USATC S160 Class

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The United States Army Transportation Corps S160 Class is a class of 2-8-0 "Consolidation" type steam locomotives, designed for heavy freight work in Europe during World War II. A total of 2,120 were built and they worked on railroads across much of the world, including Africa, Asia, all of Europe and South America. During the 1930s, the United States Army Transportation Corps approved an update of a Baldwin Locomotive Works World War I design, to be used, if required, for war transportation. The result was the S159 Class loco. During the early period of World War II, when America was neutral, the government of Franklin D. Roosevelt approved the Lend-Lease supply to the United Kingdom of the S200 Class, a 2-8-2 configuration, designed specifically to fit into the restricted British loading gauge. With America's entry to World War II, the USATC needed a developed design from which a large number of locomotives could be constructed to run on the wrecked railways of Europe, deploying military hardware and civilian goods. Hence, the development of the S160 Class, designed by Maj. J. W. Marsh from the Railway Branch of the Corps of Engineers, which drew on previous locomotives, using austerity principles, and was built using methods which allowed for efficient and fast construction, and a long life, including axlebox grease lubricators, and rolled plates in preference to castings. With cast frames (a few had frames which were flame-cut from rolled steel slabs) and cast wheels, the front two driving axles were sprung independently from the rear two driving axles, to cater for running on poor-quality track. The larger tender layout was derived from the similar design of the British WD Austerity 2-8-0, with an inset coal bunker above the water tank to improve visibility when running backwards.