For the increasing requirements of the armaments industry and for other war-related transport, H. Fuchs Waggonfabrik A.G. in Heidelberg, for example, built six-axle cars to transport acids at the beginning of the 1940s. The cars had a riveted base frame and riveted bogies and were equipped with a handbrake and a Hildebrand-Knorr freight train brake. The tank was designed as a 10-section welded construction and had a 40 mm thick insulation as well as heating with connections to the end without the handbrake. At the handbrake end there was an intercommunication platform with a brakeman’s cab., , With a capacity of approximately 40 cubic metres, the tank was com-paratively small., , Due to the distribution over six axles, however, the mean axle load was very low and the cars could also be used fully loaded on lines with a lighter superstructure. The tanks could only be filled and emptied from above, as with wagons for transporting acids floor valves were not permitted in those days. With the vehicles which were mostly used by the large factories of the chemical industry on the Deutsche Reichsbahn as private cars, their products were transported between the various locations.
