page_title: GWR 5700 Class
section_title: National Coal Board
hierarchical_section_title: GWR 5700 Class / Use after British Railways / National Coal Board
caption_attribution_description: English: An ex-GW '5700' 0-6-0PT working for the National Coal Board at Brithdir. No. 7754 was built in 12/30 and sold to the NCB in 1/59.
context_page_description: The GWR 5700 Class, or 57xx class, was a class of 0-6-0 pannier tank steam locomotive, built by the Great Western Railway and British Railways between 1929 and 1950. With 863 built, they were the most prolific class of the GWR, and one of the most numerous classes of British steam locomotive.
  Although officially designated by GWR as "light goods and shunting engines", they were also used for passenger working on branch, suburban, and shorter mainline journeys.
  They were distributed across most of the GWR network and, after nationalisation of the railways in 1948, across the British Railways Western Region, and also other regions.
  The 5700s were not as glamorous as the GWR Castles and Kings, but became just as much of an icon of the GWR.
  As a result of the 1955 Modernisation Plan, the 5700 Class was withdrawn from BR service between 1956 and 1966. Nineteen withdrawn locomotives were sold to London Transport and industry, of which ten were later preserved, along with six that were retrieved from scrapyards.
context_section_description: Between 1959 and 1965 the National Coal Board (NCB) bought five 5700s from BR for use at pits in South Wales, continuing a tradition of the GWR selling withdrawn pannier tank locomotives to the NCB. The engines retained their BR numbers. The NCB locomotives did not receive maintenance to match GWR standards and were run into the ground, saving the cost of expensive overhauls.
  One of the NCB 5700s, No. 7754, was the last in industrial service, and after working at various collieries was moved to Deep Duffryn Colliery at Mountain Ash in 1970, where an ex-GWR fitter kept it working until 1975 when a loose piston resulted in a blown cylinder cover. No. 7754 could still be seen on shed in 1980. The NCB donated No. 7754 to the National Museum Wales, who placed it on permanent loan to the Llangollen Railway. It is now owned by the Llangollen Railway Trust.
caption: No. 7754 working for the NCB in 1965
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