DB class ET 56
| DB class ET 56 | |
|---|---|
 |
|
| Numbering: | ET 56 01a / b - 07a / b, EM 56 456 101-107, 456 401-407, 856 001-007 |
| Number: | 7 units |
| Manufacturer: | mechanical part: Fuchs : a-railcar, Rathgeber : b-railcar, Maschinenfabrik Esslingen : intermediate car electrical part: BBC |
| Year of construction (s): | 1952 |
| Retirement: | until 1986 |
| Axis formula : | Bo'2 '+ 2'2' + 2'Bo ' |
| Genre : | BD 4ym + AB 4ym + B ym |
| Gauge : | 1435 mm ( standard gauge ) |
| Length over buffers: | 79,970 mm |
| Service mass: | 116 t |
| Wheel set mass : | 17.1 t |
| Top speed: | 90 km / h |
| Hourly output : | 1020 kW |
| Driving wheel diameter: | 980 mm |
| Impeller diameter: | 930 mm |
| Power system : | 15 kV, 16 2/3 Hz |
| Number of traction motors: | 4th |
| Coupling type: | Scharfenberg coupling |
| Seats: | 262 |
The electric railcars of the ET 56 series (from 1968 the 456 series of the DB ) were designed for local high- speed traffic in southern Germany. They consisted of two railcars and a closely coupled intermediate car. The train carried the first and second carriage classes . Vehicles with the type designation ET 56 (multiple unit) and EM 56 (intermediate car) were discontinued. They were mainly used in suburban traffic in Stuttgart and around Heidelberg.
development
Technically, the ET 56 was seen as a transition series from pre-war to post-war designs. The technology was based in many points on the technology of the prewar series ET 25 , ET 31/32 and especially ET 55 . Motors and transformers from war-damaged railcars of this series were used. The appearance, on the other hand, corresponded to that of the young Federal Railway, as the V 200 , the VT 08 5 and the ETA 176 showed. The driver's cab was slightly lower than that of the VT 08 5 , which was reflected in the larger front windows. The same head shape was also used in the later built ET 30 .
history
In 1970 all railcars were relocated to Heidelberg. In order to be able to use them better there, the peg bearing drives were revised and the translation changed so that they could reach 110 km / h. In 1968, the numbers of the multiple units and side cars were changed to the new UIC class designation 456 (or 856 for the non-powered intermediate cars). Originally the car bodies were red, the roofs gray and the apron painted black. As with the diesel railcars, there was a black band around the front window. But this disappeared in the 1970s. The ocean blue-beige color scheme common in the late 1970s was only given to the 456 106. The railcars were always based in Tübingen and Heidelberg.
Constructive features
The car bodies were designed as self-supporting tubes. They had aprons and a closed floor pan in which the electrical units were housed. The bogies had welded sheet metal frames. The wagons of a unit were closely coupled and had Scharfenberg couplings on the fronts, with the help of which several units could be coupled to form longer train formations.
Whereabouts
No unity has been preserved.
DB class 456 multiple unit entering the Binau tunnel
DB class 456 multiple unit in Osterburken station
ET 56 in Heilbronn (1970)
literature
- Thomas Estler: Series ET 30 / ET 56 , Transpress, Stuttgart 2000, ISBN 3-613-71139-7 .
- Alfred B. Gottwaldt: 100 years of German electric locomotives. Franckh'sche Verlagshandlung, Stuttgart 1979, ISBN 3-440-04696-6 .
Web links
- 456 series
- The BR 456 electric multiple unit ( Memento from October 17, 2009 in the Internet Archive )
- BR456 in numbers ( Memento from November 19, 2005 in the Internet Archive )