The British Rail Class 222 Meridian is a diesel-electric multiple-unit high-speed passenger train capable of . Twenty-seven sets were built by Bombardier Transportation in Bruges, Belgium. The Class 222 is part of the Bombardier Voyager family, so it is very similar to the Class 220 Voyager and Class 221 Super Voyager trains used by CrossCountry and Avanti West Coast. In comparison, the Class 222s have a different interior and also have more components fitted under the floors to free up space within the body. Built for Midland Mainline and Hull Trains, today all are operated by East Midlands Railway and branded Meridians. Details All are equipped with a Cummins QSK19 diesel engine of at 1,800rpm. This powers a generator, which supplies current to motors driving two axles per coach. Approximately can be travelled between each refuelling. Class 222 have rheostatic braking using the motors in reverse to generate electricity which is dissipated as heat through resistors situated on the roof of each coach; this saves on brake pad wear. In common with the Class 220s, B5000 lightweight bogies are used - these are easily recognisable since the entire outer surface of the wheel is visible, with inboard axle bearings. The Class 222 are fitted with Dellner couplers, as on Class 220 Voyager and Class 221 Super Voyager trains, though these units cannot work together in service because the Class 222 electrical connections are incompatible with the Class 220 and Class 221 trains. All Class 222 units are maintained at the dedicated Derby Etches Park depot, just south of Derby railway station. Formation Class 222 units are currently running in the following formations: East Midlands Railway: seven cars with 236 standard seats and 106 first-class seats. Coach A - Standard class with driving cab and reservable space for two bikes Coach B - Standard class Coach C - Standard class Coach D - Standard class with buffet counter Coach F - First class Coach G - First class Coach H - First class, kitchen and driving cab East Midlands Railway: five cars with 192 standard seats and 50 first-class seats Coach A - Standard class with driving cab and reservable space for two bikes Coach B - Standard class Coach C - Standard class with Buffet counter Coach D - Standard class / first class composite Coach G - First class, kitchen and driving cab The five-car units can be coupled