British Rail Class 122

Infobox DMU
name = British Rail Class 122


imagesize = 240px
background = #0033cc
caption = 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.
Manufacturer =Gloucester RC&W
Operator = British Rail
Formation = 1 car per trainset
Built =1958
LinesServed =
InService = 1958-
CarLength = 64 ft 6 in
CarWidth = 9 ft 3 in
CarHeight = 12 ft 8 1/8 in
Weight = 36 tons 10 cwt
Capacity =
MaxSpeed = 70 mph (112 km/h)
Gauge =
Traction =
Engine =
SafetySystem= |

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).

Parcels use

Three Scottish Region cars (55013-55015) were converted to carry parcels traffic and were reclassified Class 131, though the vehicles themselves were not renumbered.

Current operations

Upon privatisation of Britain's railways, the Class 122 fleet has been withdrawn from normal service. However several units were operated by EWS and Network Rail (previously Railtrack) in departmental service, reclassified as Class 960. These are listed below:

Preservation

"Bubble Cars" have proved popular for preservation on heritage railways.