Pilot House Control—Sperry Gyroscope Co. Stack Operating Gear—Hydraulic, Great Lakes Engineering Works, Propellers—Two of solid bronze for each ship, Ferguson & Co. Outbcard Bearings—Two for each ship, Cutlass type rubber bearings, B. F. Goodrich Rubber Co. Telegraphs—HElectrical, Ch s. Cory Corp. Operating Gear for Pilot House—Great Lakes Engineering Works; hydraulic ram type. a LEE LLL LLL LLL LL the deck and the mast is dropped by hand. Each vessel carries a total of 1600 horsepower in two Westinghouse “geared turbine units operating silent- ly and without vibration and develop- ing a speed of 13 miles an hour. Con- trol may be maintained from the pilot house forward by an electric system capable of starting the en- gines, stopping and reversing. Dual rudders are virtually efficient enough _to turn the ships without forward motion. The power units: occupy only 30 feet of the overall length and are sit- uated in the stern of the draft. The crew’s quarters are aft and the of- ficers’ quarters are forward, leaving a total of 145,000 cubic feet for cargo space, served by nine _ telescopic hatches. The ships were built in record time, slightly less than five months elaps- ing between the date when the con- tract was let and the first trial trips were made. After deciding upon the _ general STACK WELL asa | MOTOR LTR F.W. TANK\ |40TTOMNE ‘ td re (poate "| (WASHING) |FEEO WATER FVEL on specifications of the hulls, the Ford engineers investigated the different types of power, going from diesel to dieselelectric, from steam to turboelec- tric and finally decided upon special 800-horsepower Westinghouse geared turbines, two units to each craft. Not satisfied with the boilers then avail- able they ordered special ones to be designed by the Combustion Engineer- ing Corp. Thus the two ships were built and they are now both in service, seven months after the initial contracts were let. In every detail they are identical. The overall length is 300 feet, beam 43 feet, molded depth, 20 feet and draft 91% feet when loaded to the normal capacity of 1800 tons. The maximum clearance is 15 feet. During the trial run of the Ener- WATER, the vessel swung about on its dual rudders with no appreciable for- ward motion. The power was switched from ahead turbines to the astern tur- bine in nine seconds and the vessel was stopped within one and one-half times its own length. The speed was WATER BALLAST 13 miles. The boilers, designed to furnish 21,000 pounds of steam at a working pressure of 425 pounds per square inch and 200 degrees superheat, are oil burning, marine watertube, of a water-wall type. The main propelling machinery consists of two units of high pressure, intermediate pressure and low pres- sure turbines for ahead power and one astern high-pressure turbine as- sembled in a common structure. The ahead turbines of each unit develop their rated shaft horsepower of 800 at 7000 revolutions per minute. The astern turbine develops 520 shaft horsepower. Each main propelling unit consists of four impulse turbine wheels con- nected to a single propeller by a two pinion, single case double reduction gear. The high pressure ahead tur- bine rotor is mounted on the aft end of the inboard pinion shaft. The in- termediate pressure rotor is mounted on the forward end of the inboard pinion — shaft. The low _ pressure _ (BOTTOM NEI WATER BALLAST Arrangement of the New Ford Canal Freighters Edgewater and Chester—In Service Through New York Barge Canal 26 MARINE REvIEw—October, 1931