Project Profile: EMR Class 810 ‘Aurora’ Bi-Modal Fleet

The Class 810 ‘Aurora’ project is a fleet-wide replacement initiative for East Midlands Railway’s (EMR) intercity services, introducing 33 five-car bi-modal units manufactured by Hitachi Rail. This profile details the technical specifications, strategic importance, and operational parameters of this critical UK rail modernization program. The fleet enhances operational flexibility on the Midland Main Line by seamlessly transitioning between 25 kV AC overhead electric and onboard diesel power.

Technical Specifications

The Class 810 Aurora is a bi-modal Multiple Unit (BMU) based on Hitachi’s AT300 platform, which utilizes Japanese bullet train technology. Each five-car unit is equipped for dual-power operation, drawing from 25 kV AC overhead line equipment (OLE) where available and switching to underfloor diesel generator sets on non-electrified sections. This configuration provides EMR with maximum operational flexibility across its network, mitigating infrastructure gaps following the Midland Main Line electrification upgrade. The trainsets have a maximum acceleration of 0.75 m/s² and are designed for a top speed of 225 km/h (140 mph), although service operation is capped at 201 km/h (125 mph).

Each unit provides a capacity of 315 seats, comprising 45 first-class and 270 standard-class. The interior, developed by DGDESIGN, features ergonomically enhanced FISA seating with wool-rich moquette and leather finishes. Onboard systems include advanced passenger information screens, universal access toilets, ample luggage storage, and at-seat power via standard electrical sockets and USB points. Safety and control systems integrated by Mors Smitt include the Train Protection and Warning System (TPWS), Automatic Power Control (APC) for seamless power transition, and an advanced Anti-Wheel-Slip (AWS) system.

Key Takeaways

• Operational Resilience: The bi-modal power system provides a strategic advantage, allowing services to run efficiently on both electrified and non-electrified portions of the Midland Main Line without requiring locomotive changes.
• Passenger Experience Enhancement: The project sets a new standard for intercity travel in the region, with significant upgrades in comfort, connectivity, and accessibility designed to attract passengers from road to rail.
• Sustainable Modernization Model: By leveraging electric power, the fleet eliminates localized emissions on key sections of the route. In diesel mode, particulate matter emissions are reduced by up to 90% compared to the legacy High-Speed Trains they replaced.

Frequently Asked Questions (FAQ)

When did the Class 810 Aurora trains enter service?

The Class 810 Aurora trains began entering scheduled passenger service with East Midlands Railway in early 2025. This marked the start of a phased introduction to replace the operator’s entire legacy intercity fleet on the Midland Main Line.

Who built the Class 810 Aurora trains?

The Class 810 Aurora trains were manufactured by Hitachi Rail at their facility in Newton Aycliffe, County Durham, UK. The project involved a significant £110 million investment in the factory and a supply chain comprising numerous UK and international engineering firms.