page_title: InterCity 125
section_title: Similar products
hierarchical_section_title: InterCity 125 / Similar products
caption_attribution_description: English: Countrylink XPT at Sydney Central station
context_page_description: The InterCity 125 is a diesel-powered passenger train built by British Rail Engineering Limited between 1975 and 1982. Each set is made up of two Class 43 power cars, one at each end and a rake of Mark 3 carriages. The name is derived from its top operational speed of 125 mph. Initially the sets were classified as Classes 253 and 254.
  As of December 2019, InterCity 125s remained in service with Abellio ScotRail, CrossCountry, East Midlands Railway, Great Western Railway and Network Rail.
context_section_description: In 1982 the State Rail Authority in Australia placed the first of what would ultimately be 19 power cars and 60 carriages into service.
  Built locally by Comeng and ABB Transportation, the HST design was significantly modified, with the power cars being 50 cm (19.7 in) shorter, the Paxman Valenta engine downrated from 2,250 to 2,000 bhp (1,680 to 1,490 kW), gearing lowered for a top operating speed of 160 km/h (99 mph), suspension modified to operate on inferior track, and air filters and the cooling system modified to cater for hotter and dustier Australian conditions. However, the XPT is theoretically capable of reaching speeds of 200 km/h (120 mph). A different light cluster was fitted along with three high-beam spotlights mounted to the roof. The carriages were based on a Budd design, with the British Rail Mark 3s considered unsuitable.
  In 1986 agreement was reached to build a fleet of XPTs for the State Railway of Thailand. To allow it to be built to the narrower 1,000 mm (3 ft 3 ³⁄₈ in) gauge and retain the same fuel capacity, it was proposed to extend the power cars by 2.7 metres to 20 metres and mount them on Bo-Bo-Bo bogies. The negotiations were sufficiently advanced for the Prime Minister of Thailand to announce it on television, however the Australian Department of Trade withdrew its support at the last moment and the deal fell through.
caption: A NSW TrainLink XPT at Central station, Sydney in January 2017
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