London Underground A60 and A62 Stock
| London Underground A60 and A62 Stock | |
|---|---|
Metropolitan line A Stock train at Chorleywood in 2012 | |
The interior of a refurbished A Stock car | |
| In service | 12 June 1961 – 26 September 2012 |
| Manufacturer | Cravens |
| Built at | Sheffield, England |
| Replaced | T Stock F Stock P Stock 1938 Stock |
| Constructed | 1960–1962 |
| Entered service | 1961–1963 |
| Refurbished | Adtranz (at Derby Litchurch Lane Works) 1994–1998 |
| Scrapped | 1987/1994/2011–2012/2018 |
| Number built | 58 trains |
| Number preserved | 1 car |
| Number scrapped | 57 trains + 6 cars |
| Successor | |
| Formation | DM-T-T-DM (per unit) |
| Fleet numbers | DM: 5000-5233 T: 6000-6233 |
| Capacity | DM: 54 seats + 4 tip-up seats T: 58 seats |
| Operators | London Underground |
| Depots | Neasden |
| Lines served | |
| Specifications | |
| Car body construction | Aluminium |
| Train length | 212 ft (64.62 m) (4 cars) |
| Car length | 53 ft .5 in (16.2 m) |
| Width | 9 ft 8 in (2.9 m) |
| Height | 12 ft 1 in (3.7 m) |
| Entry | Level |
| Doors | DM: two double and one single T: three double |
| Wheel diameter | 3 ft (914 mm) |
| Maximum speed | 70 mph (110 km/h) |
| Weight | DM: 32.1 t (31.6 long tons; 35.4 short tons) T: 21.8 t (21.5 long tons; 24.0 short tons) |
| Traction system | Pneumatic camshaft resistance control (Associated Electrical Industries) |
| Traction motors | Type LT114 300V DC series-wound motor (GEC @ Witton) |
| Transmission | 17:74 ratio |
| Auxiliaries | Motor-Alternator-Rectifier MG3005 (Associated Electrical Industries) |
| Electric system(s) | 630 V DC fourth rail |
| Current collector(s) | Contact shoe |
| UIC classification | Bo′Bo′+2′2′+2′2′+Bo′Bo′ |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
The London Underground A60 and A62 Stock, commonly referred to as A Stock, was a type of sub-surface rolling stock which operated on the Metropolitan line of the London Underground from 12 June 1961 to 26 September 2012, and on the East London line from 1977 until 22 December 2007, when it closed to be converted into London Overground (except in 1986, when one-man operation conversion of the fleet took place).
The stock was built in two batches (A60 and A62) by Cravens of Sheffield in the early 1960s, and replaced all other trains on the line.
At the time of its withdrawal in September 2012, the stock was the oldest on the Underground, having been in service for over 50 years. It was the only stock to have luggage racks, umbrella hooks and separate power and braking controls, and the last stock not to feature any automated announcements.