Württemberg A
Encyclopedia
Then locomotives of Württemberg Class A were express train 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...

s operated by the Royal Württemberg State Railways
Royal Württemberg State Railways
The Royal Württemberg State Railways were the state railways of the Kingdom of Württemberg between 1843 and 1920...

. They were built from 1878 by the Maschinenfabrik Esslingen
Maschinenfabrik Esslingen
Maschinenfabrik Esslingen , was a German engineering firm that manufactured locomotives, tramways, railway wagons, roll-blocks, technical equipment for the railways, , bridges, steel structures, pumps and boilers.-Founding:...

 engineering works.

In the mid-1860s the Württemberg State Railways turned away from the 4-4-0
4-4-0
Under the Whyte notation for the classification of steam locomotives, 4-4-0 represents the wheel arrangement of four leading wheels on two axles , four powered and coupled driving wheels on two axles, and no trailing wheels...

 American-influenced locomotives and went back to 2-4-0
2-4-0
Under the Whyte notation for the classification of steam locomotives, 2-4-0 represents the wheel arrangement of two leading wheels on one axle, four powered and coupled driving wheels on two axles, and no trailing wheels....

 locomotives, because they were cheaper to buy and maintain. They even converted some 4-4-0s to 2-4-0 engines.

Because these locomotives had been built over many years, the individual engines differed from one another in certain details and, for example, the boiler
Boiler
A boiler is a closed vessel in which water or other fluid is heated. The heated or vaporized fluid exits the boiler for use in various processes or heating applications.-Materials:...

 pressure was increased from 10 to 12 bar. The engines had a tender of Class 2 T 10 and were recognisable by their large steam dome
Steam dome
A Steam dome is a vessel fitted to the top of the boiler of a steam locomotive. It contains the opening to the main steam pipe and its purpose is to allow this opening to be kept well above the water level in the boiler...

, that was located just behind the only slightly higher smokestack.

Two locomotives ended up in the final DRG renumbering plan
DRG renumbering plan for steam locomotives
In 1922 the Deutsche Reichsbahn began to develop a renumbering plan to standardize the numbering of steam locomotives that had been taken over from the state railways . Its basis was the corresponding DRG classification system....

 of 1925 as the DRG Class 34.81. Number 34 8101 was the former 336, that in 1896 had been converted from a Württemberg Aa. Number 34 8102, formerly 363, was by contrast newly built in 1891. Both locomotives were retired in 1925.

See also


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