Übergangskriegslokomotive
Encyclopedia
The Übergangskriegslokomotiven (literally: provisional war locomotives) were austere versions of standard locomotives (Einheitslokomotive
Einheitslokomotive
Einheitslokomotive was the name given to standard classes of German steam locomotives built from 1925 under the direction of the Deutsche Reichsbahn to certain common designs, and also to standard German electric locomotives produced after 1952 for the Deutsche Bundesbahn...

n
) built by Germany
Germany
Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 during the Second World War in order to accelerate their production. They are often just called 'ÜK' locomotives.

In the Second World War the requirement for motive power, especially goods train locomotives, rose sharply. To cope with the demand the standard locomotive classes 44
DRG Class 44
The Class 44 was a ten-coupled, heavy goods train steam locomotive built for the Deutsche Reichsbahn as a standard steam engine class . Its sub-class was G 56.20 and it had triple cylinders...

, 50
DRB Class 50
Because the Deutsche Bundesbahn had sufficient goods train locomotives, they could quickly phase out the DRB Class 52 engines, so that the ageing boilers on the Class 50s could be replaced by those of the Class 52s. Even the 'bathtub' tender of the Kriegslokomotiven was used by the 50s amongst...

 and 86
DRG Class 86
The DRG Class 86 was a standard goods train tank locomotive with the Deutsche Reichsbahn-Gesellschaft. It was intended for duties on branch lines and was delivered by almost all the locomotive building firms working for the Reichsbahn...

 were built, after 1941, to a simpler, more austere design and given the designation (ÜK) after the class number.

Characteristic of ÜK locomotives are e.g. disc wheels on the carrying axles and the omission of the front side windows in the driver's cabs. Even preheaters, feed pumps, Frontschürzen, smoke deflectors
Smoke deflectors
Smoke deflectors are vertical plates attached to the front of a steam locomotive on each side of the smokebox. They are designed to lift smoke away from the locomotive at speed so that the driver has better visibility unimpaired by drifting smoke....

 and other equipment not essential for the operation of the locomotives were sometimes left out.

The ÜK classes proved however to be just an interim step. As early as 1941 the requirement for a further, more radical simplification of locomotive construction became ever more pressing. As a result, genuine war locomotives (the Kriegslokomotive
Kriegslokomotive
Kriegslokomotiven were German 'war locomotives', produced in large numbers during the Second World War, whose construction was tailored to the economic circumstances of wartime Germany, such as shortages of materials, goods transportation , ease of maintenance under difficult conditions, resistance...

n
) were developed 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...

. They were sub-divided into wartime steam locomotives (Kriegs-Dampf-Lokomotiven or KDL) and wartime electric locomotives (Kriegs-Elektrolokomotiven or KEL). Examples include the steam classes 42
DRG Class 42
- DB Class 42.90 :In 1952, the firm of Henschel rebuilt locomotives 52 893 and 52 894 with Franco-Crosti economisers...

 and 52, as well as the Class E 44 and E 94
DRG Class E 94
The DRG Class E94 is an electric heavy freight locomotive built for Deutsche Reichsbahn's since 1940, with the bulk of deliveries taking place in the same year. It is a major evolution of the DRG Class E93, and even after World War II, new units were ordered and delivered as late as 1957....

.

See also

  • DRG Class 44
    DRG Class 44
    The Class 44 was a ten-coupled, heavy goods train steam locomotive built for the Deutsche Reichsbahn as a standard steam engine class . Its sub-class was G 56.20 and it had triple cylinders...

  • DRB Class 50
    DRB Class 50
    Because the Deutsche Bundesbahn had sufficient goods train locomotives, they could quickly phase out the DRB Class 52 engines, so that the ageing boilers on the Class 50s could be replaced by those of the Class 52s. Even the 'bathtub' tender of the Kriegslokomotiven was used by the 50s amongst...

  • DRG Class 86
    DRG Class 86
    The DRG Class 86 was a standard goods train tank locomotive with the Deutsche Reichsbahn-Gesellschaft. It was intended for duties on branch lines and was delivered by almost all the locomotive building firms working for the Reichsbahn...

  • DRB Class 52
  • DRG Class 42
    DRG Class 42
    - DB Class 42.90 :In 1952, the firm of Henschel rebuilt locomotives 52 893 and 52 894 with Franco-Crosti economisers...

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