MVG series A

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Munich subway / Nuremberg subway
series A
A-car 356.jpg
Number: 193 double railcars
(386 single cars)
Manufacturer: MAN , O&K , Rathgeber , WMD
Year of construction (s): 1967-1983
Axis formula : B'B '+ B'B'
Gauge : 1435 mm ( standard gauge )
Length over coupling: 37,150 mm
Height: 3,550 mm
Width: 2,900 mm
Trunnion Distance: 12,000 mm
Bogie axle base: 2,100 mm
Empty mass: 51.6 t
Top speed: 80 km / h
Hourly output : 4 × 180 kW = 720 kW
Power system : 750 V DC
Power transmission: Busbar coated on the side from below
Control: manual, semi-automatic
Seats: 98
Standing room: 192

The A series is the oldest series in the Munich subway . These vehicles, which were delivered in series from 1970, come outside the Bavarian capital in a slightly different version also on the Nuremberg U-Bahn (referred to there as the DT1 series) and with a car body clearly adapted to the Vienna tunnel profile on the Vienna U-Bahn ( Type U ) is used. In the meantime, however, due to adaptations to local conditions, it is no longer possible to use the vehicles coupled to one another in passenger operation.

development

In 1967 Waggon- und Maschinenbau GmbH Donauwörth (WMD, today Bombardier Transportation ) delivered a total of two prototypes and the Josef Rathgeber wagon factory delivered one to the former transport company of Stadtwerke München, today MVG . To later differentiate them from the series vehicles, they were given the designation A1 .

Type Numbers number Years of construction
A1 091-093 3 1967
A2.1 101-151 51 1970
A2.2 161-178 17th 1974
A2.3 201-253 53 1978
A2.5 301-348 48 1982
A2.6 351-371 21st 1983

After successful testing of the 6091/7091, 6092/7092 and 6093/7093 double multiple units, series delivery took place from 1970. In addition to the two existing manufacturers, MAN and O&K also participated in the construction of the vehicles.

By 1983, a total of 190 double multiple units of the series cars designated as A2 were built, which were again subdivided into five sub-types (A2.1 to A2.6, where A2.4 was omitted). These substructures differ only slightly from one another - among other things, the A2.1 series only has one vertical handrail in each of the entry areas, the later two each, and the first series also had no viewing windows between the car halves, these were retrofitted later and are therefore smaller than with the later series. While the prototypes of the A1 series still had leaf suspension, all subsequent underground cars were equipped with air suspension. The prototypes also had simple handles between the seat compartments , while the series cars are equipped with handrails up to the roof of the car.

Of the total of 193 double multiple units built, six were sold to VAG Nürnberg in 2003 (which were scrapped in 2009), four more were loaned there in 2006 and returned to MVG in November 2007 and October 2008. Three other units have so far been scrapped. The front part of car No. 7149, which was destroyed in a fire in 1983, can be viewed today in the Munich Fire Brigade Museum . The prototype car No. 6092 is on display in the traffic center of the Deutsches Museum . Car no. 091 is reserved for the MVG Museum , car no. 093 still runs in normal passenger service, but with a car body that has now been renewed.

Structure and technology

As far as the car body is concerned, the vehicles are 37,150 mm long and 2,900 mm wide, the individual wagons each measure exactly 18,000 mm and are connected to one another via Scharfenberg intermediate buffer couplings .

The car body is lightweight aluminum from extruded sections manufactured and aluminum sheets. On each side of the car there are three double-leaf swing-sliding doors operated by compressed air with a clear width of 1,300 mm, and one door on each side of the driver's cab. By pulling the handle of a passenger door (in contrast to the B series ) only the respective door leaf opens , so that you have to pull on both handles of a double pivoting sliding door to open both halves. The interior is clad with imitation wood. The seats in the interior are arranged face-to-face. The seat cushions are covered with blue synthetic leather .

Interior of an A-car

The vehicles are driven by a 180 kW electric motor attached to each bogie . In contrast to the B series, this is along the direction of travel and mechanically connects the two axles of a bogie (wheelset formula B'B '). The power supplied via each of the outer bogie attached current collector having a laterally mounted on the track from the bottom bus bar sweeps; Since all four pantographs are electrically connected via the close coupling, gaps of up to 30 m can be bridged without the vehicle being idle. The multiple control of the vehicles allows up to three double railcars to be operated in a train.

The electrical contacts of the Scharfenberg coupling are asymmetrical, which means that the cars each have a north and a south end. The north half of a wagon is designated with 6xxx, the south half with 7xxx. The north and south ends can be coupled together. However, it is not possible to couple a north and a north end or a south and a south end, which is why reversing and triangular trips must be avoided in the entire network of the Munich subway. The contacts of the couplings of the DT1 series of the Nuremberg metro, however, have meanwhile been converted to symmetry , which is why coupling A-cars and DT1 from Nuremberg is no longer possible.

The A series has no light barriers, so the driver has to handle the train manually. To do this, some of the drivers leave the driver's cab and stand on the platform to have a better view of the entire train.

Except for the door closing warning tone and the associated warning light, as well as anti-trap protection, the A series has hardly been modernized. With the introduction of the new color scheme for the Munich subway in 1981, some A-cars were gradually repainted in this. The entire stock has not been repainted to this day, which is why both color variants can still be found in the company.

In the course of the introduction of the Munich window in the subway and tram, only the last two series of the A, A2.5 and A2.6 series received the passenger information system and thus automatic announcements.

See also

  • BVG series F - comparable double multiple unit of the Berlin U-Bahn (F74, F76, F79)

literature

  • Martin Pabst: U- and S-Bahn vehicles in Germany . 1st edition, GeraMond Verlag, Munich 2000, ISBN 3-932785-18-5
  • Wolfgang Pischek, Holger Junghardt: The Munich U-Bahn - underground through the Bavarian capital . Munich 2002 (2nd edition), ISBN 3-7654-7194-1

Web links

Commons : U-Bahn Munich Type A  - Collection of images, videos and audio files

Individual evidence

  1. Half of the railcar 6092 of the first Munich subway on the homepage of the Deutsches Museum
  2. U4 On the trail of the mystery. Retrieved December 12, 2019 .