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D&RGW K-28
Denver & Rio Grande Western K-28 is a class of ten narrow gauge 2-8-2, Mikado type, steam railway locomotives, built as Passenger locomotives in 1923 by the Schenectady Locomotive Works of the American Locomotive Company for the Denver & Rio Grande Railroad. They were the first new narrow gauge locomotives ordered by the railroad since 1903.〔 They initially comprised class E-4-148-S, but were reclassified K-28 in 1924 when the railroad reorganized into the Denver & Rio Grande Western Railroad.〔
The chassis is of outside-frame design with the drive wheels placed between the main frames, and the running gear (cranks, counterweights, rods and valve gear) to the outside. This general arrangement was also used on the earlier class K-27 and later class K-36 and K-37 engines.
In later years they were tasked with carrying express passengers on the narrow gauge such as the San Juan from Alamosa to Durango, The Silverton from Durango to Silverton, the Shavano from Salida to Gunnison, and on the Chili Line.
==White Pass & Yukon==
During World War II, seven of them were purchased by the US Army for use on the White Pass and Yukon Route in Alaska and the Yukon where they were renumbered USA 250 to USA 256. But they did not fare well in the bitter Yukon winters. In particular, the unusual, extended counterweights on the driving wheel axles made them liable to ride up on trackside ice, lifting the engine off the rails. All seven were withdrawn from service in 1944, and were barged to Seattle in 1946 for scrapping.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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