DB 712 001
DB class 712 | |
---|---|
DB tunnel test van 712 001 at the Karlsruhe depot 1985
|
|
Numbering: | 712 001 |
Number: | 1 |
Year of construction (s): | 1934 as VT 137 1965 conversion to a tunnel measuring vehicle |
Axis formula : | 2'Bo ' |
Gauge : | 1435 mm ( standard gauge ) |
Length over buffers: | 21,880 mm |
Service mass: | 49.1 t |
Top speed: | 100 km / h |
Installed capacity: | 412 kW |
From 1965 to 1993 , the Deutsche Bundesbahn used a tunnel measuring vehicle under the series designation 712 , which was also known as the "tunnel hedgehog" because of its characteristic appearance. In addition to mechanical measuring devices for measuring the tunnel profile, it also had a measuring pantograph with which the height of the overhead line could be measured. The vehicle was initially painted red and was repainted in the 1980s in the uniform yellow of the railway service vehicles . The railcar was converted from the VT 38 002 ( formerly DR 137 158 ) in 1965 into the "6210 Kar" tunnel test vehicle and is now in the Bochum-Dahlhausen Railway Museum .
The 712 001 has a diesel-electric drive with a low-speed gearshift.
In 1993 the 712 002 replaced the "tunnel hedgehog" with electronic profile measuring devices.