London Underground C69 and C77 Stock

London Underground C69 and C77 Stock
A refurbished C Stock at High Street Kensington
The interior of a refurbished C Stock
In service	28 September 1970 – 3 June 2014
Manufacturer	Metro-Cammell[1]
Built at	Washwood Heath, England[1]
Replaced	O and P Stock
Refurbishment	1991–1994
Successor	S7 Stock
Formation	2 x 4 cars per unit, 2 units per train
Capacity	821 per train
Line(s) served	Circle (1970–2014) District (1978–2014) Hammersmith & City (1990–2014) Metropolitan (1970–1990)
Specifications
Car body construction	Aluminium
Car length	DM 16.0 m (52 ft 6 in) T 14.94 m (49 ft 0 in)
Width	2.92 m (9 ft 7 in)
Height	3.68 m (12 ft 1 in)
Maximum speed	DM 31.70 t (31.20 long tons; 34.94 short tons) T 20.2 t (19.9 long tons; 22.3 short tons)
Traction system	Pneumatic double camshaft (C69: English Electric-AEI Traction C77: GEC Traction)[1]
Traction motors	LT117 DC motor (Brush Traction)[1]
Current collection method	Contact shoe
Seating	198 per train
Stock type	Subsurface

The London Underground C69 and C77 Stock, commonly known as the C Stock, was a type of below ground rolling stock used on the Circle, District and Hammersmith & City (formerly Metropolitan) lines of the London Underground between 1970 and 2014. These were replaced with S stock trains, which also run routes on the District, Hammersmith and City, Circle and Metropolitan lines.

Stop of usage

The C Stock was replaced between 2012 and 2014 by S7 Stock.^[2]

A tour took place on 29 June 2014 showing a lot of the area covered by the stock during its time on the rails. One train (5721+5531+5578) was kept for this tour with one held as a reserve in case of breakdown (5533+5517+5592).^[3]

Post-withdrawal use

Transport for London has given away two C77 driving motors to educational establishments, and another from the same sub-series to the London Transport Museum: these are 5701, 5720 and 5721.

Sub-series	Car number(s)	Notes
C77 Stock	5701	Donated by Transport for London to the Royal Greenwich UTC on 28 June 2013.[4]
C77 Stock	5720	Part of a playground at the Plumcroft Primary School, Plumstead.[5]
C77 Stock	5721	Exhibit at the London Transport Museum's Acton depot.[6]

References

1. "Rolling Stock Data Sheet, London Underground (First Edition)" (PDF). WhatDoTheyKnow. 27 March 2011. Retrieved 17 April 2016.
2. "Tube Upgrade Plan" (PDF). Transport for London. February 2012. Archived from the original (PDF) on 18 January 2012. Retrieved 19 February 2012.
3. C-Stock finally bows out with farwell tour Rail issue 752 9 July 2014 page 25
4. Underground News (620). London Underground Railway Society: 439. August 2013. {{cite journal}}: Missing or empty |title= (help)
5. Underground News (634). London Underground Railway Society: 540. October 2014. {{cite journal}}: Missing or empty |title= (help)
6. C Stock added to LTM collection Rail Express issue 244 September 2016 page 30