. Railway mechanical engineer . 0 185 200 185 205 200 200 Heating surface, evaporating, sq. ft. 3,680 4,205 4, 3,982 3,786 3,936 3,960 3,966 Heating surface, superheater, 760 975 991 955 879 833 740 879 Grate area, sq. ft 70 69 58 Weight on drivers, lb 197,300 * 191,000 176,900 179,900 166,200* 184,300 Weight total engine, lb 305,500 293,000* 312,600 280,300 282,000 * 297,600 281,600 Tractive effort, lb 47,500 47,400 -H., 46,000 44,000 43,400 43,200 43,200 ♦Weights estimated. Baldwin Penn 27x28 27x2S 74 85 ISO 204 3,364 751
. Railway mechanical engineer . 0 185 200 185 205 200 200 Heating surface, evaporating, sq. ft. 3,680 4,205 4, 3,982 3,786 3,936 3,960 3,966 Heating surface, superheater, 760 975 991 955 879 833 740 879 Grate area, sq. ft 70 69 58 Weight on drivers, lb 197,300 * 191,000 176,900 179,900 166,200* 184,300 Weight total engine, lb 305,500 293,000* 312,600 280,300 282,000 * 297,600 281,600 Tractive effort, lb 47,500 47,400 -H., 46,000 44,000 43,400 43,200 43,200 ♦Weights estimated. Baldwin Penn 27x28 27x2S 74 85 ISO 204 3,364 751 70 169,700 200,000 266,400 305,000 42,200 41,845 motives for the Richmond, Fredericksburg & Potomac, built bythe Baldwin Locomotive Works. The Lackawanna engines havea tractive effort of 47,500 lb., which is the highest on record Pocono Summit of 78 ft. per mile for a distance of 16 miles,with curves of five and six degrees. About three years agoseven Pacific type locomotives* were built by the American Loco-. Heavy Pacific Type Locomotive for the Lackawanna for a Pacific type locomotive. The Richmond, Fredericksburg& Potomac locomotives are but slightly less powerful, having atractive effort of 47,400 lb. A comparison of the principaldimensions of both classes with those of several other large motive Company, to replace a class of heavy 10-wheel locomotivesthan handling the through passenger service. They were de-signed to handle a 460-ton train over this grade at a sustainedspeed of 30 miles an hour and have handled trains of eight carsrailwaymechanica90newy
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