Chiltern Explorers serving the West Midlands
posted on 17th Feb 2026 08:32
On 27January 2026, Chiltern Railways introduced the first of its 13 "new" Mk5 trains (initially TPE) into service for customers travelling to and from the West Midlands. This major investment is set to deliver 10,000 additional seats each weekday from December 2026.
The trains, now running between London and the West Midlands via Buckinghamshire, Oxfordshire and Warwickshire, have been named "Chiltern Explorers" – a new name for the fleet which was chosen by customers from a shortlist. The operator wanted a name that conveyed movement, excitement and would be easily recognisable, and this was the standout choice from a series of customer focus groups. The new name will be used on-board trains, in announcements, and at stations to make clear what type of train customers are using.
A celebratory event took place on 27 January at Birmingham Moor Street and at stations along the route to London Marylebone. Customers were greeted at stations with goody bags and music performances to commemorate the train’s introduction into service. The series of events brought together regional leaders, businesses, and customers to experience how the trains will improve rail services to and from the West Midlands, offering services every 30 minutes between the West Midlands and London every weekday.
The Explorer trains feature plug sockets and USB ports at every seat, digital customer information screens, air conditioning, improved luggage, bike storage, and First-Class travel. Crucially, the trains deliver significant improvements for customers with accessibility needs, with dedicated areas including fully accessible toilets and better boarding and seating arrangements, delivering comfortable travel for all customers travelling on them.
The Explorer trains are replacing four train sets formed of British Rail-built coaches, which will leave Chiltern by the end of March. The train sets, hauled by locomotives, have served customers for nearly 50 years.
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