Automatische Übersetzung. Originaltext in: EN - Original anzeigen After the good experience with the five-part double-decker articulated train of the 1957 type that the Deutsche Reichsbahn (DR) made with the 2- and 4-part double-decker articulated trains, it had a new 5-part articulated train developed. With the further development of lightweight construction, this should offer significantly greater travel comfort. The new trains were to be used in local and long-distance traffic. A significant reduction in the weight of the seats was achieved by arranging the entry areas above the bogies. The 5-part train consists of 2 end cars, 3 intermediate car bodies and 4 intermediate cars with the entrances.
Series production of these trains began in 1957. The train was 104.3 m long and seated 640 passengers. Each car had a toilet under the stairs. The car crossings were arranged at the top in order to connect 2 car trains with a machine car, which enabled the vehicle lighting by a 40 kW diesel generator if the car was not in use for a long time. A buffet room was arranged on the upper floor of the machine car.
The trains performed well, especially in long-distance traffic. The trains were used practically only in domestic traffic. The "Express Young Socialists", which brought participants in the 1960 World Youth Festival to Vienna, was an outstanding example of such a train. In local transport, however, with an occupancy of more than 150%, the axle load was exceeded. Until the beginning of the 80s these trains could be observed in long-distance traffic, e.g. between Berlin and Aue via Leipzig or from Cottbus to Eisenach. Despite the offer of approx. 2x640 seats, these trains had to be reinforced by additional cars on Fridays.
By the end of the 1980s, these trains gradually disappeared from the tracks. In the 1970s, more 5-part double-decker articulated trains were designed primarily for local transport, in which the car bodies were shortened by 1 compartment in order to avoid the axle load being exceeded in the event of overstaffing. / Quellen: http://www.lok-schlosserei.de/html_de/n/dgz57.htm?