page_title: British Rail Mark 3
section_title: Future
hierarchical_section_title: British Rail Mark 3 / Future
caption_attribution_description: English: Great Western Railway mark 3 coaches fitted with new power doors. On the left is Trailer Standard 48111 and on the right Trailer Guard Standard 49101.
context_page_description: The British Rail Mark 3 is a type of passenger carriage developed in response to growing competition from airlines and the car in the 1970s. A variant of the Mark 3 became the rolling stock for the High Speed Train.
  Originally conceived as locomotive-hauled coaching stock, the first coaches built were for the prototype HST in 1972. Production coaches entered service between 1975 and 1988, and multiple-unit designs based on the Mark 3 bodyshell continued to be built until the early 1990s. Most of the surviving fleet of the Mark 3 and its derivatives are still in revenue service on the British railway network in 2020, however, as of 7 August 2020, 182 carriages have been sent for scrap.
context_section_description: Many of the Mark 3s are scheduled to be withdrawn by 2020. Great Western Railway and London North Eastern Railway sets were replaced by Class 800, 801 and 802 sets.
  The East Midlands Railway sets are also scheduled to be withdrawn by the end of 2020. Former Great Western Railway Mark 3s have been leased to Abellio ScotRail since 2018 for use on Edinburgh/Glasgow to Aberdeen/Inverness and Aberdeen to Inverness, routes. Great Western began trials of shortened HST sets with new power-operated external doors in 2018, and intend to run 11 of these 'Castle' sets on local services on the main lines.
  The Caledonian Sleeper Mark 3 sleeper sets were withdrawn in October 2019. Grand Central then withdrew their Mark 3s in 2017. These were transferred to East Midlands Trains.
  Great Western Railway and London North Eastern Railway withdrew its Mark 3 sets in 2019, with GWR reforming many Mark 3 sets as 4 car refurbished "Castle" sets. 
  Greater Anglia withdrew its Mark 3 sets in March 2020.
caption: Great Western Railway Mark 3s fitted with power doors in 2018
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