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| C69/C77 Stock | |
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| Manufacturer | Metro-Cammell |
| In service | 1969-present (C69) 1977-present (C77) |
| Lines served | Circle District Hammersmith & City |
| Length per car | DM 16.03 m T 14.94 m |
| Width | 2.92 m |
| Height | 3.68 m |
| Weight | DM 31.70 tonnes T 20.2 tonnes |
| Stock type | Subsurface |
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C Stock is the name given to the trains currently running on London Underground's Circle and Hammersmith & City lines as well as on the District Line between Edgware Road and Wimbledon. They are maintained at Hammersmith Depot.
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Construction
They were built in Birmingham by Metro-Cammell and delivered in two batches, known as C69 (1969-70) (35 trains) and C77 (1978) (eleven trains). The C69 Stock was purchased to allow the transfer of CO/CP Stock from the Circle Line and Hammersmith & City Line to the District Line (allowing the replacement of the District's Q Stock, the oldest of which dated back to 1923). The first C Stock train entered service on the Circle line in March 1969 and on the Hammersmith & City Line in September 1969.[citation needed]
The C77 Stock was purchased for the District Line's Edgware Road to Wimbledon service, which is unable to use the District Line's D Stock because of short platforms between High Street Kensington and Edgware Road. The introduction of the C77 Stock allowed the withdrawal of some of the CO/CP Stock.
Design
There are four sets of double doors per car side. When originally delivered, the cars were divided by partitions adjacent to each set of doors, with 2 facing pairs of transverse seats on each side of the aisle, giving them a claustrophobic feel and limited standing room. The partition wall contained a large back lit advertising space above the aisle opening. When the stock was refurbished in [1990-94] all these features were removed. Each car now features 4 seats against the sidewalls between each door, creating a much wider aisle. In 2001 a new seat moquette was introduced called the spatter moquette as it contained spattered paint style moquette which replaced the square box moquette. Recently the spatter moquette has begun to wear out producing a lot of dust, and an experiment has been used on certain C stock cars still using the spatter moquette but with grey covers instead of black ones, also new floors have been added.
Each six car train consists of 3 coupled two-car units, each of which features a cab at one end. This means all trains have three cabs. They are all painted in the London Underground corporate livery.
Announcer system
The C Stock trains are fitted with an automated announcer system which uses the same style of Emma Clarke's voice as the D78 stock. An example of the regular voice patterns on each of the 3 lines are as follows:
"This is Bayswater. This is a Circle Line train, via High Street Kensington and Victoria."
"This is Goldhawk Road. This is a Hammersmith and City Line train to Barking."
"This is Wimbledon Park. This is a District Line train to Edgware Road"
In December 2007, the Digital Voice Announcer (DVA) changed slightly to include St Pancras International and London Overground; however Emma Clarke's voice still is used. On doing this, the system has also taken the opportunity to change "Alight" for "Exit" (like on the Jubilee Line).[1]
In December 2009, the Digital Voice Announcer (DVA) was upgraded due to the Circle line extension. On doing this, the system has taken the opportunity to replace archaic phrases with updated versions. Emma Clarke no longer voices any of the recordings; a new voice-over artist has been selected.
Numbering
C69 Stock DMs were numbered 5501-5606, and trailers 6601-6606. 5606 and 6606 were scrapped in the 1990s. The C77s are 5701-5733 and 6701-6733.
Planned withdrawal
The C Stock will be replaced between 2011 and 2013 by the new London Underground S Stock trains.
References
External links
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Wikimedia Commons has media related to: London Underground C69 Stock |
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