The Type DT2 is a two-car

electric multiple unit An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a numbe ...

(EMU) train type operated by the

Hamburger Hochbahn AG Hamburger Hochbahn AG (HHA), founded in 1911, operates the underground system and large parts of the bus system in Hamburg, Germany. History The HHA was founded by Siemens & Halske and AEG as a consortium on 27 May 1911. The first chairman w ...

on the

Hamburg U-Bahn The Hamburg U-Bahn is a rapid transit system serving the cities of Hamburg, Norderstedt and Ahrensburg in Germany. Although referred to by the term U-Bahn (the "U" commonly being understood as standing for "underground"), most of the system's ...

until 2015. They replaced the Type T and Type TU.

Technical specifications

The first trains had a ''Bo'1+1 Bo axle layout, with later trains built to an

articulated An articulated vehicle is a vehicle which has a permanent or semi-permanent pivot joint in its construction, allowing it to turn more sharply. There are many kinds, from heavy equipment to buses, trams and trains. Steam locomotives were someti ...

design, formed as two-car sets. Up to four sets can be coupled together to form a long train. The car body was constructed using lightweight steel, based on a design licensed from the American

Budd Company The Budd Company was a 20th-century metal fabricator, a major supplier of body components to the automobile industry, and a manufacturer of stainless steel passenger rail cars, airframes, missile and space vehicles, and various defense products ...

. They are equipped with

Kiepe Kiepe Electric GmbH (formerly Vossloh Kiepe) is a German manufacturer of electrical traction equipment for trams, trolleybuses other road and rail transport vehicles, as well as air-conditioning and heating systems, and conveyor device components. ...

-build

quill drive A quill is a writing tool made from a moulted flight feather (preferably a primary wing-feather) of a large bird. Quills were used for writing with ink before the invention of the dip pen, the metal-Nib (pen), nibbed pen, the fountain pen, and, ...

Interior

Seating arrangement consists of seating bays in a 2+2 layout. File:DT2-E Hamburg Innenraum.JPG, Interior of a refurbished "DT2E" unit

History

A total of 186 sets were delivered in five batches between 1962 and 1966. They were withdrawn after farewell runs through the entire network on November 28, 2015.

Refurbishment

Some sets underwent refurbishment from 1985 to 1987, which included replacement of the old cab ends and addition of fire-resistant interior fittings. A microprocessor-controlled

wheel slide protection Wheel slide protection and wheel slip protection are railway terms used to describe automatic systems used to detect and prevent wheel-slide during braking or wheel-slip during acceleration. This is analogous to ABS and traction control systems us ...

system was also retrofitted. These rebuilt units were designated as ''DT2.5-E''. As a result of the refurbishment the units could stay in service for another 20 years.

Preserved examples

One unrefurbished unit, set 604, was taken out of service in 2002 is being preserved for a later use as a museum car. In 2013 it had to be partly cannibalized since it was the only option to get spare parts for the DT2E cars that were still in service then. Shortly before they were scrapped in 2016 all of these parts were taken from the DT2E again to allow a re-completion of set 604 as soon as its restoration begins.

References

External links

DT2 farewell run - press release on hochbahn.de
{{Hamburg U bahn stock Hamburg U-Bahn Electric multiple units of Germany 750 V DC multiple units