VAG series DT1

Nuremberg U-Bahn series DT1
DT1
Numbering:	401 / 402-403 / 404 433/434, 443/444 449 / 450-527 / 528
Number:	64 built 42 in stock
Manufacturer:	AEG , MAN , Siemens
Year of construction (s):	1970-1984
Retirement:	2010 (1st series)
Axis formula :	B'B '+ B'B'
Gauge :	1435 mm ( standard gauge )
Length over coupling:	37,150 mm
Height:	3,530 mm
Width:	2,900 mm
Trunnion Distance:	12,000 mm
Bogie axle base:	2,100 mm
Empty mass:	52.5 t
Top speed:	80 km / h
Hourly output :	DC version: 4 × 180 kW = 720 kW Three-phase version: 4 × 195 kW = 780 kW
Acceleration:	1.4 m / s²
Driving wheel diameter:	900 mm
Motor type:	DC version : 1JB 2222 1KB 2326 three-phase version : 1TB 2027
Power system :	750 V DC
Power transmission:	Lateral power rail coated from below
Brake:	pneumatic and electropneumatic brakes , spring-loaded , magnetic rail and resistance brakes
Seats:	98
Standing room:	192

The VAG DT1 series is the oldest vehicle generation on the Nuremberg subway . It largely corresponds to the type A of the Munich subway and with a car body that is clearly adapted to the tunnel profile there, the type U of the Vienna subway .

development

When the Nuremberg city council decided in favor of a fully-fledged subway in 1965 , the builders then opted for a fleet of vehicles that is largely identical to that of the Munich subway, which was also being built at the time. The vehicle data of the type designated as DT1 (DT stands for double multiple unit) corresponded almost exactly to those of the type A from the state capital.

The vehicles were delivered between 1970 and 1984 and were given the car numbers 401/402 to 527/528. Apart from the red and white paintwork (as opposed to blue and white in Munich), the biggest difference was that the Nuremberg cars also have an auxiliary pantograph between the individual cars for workshop trips, as well as magnetic rail brakes . The vehicles delivered from 1980 (465/466 ff.) Were the first vehicles of their kind to have a three-phase drive .

The table gives an overview of the delivery of the individual series:

series	Wagon numbers	Delivery period
1	401 / 402-427 / 428	1970-1971
2	429 / 430-447 / 448	1975
3	449 / 450-463 / 464	1979
4th	465 / 466-491 / 492	1980
5	493 / 494-507 / 508	1981-1982
6th	509 / 510-527 / 528	1983-1984

construction

Interior of a DT1

The car body is made from extruded profiles and aluminum sheets using a lightweight construction. There are three double-leaf swivel sliding doors on each trolley and side, which can be opened independently of one another. The clear width of the doors operated by compressed air is 1,300 mm. The spacious driver's cabs also have one door on each side of the car.

Inside the car there is a 2 + 2 seating arrangement, with a single car each comprising twelve compartments.

The original vehicle paintwork was red with a surrounding white decorative stripe below the window front , which earned them the name Pegnitzpfeil . In the meantime, however, the DT1s are being adapted to the current VAG design, which was introduced with the successor series DT2 , during the main inspections .

The vehicles are powered by a 180 (up to 463/464) or 195 kW motor (from 465/466) mounted lengthways on the bogie. The pantographs are attached to the two outer bogies. An electronic thyristor control regulates the motor-driven cam switch mechanism .

Conversions

Railcar 470 of the Nuremberg U-Bahn in the new color scheme

In the course of time, the vehicles were rebuilt again and again, either to test technical innovations in practice or to adapt the vehicles to later production series.

Since the delivery of the car 449/450 are as destination displays automatic conveyor belts used in place of previously used signs direction; all vehicles with the old system were then converted. The armrests installed in all vehicles were gradually removed due to increasing vandalism. Since 1997 all vehicles have an emergency intercom system in the door area. With the delivery of the DT3 , all vehicles with the exception of the first series were equipped with video monitoring of the passenger area, sensitive door edges, an optical and acoustic door closing announcement and a digital stop announcement. From the beginning of 2010 to the beginning of 2011, the high-maintenance roller tape displays on all DT1 trains with three-phase drive (from wagon number 465/466) were replaced by digital LED displays.

Vehicle exchange

It has already happened several times in the history of the Nuremberg and Munich subways that one company lent the other vehicles for certain reasons, which was possible due to the identical structure of the vehicles. After their guest performance, the multiple units involved received a city coat of arms next to the driver's door as a sign of their commitment, which has, however, disappeared again due to repainting in recent years.

The table provides an overview of the exchange cars, the duration of their guest performance and the occasion. The Munich wagons that were taken over by VAG and no longer returned are not listed. These vehicles have already been scrapped.

exchange	Duration	occasion	vehicles
Nuremberg → Munich	August 6, 1972 to September 11, 1972	1972 Summer Olympics	401/402, 403/404, 409/410, 411/412
Munich → Nuremberg	March 1978 to September 6, 1978	Extension of the U1 to the Weißer Turm	6130/7130, 6131/7131, 6148/7148
Munich → Nuremberg	October 28, 1978 to April 1979	Kirchentag and Christkindlesmarkt	6128/7128, 6133/7133, 6134/7134
Nuremberg → Munich	November 19, 1980	Pope visit	423/424, 425/426, 427/428
Munich → Nuremberg	October 4, 2006 to October 14, 2008	Rental vehicles during the DT2 conversions	6103/7103, 6104/7104, 6108/7108, 6126/7126

Retirement

The first vehicle to be retired was car 447 of DT unit 447/448 after a fire in 1983. The still intact car 448 served as a test vehicle until it was scrapped in 2006. a. for the interior design of the DT2 and DT3 series. In 2010, the DC double multiple units of the first series delivered in 1970 (DT 401/402 to 427/428), with the exception of units 401/402 and 403/404 intended as museum vehicles, were retired and scrapped. In 2012, the DC double multiple units of the second series delivered in 1975 (DT 429/430 to 445/446), with the exception of the double multiple units 433/434 and 443/444 still in passenger service, were retired and scrapped.

See also

• BVG series F - Comparable double multiple unit of the Berlin subway

literature

• Martin Pabst: U- and S-Bahn vehicles in Germany . 1st edition. GeraMond Verlag, Munich 2000, ISBN 3-932785-18-5 .

Web links

Commons : VAG Series DT1  - Collection of Pictures, Videos and Audio Files

• Vehicles of the Nuremberg subway on local traffic Franconia (private)

Individual evidence

1. ↑ VAG Nürnberg (Ed.): The future is digital ( Memento of the original from February 11, 2011 in the Internet Archive ) Info: The  archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF file; 713 kB) . In: VAG Mobil . No. 1, 2010, p. 8.
2. ↑ ^{a b} Uli von Stockhausen: From DT1 to DT3-F. First part: the DT1 underground car . In: Friends of the Nuremberg-Fürth tram (ed.): The Straßaboh . No. 3 . Nuremberg October 2010, p. 54 f .
3. ↑ VAG Nürnberg (Ed.): Endstation Schrottplatz: In 2010, VAG decommissioned twelve vehicles of the first subway series  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.   . Press release from December 1, 2010.