Whyte notation
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The Whyte notation is a classification method for locomotives based on wheel arrangement. While the Whyte notation is most commonly used when referring to steam locomotives, it can also be applied to
Whyte notation from a handbook for railroad industry workers published in 1906
Soviet locomotive class AA20
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The SZD Class AA20 was a one-off experimental 4-14-4 steam locomotive constructed in the Soviet Union by Krupp and the Voroshilovgrad Locomotive Factory in 1934 for the Sovetskie Zheleznye Dorogi. Two
Whyte notation
…0-12-0 12-coupled 0-12-2 Used in Argentina 2-12-0 Centipede 2-12-2 Javanic 30 2-12-4 20 2-12-6 Proposed by Lima, never built 4-12-2 Union Pacific 88 4-14-4 AA20, Soviet 1 Divided drive and duplex locomotives 0-2-2-0 Used on the Mount Washington Cog Railway 2-2-2-0 2-2-2-2 2-2-4-0 1 4-2-2-0 Double single…
А. Андреев, the only 4-14-4 locomotive ever built