London Underground 1973 Stock
|Length per car||DM 17,676 mm
UNDM/T 17,473 mm
|Weight||DM 27.15 tons
UNDM 26.16 tons
T 18.16 tons
|Stock type||Deep-level tube|
|London Transport portal|
The 1973 Tube Stock is a class of deep-level train that operates on the Piccadilly line of the London Underground. It was introduced into service in 1975 coinciding with the extension of the line to Hatton Cross in 1975, followed by Heathrow Central in 1977.
In the early 1970s London Transport placed an order of 88 trains to replace the 1959 stock, the 1938 stock and 1962 stock vehicles which previously operated on the Piccadilly line. Built between 1972 and 1975 by Metro Cammell in Birmingham, the first unit entered service on 19 July 1975 and the last was introduced by 1977. The trains featured longer cars and larger door space than the previous ones, being designed for airport customers.
The stock was refurbished by Bombardier Transportation between 1996 and 2001. Changes included the removal of transverse seating, strap hangers replaced with grab bars, new floor material and a full repaint into London Underground's corporate livery.
The last unrefurbished train ran in early 2001 before re-entering service as a refurbished train in July of that year. In 2005 the seat covers were replaced with a royal blue moquette.
Unit formation and operation
The peak Piccadilly line service requires 76 trains in operation. Each train is made up of two units of three cars. Some units are also formed without a middle cab and are referred to as being "double ended".
All trains in passenger service operate as two units, trains are only permitted to move as a single unit in depots. However one single double ended unit was used to operate the peak-hour Aldwych branch shuttle service until the branch closed in 1994.
Like all London Underground trains, the stock operate on a four-rail 630V DC power system.
|100 - 253||864 - 897||300 - 453||500 - 696|
In November 2006, the system was introduced with an automated announcer featuring the voice of Julie Berry, with a simultaneous upgrade to the dot matrix displays in the carriages. The driver can select between two settings: "commuter" and "tourist". In addition to this, the driver can add extra announcements through a code for example "please stand clear of the doors" or "Let customers off the train first please"
The "Alight" sections include:
- King's Cross St. Pancras tube station: "The Royal National Institute of the Blind"
- Russell Square tube station (or Holborn on some trains): "The British Museum"
- Covent Garden tube station: "London's Transport Museum"
- Green Park tube station: "Buckingham Palace"
- Knightsbridge tube station: "Harrods"
- South Kensington tube station: "The museums and Royal Albert Hall"
- Earls Court tube station: "Earls Court Exhibition Centre"
These "alights" are not included in the "commuter" setting.
Certain stations include announcements warning of the gap between the train and platform. Interchanges with other London Underground lines and other rail services are also included in announcements, such as Kings Cross St Pancras which includes St Pancras International.
The 1973 Stock was scheduled to be replaced in 2014 by a new build of trains, but the tender for this project was cancelled in 2010 before any company had bid for the work.
Subsequently, London Underground invited Alstom, Bombardier and Siemens to develop a new concept of lightweight, low-energy, semi-articulated train for the deep-level lines, provisionally called "Evo" (for 'evolution'). So far only Siemens has publicised an outline design, which would feature air-conditioning and would also have battery power enabling the train to run on to the next station if fourth-rail power was lost. It would have a lower floor and 11% higher passenger capacity than the present tube stock. There would be a weight saving of 30 tonnes, and the trains would be 17% more energy-efficient with air-conditioning included, or 30% more energy-efficient without it. The intention is that these new trains would replace the 1973 stock, as well as the 1972 stock of the Bakerloo line.
- "Piccadilly line facts". Transport for London. Retrieved 13 August 2012.
- "London Underground 1973 Tube Stock". TrainWeb. Retrieved 13 August 2012.
- "1973 tube stock". Square Wheels. 8 November 2010. Retrieved 13 August 2012.
- "1973". Transport for London. Retrieved 13 August 2012.
- "Key facts". Transport for London. Retrieved 13 August 2012.
- "Transforming the Tube" (PDF). Transport for London. July 2008. Retrieved 28 May 2009.
- Waboso, David (December 2010). "Transforming the tube". Modern Railways (London). p. 44.
- "Siemens unveils London Underground concept train". Railway Gazette International (London). 20 June 2011.
- "Siemens reveals innovative air-con for deep Tube trains". Rail (673) (Peterborough). 29 June 2011. p. 12.
|Wikimedia Commons has media related to London Underground 1973 Stock.|
- Transport for London - 1973 stock specifications
- Tubeprune - 1973 Tube Stock
- London Transport Museum Photographic Archive