The British Rail Class 99 is a planned class of dual-mode electro-diesel

Co-Co locomotives Co-Co is the wheel arrangement for diesel or electric locomotives with two six-wheeled bogies with all axles powered, with a separate traction motor per axle. The equivalent UIC classification (Europe) for this arrangement is Co′Co′, or C-C ...

that will haul freight trains on both electrified and non-electrified lines. It will be based on the Stadler Euro Dual platform.

Specification

The locomotive will have a maximum tractive effort of "up to" 500kN, and a power output of at the wheel in electric mode. These figures exceeds those of the diesel-powered

BR Class 66 The Class 66 is a type of six-axle diesel-electric freight locomotive developed in part from the , for use on the railways of the UK. Since its introduction the class has been successful and has been sold to British and other European railway co ...

. Peter Dearman, writing in ''Rail Engineer'', reports that the Class 99 may only be able to deliver at the rail in diesel mode.

History

In April 2022

Beacon Rail Beacon Rail is a rolling stock company (ROSCO) based in the United Kingdom. Its primary business is the leasing of locomotives and rolling stock to various train operating companies (TOCs). The company originated within Allco Finance Group's Eur ...

and

GB Railfreight GB Railfreight (GBRf) is a rail freight company in the United Kingdom. As of 2022, it is owned by the global investment company Infracapital. GB Railfreight was established in April 1999 as the rail freight operating subsidiary of the train o ...

signed an agreement for the supply of 30 locomotives to replace Class 66s.GBRf orders 30 Stadler Class 99 bi-mode locos
''

Modern Railways ''Modern Railways'' is a British monthly magazine covering the rail transport industry which was published by Ian Allan until March 2012, and Key Publishing since then. It has been published since 1962. The magazine was originally based in She ...

'' 29 April 2022 Introduction to service is expected in 2025. They will be maintained by Stadler at a new facility in

Leicester Leicester ( ) is a city status in the United Kingdom, city, Unitary authorities of England, unitary authority and the county town of Leicestershire in the East Midlands of England. It is the largest settlement in the East Midlands. The city l ...

References

99 Co-Co locomotives Electro-diesel locomotives of Great Britain Stadler Rail rolling stock Standard gauge locomotives of Great Britain 25 kV AC locomotives {{Loco-stub