The Bavarian Class D IV was a German steam locomotive

Steam locomotive

A steam locomotive is a railway locomotive that produces its power through a steam engine. These locomotives are fueled by burning some combustible material, usually coal, wood or oil, to produce steam in a boiler, which drives the steam engine...

 with the Bavarian Eastern Railway

Bavarian Eastern Railway

The Royal Bavarian Eastern Railway Company or Bavarian Ostbahn was founded in 1856...

 (Bayrische Ostbahn).

These engines had inside frames

Locomotive frame

A locomotive frame is the structure that forms the backbone of the railway locomotive, giving it strength and supporting the superstructure elements such as a cab, boiler or bodywork. The vast majority of locomotives have had a frame structure of some kind...

 and Allan valve gear and were delivered in three series, that differed from one another in their dimensions. The original classification D was adopted by the Royal Bavarian State Railways

Royal Bavarian State Railways

As a nation-state, Germany did not come into being until the creation of the German Empire in 1871 from the various German-speaking states such as Prussia, Bavaria, Saxony, Baden and Württemberg. By then each of the major states had formed its own state railway and these continued to remain...

 (Königlich Bayerische Staatsbahn) and amended to D IV. Initially all the engines were taken over by the Deutsche Reichsbahn

Deutsche Reichsbahn

Deutsche Reichsbahn was the name of the following two companies:* Deutsche Reichsbahn, the German Imperial Railways during the Weimar Republic, the Third Reich and the immediate aftermath...

. However only six vehicles were given running numbers (88 7021–7026). By the late 1920s they were all either retired or sold.

External links

• There is a relevant English-language forum at Railways of Germany