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| British Rail Class 950 | |
|---|---|
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| Manufacturer | British Rail Engineering Limited |
| Built at | Holgate Road Works,York |
| Family name | Sprinter |
| Constructed | 1987 |
| Number built | 1 |
| Number in service | 1 |
| Formation | 2 cars:DM-DM |
| Fleet numbers |
|
| Operators | Network Rail |
| Depots | Railway Technical Centre (Derby)[1] |
| Specifications | |
| Car body construction | Steel[2] |
| Car length | 19.930 m (65 ft 4.6 in)[2] |
| Width | 2.816 m (9 ft 2.9 in)[2] |
| Height | 3.774 m (12 ft 4.6 in) |
| Maximum speed | 75 mph (121 km/h) |
| Prime mover(s) | 2 ×Cummins NT855-R5(one per vehicle)[2] |
| Engine type | Inline-64-stroketurbo-diesel[3] |
| Displacement | 14 L (855 cu in) per engine[3] |
| Power output | 213 kW (286 hp) per engine |
| Transmission | Voith T 211 r (hydrokinetic) |
| UIC classification | 2′B′+B′2′ |
| Braking system(s) | Electro-pneumatic (tread) |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in)standard gauge |
TheBritish Rail Class 950 is adiesel multiple unit that was purpose-built byBritish Rail Engineering Limited'sHolgate Road carriage works for theBritish Rail Research Division for use as a track assessment unit. It is currently operated byNetwork Rail.
It was built in 1987 using the same bodyshell as theClass 150/1Sprinters.[4] It was originally classified as a Class 180,[1] but was reclassified into the departmental series[when?]. As part of theprivatisation of British Rail, it passed toRailtrack in 1994 and thenNetwork Rail in 2002. The unit is formed of two driving motor vehicles, numbered 999600 and 999601.
The unit is currently painted in a plain overall yellow livery with Network Rail branding. It mostly works on branch lines, where the track quality is not good enough for larger and heavier track assessment stock. It is able to operate over most railway lines aroundGreat Britain. The unit is based at theRailway Technical Centre inDerby.
In December 2024, Network Rail announced that the unit would be withdrawn and disposed of, to be replaced by additional (modified) Class 153s.[5]
| Class | Operator | Qty. | Year built | Cars per unit | Unit nos. | Notes |
|---|---|---|---|---|---|---|
| 950 | Network Rail | 1 | 1987 | 2 | 950001 | Network Rail Test Train |
Media related toBritish Rail Class 950 at Wikimedia Commons