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| G Stock | |
|---|---|
.jpg) G/Q23 stock at the London Transport Museum in 2009 | |
| In service | 1923–1971 |
| Manufacturer | GRC&W |
| Specifications | |
| Car length | 49 ft 2 in (14.99 m) |
| Width | 9 ft0+1⁄16 in (2.745 m) |
| Height | 12 ft3+1⁄2 in (3.747 m) |
| Weight | 33.6 long tons (34.1 t; 37.6 short tons) |
| Seating | 44 |
| Notes/references | |
 London transport portal | |
TheG Stock were 50electric multiple unittrain carriages built for theDistrict Railway in 1923 byGloucester RC&W.[1] They operated on theDistrict line of theLondon Underground until 1971 (with most cars being withdrawn in the early 1960s).
The G Stock was built to allow the scrapping of some of wooden-builtB Stock trailer cars which were in poor condition. Some steel-framed B Stock motor cars were converted to trailers, themselves being replaced by new G Stock motorcars. The G Stock consisted entirely of motor cars, all built with aclerestory roof similar in style to the B Stock with which they would work.
In 1938, forty-eight of these cars were rebuilt when theDistrict line was standardising its post-1923 stock and were reclassified asQ23 Stock.[2] A major part of theQ Stock project was the replacement of the potentially dangerous manually operated sliding doors (which could be opened by passengers between stations) with air operated doors controlled by the guard.[3]
The two remaining cars were rebuilt into single cars for use on theSouth Acton shuttle, replacing aB Stock car. These two cars, numbered 4167 and 4176, were not rebuilt into Q Stock and were classifiedG23 Stock.[2]
In 1965, several cars were renumbered by adding 100 to the number to avoid conflicting numbers with the1967 Stock being built for theVictoria line.
The majority of the cars were withdrawn in the early 1960s as CO/CP Stock trains transferred from the Metropolitan line started to become available. The last of the Q Stock was withdrawn in 1971.
Two driving motors have been preserved.
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