The United States Army Transportation Corps (USATC) S118 Class is a class of 2-8-2 steam locomotive. Built to either 3 ft (914 mm), 1,000 mm (3 ft 3 3⁄8 in) metre gauge or 3 ft 6 in (1,067 mm) gauge, they were used in at least 24 different countries across the World.741 were built in the period late 1942–1945 with a further 52 appearing between 1945 and 1948. They were built by Baldwin (253+33), Alco (338), Porter (25+5), Davenport (67+6) and Vulcan (58+8) in the USA.