page_title: Govia Thameslink Railway
section_title: Rolling stock
hierarchical_section_title: Govia Thameslink Railway / Rolling stock
caption_attribution_description: English: A Thameslink Class 387 train
context_page_description: Govia Thameslink Railway is a train operating company that operates the Thameslink, Southern and Great Northern rail franchise in England. Within the franchise, GTR runs the Thameslink, Great Northern, Southern and Gatwick Express airport services.
  GTR is a subsidiary of Govia, which is itself a joint venture between the British Go-Ahead Group and French company Keolis.
context_section_description: In 2011 the consortium Cross London Trains Ltd. consisting of Siemens Project Ventures, 3i Infrastructure plc and Innisfree Ltd was announced as preferred bidder with Siemens to manufacture and maintain the rolling stock to run on the Thameslink routes from 2016. This was a politically controversial decision as the competing bidder Bombardier Transportation had a train factory in the UK. Both the procurement process and final close of contract were significantly delayed, resulting in the expected first delivery date moving from 2012 to 2016. The trains are known as Class 700s and the £1.6 billion contract to manufacture and provide service depots for the trains was finalised in mid 2013. A fleet of 115 8- and 12-car trains is expected to enter service between 2016 and 2018. A new-build rolling stock depot was completed at Three Bridges in 2015, and Hornsey depot was extended northwards and had several new buildings added in 2016.
  Because of the delay in procuring the Class 700 trains, 29 Class 387 trains were ordered for the Thameslink route, releasing the Class 319 trains to newly electrified routes. Delivery was completed in 2014 and the trains entered service later that year. The order includes provision for an extra 140 vehicles. It was originally planned that once the Class 700s began entering service, the Class 387s would be transferred to Great Western Railway for use on routes in the Thames Valley. However a change of plans saw GWR order an entirely new fleet of Class 387s, so the Thameslink units were cascaded to the Great Northern route following delivery of the Class 700s.
  In addition to the introduction of the new Class 700 units, GTR also ordered a further 25 new 6-car trains to replace the 40-year-old Class 313 units on the Great Northern Moorgate suburban services. In December 2015, Siemens was selected to provide these as a follow-on to the Class 700 order. They were designated as the Class 717 in June 2016, and are currently being introduced since September 2018.
caption: Interior of a Great Northern Class 387 having been moved over from the Southern brand with its interior.
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