DR series ET 88

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Prussian ET 1001 to ET 1004
DR series ET 88
ET 88
ET 88
Numbering: ET 1001 to ET 1004
from 1923: 507–510 Breslau
from 1932: elT 1007–1010
from 1940: ET 88 01–04
Number: 4th
Manufacturer: Linke-Hoffmann-Werke , Breslau
Siemens-Schuckert
Year of construction (s): 1920
Retirement: from 1945
Axis formula : (A1) (1A)
Genre : C4
Gauge : 1435 mm ( standard gauge )
Length over buffers: 17,060 mm
Service mass: 61.5 t
Wheel set mass : 17.1 t
Top speed: 65 km / h
Hourly output : 360 kW
Driving wheel diameter: 1,200 mm
Impeller diameter: 1,000 mm
Power system : 15 kV, 16 2/3 Hz
Power transmission: Overhead line
Number of traction motors: 2
Seats: 68

The ET 1001 to ET 1004 Breslau were electric railcars of the Prussian State Railways . The Deutsche Reichsbahn classified the vehicles as ET 507 to 510 Breslau, from 1932 as elT 1007 to 1010 and from 1940 in the ET 88 series .

history

As early as 1913, the Prussian State Railroad placed the development order for a railcar , which was to be used on the Berlin city, ring and suburban railways , which were yet to be electrified , as an alternative to the propulsion units already planned. The background was the continued use of so-called Stadtbahnpärchen (short-coupled three-axle Prussian compartment cars ) in the train compositions , which was sought for reasons of economy . Because of the First World War , the first two vehicles could not be completed until 1920.

In October 1920 the first two railcars were put into service and housed in the Silesian depot Nieder Salzbrunn , which later became the locomotive station of the Dittersbach depot . From there, they were used on a trial basis in the Waldenburg area. After a direct current system with a lateral conductor rail was favored for the electrification of Berlin's city, ring and suburban railways in 1921 , the vehicles remained in Silesia together with the two railcars delivered in early 1922, where they served the Nieder Salzbrunn – Halbstadt connection from then on .

In the spring of 1945, the electric vehicles on the Silesian routes were evacuated over Bohemia before the approaching war front. After the end of the Second World War , three more railcars were added to the inventory of the Deutsche Bundesbahn ; they were used on the Regensburg - Landshut section . A vehicle was lost in the chaos of war.

However, the Deutsche Bundesbahn decommissioned the three remaining railcars as a splinter series towards the end of the 1950s. None of the ET 88 railcars have been preserved in a museum.

commitment

In Silesia, the four vehicles were used almost exclusively between Nieder Salzbrunn and the Bohemian Halbstadt and from 1921 replaced the ET 87 series railcars previously used there . The reason for this was that the drive motors of the ET 87 were not up to the demanding driving profile and therefore tended to overheat. However, the ET 88 only had one driver's cab and since cross-border traffic had also decreased sharply with the establishment of Czechoslovakia in 1918 and the Czechoslovak State Railways ČSD demanded a high fee for each axle-kilometer for the use of their section, the operation of two railcars with coupled in between Light rail cars extremely uneconomical. Therefore, from 1925, a second driver's cab was installed so that the sidecars and control cars could remain in the Friedland border station .

At the beginning of the thirties, six multiple units of the Lichterfeld suburban railway reached Silesia, which were converted into control and trailer cars for use in the train composition with the ET 88 . The now no longer needed three-axle light rail vehicles could be made available for general traffic.

literature

  • Peter Glanert: Berlin - Silesia - Bavaria, The ET 88 - a class of railcars with an interesting history . Part 2 railway history , No. 40 . DGEG Medien GmbH, 2010, ISSN  1611-6283 .
  • Horst Joachim Obermayer: Paperback German railcars . 6th edition Franckh-Kosmos, Stuttgart 1986. ISBN 3-440-04054-2 .
  • H.-J. Wenzel, G. Greß: The railway in Silesia . In: Railway courier . Special 3/2005. EK-Verlag, 2005, ISSN  0170-5288 .

Web links

Individual evidence

  1. ^ NN: On the electrification of the Berlin city and ring railway. Electric power companies and railways 1920, p. 288
  2. ^ Photo of ET 88 02 1957 in Landshut on the Joachim Schmidt Railway Foundation