German Reichsbahn 08 1001

Even before the 07 1001, the Reichsbahn had rebuilt another French steam locomotive for firing with coal dust and numbered it 08 1001. It was a member of the class 241 A, which was built in 1931 for the French Eastern Railway and rested in Greifswald non-operational until 1952. As one of the few Mountain steam locomotives in Europe with a 4-8-2 wheel arrangement, it was an extraordinarily powerful express locomotive and was therefore ideal for trials with coal dust. 

Like the 07 1001, it had a four-cylinder de Glehn compound engine, the low and high pressure cylinders of which acted on the first and second driving axles and could be controlled separately, which was rarely used in Germany. The large combustion chamber favored the new type of firing, and so the rebuilding process began in 1952. However, the locomotive could not prove its efficiency because the boiler pressure had been reduced from 20 to 16 bars and the maximum speed was set at 110 km/h for safety reasons. The result was that the expectations had not been met and the locomotive was scrapped after just 34,000 km. The tests were then continued with the 07 1001, but also with relatively little success.