| British Rail Class 122 | |
|---|---|
 Class 122, No. 55006, at Bewdley on the Severn Valley Railway on 15 October 2004, whilst taking part in the Railcar 50 event. This unit is painted in original BR Green livery, and is preserved on the Ecclesbourne Valley Railway. | |
| In service | 1958- 1995 |
| Manufacturer | Gloucester RC&W |
| Family name | Bubble Car |
| Number built | 21 |
| Formation | 1 car per trainset |
| Operator(s) | British Rail |
| Specifications | |
| Car length | 64 ft 6 in |
| Width | 9 ft 3 in |
| Height | 12 ft 8 1/8 in |
| Maximum speed | 70 mph (112 km/h) |
| Weight | 36 tons 10 cwt |
The British Rail Class 122 diesel multiple units were built by Gloucester RC&W in 1958. Twenty single-car driving motor vehicles, called "Bubble Cars", were built, numbered 55000-55019. These were supplemented by ten trailer vehicles, numbered 56290-299 (later renumbered 54290-299).
