Under the Whyte notation for the classification of steam locomotives, 2-12-2 represents the wheel arrangement of two leading wheels on one axle (usually in a leading truck), twelve powered and coupled driving wheels on six axles, and two trailing wheels on one axle (usually in a trailing truck).

Equivalent classifications[]

Other equivalent classifications are:



The Deutsche Reichsbahn and later the Austrian Federal Railways operated two Class 97.4 2-12-2T tank locomotives, both built in 1941.[1]


Hanomag and Werkspoor built a cumulative total of 28 JSS 800 class 2-12-2Ts (1F1 in UIC notation) for use by the Staatsspoorwegen in freight service in Java and Sumatra, Dutch East Indies, now Indonesia. They were assigned the railroad numbers 801-823 and H130-134.[2]


  1. ^ http://www.steamlocomotive.com/locobase.php?country=Austria&wheel=2-12-2&page=as
  2. ^ Book, in Dutch: "De stoomtractie op Java en Sumatra", author: J.J.G. Oegema, year 1982, ISBN 9789020115208