Title: British Rail Class 221 - Wikipedia
Headings: British Rail Class 221
British Rail Class 221
Contents
Details
Formation and passenger facilities
Operations
CrossCountry
Avanti West Coast
Technical problems and incidents
Voyager names
Future
Fleet details
See also
References
Further reading
External links

Content: Currently these trains are divided between two operators, Avanti West Coast (20 sets) and CrossCountry (24 sets). The sets operated by CrossCountry had their tilt function disabled in 2008 to improve reliability and reduce maintenance costs. Contents
1 Details
2 Formation and passenger facilities
3 Operations
3.1 CrossCountry
3.2 Avanti West Coast
4 Technical problems and incidents
5 Voyager names
6 Future
7 Fleet details
8 See also
9 References
10 Further reading
11 External links
Details
Classes 220 (left) and 221 (right) showing the differing bogie designs
The Class 221s were produced as 5- or 4-coach sets. Each coach is equipped with a Cummins QSK19 diesel engine producing 560 kW (750 hp) at 1,800 rpm, driving an electrical generator which powers two motors, each driving one (inner) axle per bogie via a cardan shaft and final drive. 1,200 miles (1,900 km) can be travelled between refuellings. The coach bodies, the engines and most of the equipment of the Class 221s are the same as the Class 220s, but the bogies are very different: the Class 220 Voyager B5000 bogies have inside-frames which expose the whole of the wheel faces, while the Class 221 SuperVoyager Y36 bogies have a more traditional outside-framed bogie. Unlike the Class 220s, the Class 221s were built with a hydraulic-actuated tilting system to run at high speed around bends, though this has now been disabled from the 23 sets operated by CrossCountry. Each coach weighs between 55 and 57 tonnes, with a total train weight of 281.9 tonnes for a 5-car set (227 tonnes for a 4-car set). The trains have air-operated (pneumatic) and rheostatic brakes, with an emergency stopping distance of 350m at 60 mph (97 km/h).