0-12-0

Locomotive wheel arrangement Under the Whyte notation for the classification of steam locomotives, 0-12-0 represents the wheel arrangement of no leading wheels, twelve powered and coupled driving wheels on six axles, and no trailing wheels. Equivalent classifications Other equivalent classifications are: UIC classification: F (also known as German classification and Italian classification) French classification: 060 Turkish classification: 66 Swiss classification: 6/6 thumb|Pennsylvania The first example of the 0-12-0 was the Pennsylvania, designed by Jame Milholland for the Philadelphia and Reading Railroad and built at its own shops in 1863. It weighed fifty tons and was, at the time, the heaviest steam locomotive in the world.White 1972 28 It was intended as a pusher engine for Pennsylvania coal trains on the Falls Grades near Philadelphia.Ellis 1968 80 Tank engines There were only two classes of 0-12-0T locomotives: The first was a class of three rack locomotives built by Lokomotivfabrik Floridsdorf in 1912 for use on the Erzberg Railway (Erzbergbahn) in Austria. Initially classified as class 269 by the kkStB, they passed to the BBÖ after World War I, the Deutsche Reichsbahn in 1939, and finally the ÖBB after World War II. They all stayed in service until the 1970s. The only others of the type, was a class of ten 0-12-0T locomotives built by Hanomag in 1922 for the Bulgarian State Railways (BDŽ). They were initially numbered 4001–4010, but were renumbered 45.01 to 45.10 in 1935–1936.Durrant 1972 64–65 They were built as two-cylinder compound locomotives, with a 15 kg/cm2 MPa psi 3 on boiler feeding a 620 x 700 mm in 2 on high-pressure cylinder discharging to a 900 x 700 mm in 2 on, both of which were connected to the 1340 mm in 2 on driving wheels. The locomotives weighed 101 t.Durrant 1972 71 References Bibliography Durrant A. E. 1972 The Steam Locomotives of Eastern Europe Newton Abbot, Devon David and Charles 0-7153-4077-8 Ellis C. Hamilton C. Hamilton Ellis Pictorial encyclopaedia of railways Hamlyn London 1968 0-600-37585-4 White John H. Jr. Early Locomotives Dover New York 1972 0-486-22772-3 registration https://archive.org/details/earlyamericanloc00whit 12,0-12-0 Category:Railway locomotives introduced in 1863