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Württemberg K
The Württemberg Class K steam locomotives of the Royal Württemberg State Railways (''Königlich Württembergische Staats-Eisenbahnen'') were the only twelve-coupled locomotives built for a German railway company.
==History==
The 44 engines of this class built by the Maschinenfabrik Esslingen between 1917 and 1924 were intended for work on the Geislingen ramp (''Geislinger Steige'') and the Baden Black Forest line. As a result of good experiences in Austria and the fact that there was a maximum axle load of only 16 tonnes on those routes, it was decided to produce a twelve-coupled locomotive. The first and last coupled axles were given side-play (Gölsdorf system), the wheel flanges of the two centre axles were reduced by about 15 mm.
The locomotives proved to be a successful design that was very reliable and powerful. In operations on the hilly routes it was very thrifty, however it was not so economical on the flat. The Deutsche Reichsbahn, that had taken over all the locomotives as DRG Class 59, raised the permissible axle load on the important main lines, so that the performance of the Class K could finally be augmented by ten-coupled engines. As a result, no further batches were ordered.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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