Replacement::British Rail Class 43 (HST)


Power::class    British::convert    Engines::paxman    Western::railway    Title::coast    Engine::service


Hitachi Class 800 Super Express undergoing testing at Old Dalby test track. These trains will partially replace the HST on the Great Western Main Line and the East Coast Main Line.

Built between 1975 and 1982, the fleet is now in its fourth decade, and a replacement for the High Speed Train is being sought. This project, the Intercity Express Programme (originally known as the HST2), is being spearheaded by the Department for Transport. A consortium headed by Hitachi will design and build the replacement Hitachi Super Express Train. Various formations are to be built, an electric version and a bi-mode diesel-electric in 5 or 9 carriage lengths. The initial batches will replace HSTs on the Great Western Main Line and East Coast Main Line Main Lines.

On the Greater Western franchise, the current fleet of HSTs is expected to remain in service until 2017, the scheduled date for introduction of the Intercity Express. Between 12 and 20 HST sets were to be retained and refurbished to carry on providing services between London and Devon and Cornwall, where no electrification is currently planned, and where the Class 800's engines would not be capable of negotiating the steep gradients along the South Devon Banks, through to the mid-2020s.<ref>{{#invoke:citation/CS1|citation |CitationClass=news }}</ref> A 2011 report concluded that the Mark 3 coaches could remain in service as late as 2035 with some minor rewiring and enhancements required under disability legislation.<ref>{{#invoke:citation/CS1|citation |CitationClass=news }}</ref> However, it was announced in March 2015 that, subject to approval and contract, the HSTs will now be replaced with a more powerful derivative of the bi-mode Class 800s.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Initially, high-speed DMUs from the Bombardier Voyager family as well as Alstom's Class 180 (Adelante) replaced numerous HSTs, but all locomotives and sets have been bought back into service as a result of increasing demand. Some will be cascaded to Abellio ScotRail to replace the Class 170 units on InterCity services in the region.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

British Rail Class 43 (HST) sections
Intro  History and background  Development and design  Buffered units  Engines  Life extension  Prototype  Operations  Replacement  See also  References  External links  

PREVIOUS: OperationsNEXT: See also