page_title: District Railway electric multiple units
section_title: G Stock (1923)
hierarchical_section_title: District Railway electric multiple units / 1920s Reconstruction / G Stock (1923)
caption_attribution_description: English: The London Underground Q23 (ex District Railway G Stock) at London Transport Museum at Covert Garden
context_page_description: District Railway electric multiple units were used on London's Metropolitan District Railway after the lines were electrified in the early 20th century.
  After a joint experiment with the Metropolitan Railway with which they operated the inner circle in London, a four rail DC system was chosen. Following the testing of two prototype trains in 1903, electric multiple units were ordered to replace the steam locomotives and carriages. By the end of 1905 all passenger services used electric traction.
  More cars were purchased in 1910, 1912, 1913 and 1920 to supplement an expanding railway. In 1923 steel cars were bought to replace some of the early wooden units, in 1926 further units allowed the replacement of most of the early wooden trailer units.
  In 1933 the railway was amalgamated with the other London underground railway companies to form the London Passenger Transport Board. More cars were ordered to expand the service and another reconstruction programme in 1938 upgraded most the stock to air-operated sliding doors and replace the remainder of the original wooden cars.
context_section_description: The first fifty motor cars were ordered in 1923 from Gloucester RC&W. These new bodies were similar in appearance to the older District stock but had an additional double sliding door on each side and the clerestory roof carried forward to the car ends, rather than rounded off. Forty two motor cars were converted into trailers and another eight were scrapped, the equipment removed from these cars fitted into the new bodies. 
  From 1939–59 two G Stock cars ran as single car units on the Acton Town to South Acton shuttle. The remainder were converted into Q23 Stock in the late 1930s and withdrawn in 1962.
  About this time the current stock was classified as follows:
caption: A G Stock car converted in Q23 Stock is preserved as a static exhibit at London Transport Museum at Covert Garden.
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