London Underground 1973 Stock

London Underground 1973 Stock
Refurbished 1973 Stock train at Hillingdon
The interior of a refurbished 1973 Stock car
Stock typeDeep-level tube
In service19 July 1975 – present
ManufacturerMetro-Cammell[1]
Built atWashwood Heath, Birmingham, England[1]
Replaced1959 Stock
Constructed1974–1977[1]
RefurbishedBombardier Prorail (at Horbury railway works) 1996–2001[1]
Number built175 units (87+12 trains)
Successor2024 Stock
Formation3 cars per unit, 2 units per train
Capacity684 per train (228 seated)[1]
DepotsNorthfields
Lines servedPiccadilly
Specifications
Train length106.810 m (350 ft 5.1 in)
Car length
  • DM 17.473 m (57 ft 3.9 in)
  • UNDM/T 17.676 m (57 ft 11.9 in)
Width2.629 m (8 ft 7.5 in)
Height2.888 m (9 ft 5.7 in)
Maximum speed72 km/h (45 mph)
Weight
  • DM 27.15 long tons (27.59 t; 30.41 short tons)
  • UNDM 26.16 long tons (26.58 t; 29.30 short tons)
  • T 18.16 long tons (18.45 t; 20.34 short tons)
Traction systemPneumatic single camshaft (GEC Traction)[1]
Traction motorsLT118 DC motor (Brush Traction)[1]
Electric system(s)Fourth rail630 V DC
Current collector(s)Contact shoe
Track gauge4 ft 8+12 in (1,435 mm) standard gauge

The London Underground 1973 Stock is a type of rolling stock used on the Piccadilly line of the London Underground. It was introduced into service in 1975 with the extension of the line to Hatton Cross, followed by a further extension to Heathrow Central in 1977. A total of 86 six-car trains were built.

The trains were built by Metro-Cammell between 1974 and 1977, and were refurbished by Bombardier Transportation between 1996 and 2001. They are some of the oldest trains running on the Underground, and in Britain as a whole, second only to the 1972 Stock running on the Bakerloo line.

  1. ^ a b c d e f g Neil, Graham (4 August 2015). "London Underground Rolling Stock Information Sheet" (PDF). WhatDoTheyKnow. Retrieved 17 April 2016.