British Rail Class 317

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British Rail Class 317
NXEA 317506 Liverpool Street AB1.JPG
In service1981 - Current
ManufacturerBREL York
Constructed1981 - 1986
Refurbishment1999 - 2000
Railcare Wolverton
Number built72 trainsets
Formation4 cars per trainset
Operator(s)First Capital Connect
National Express East Anglia (including Stansted Express)
Specifications
Car length19.83 m
Width3.70 m
Height2.82 m
Maximum speed100 mph (160 km/h)
Weight137.3 t (317/1, 317/2, 317/7)
138.18 t (317/6 only)
Power output746 kW
Electric system(s)25 kV AC Overhead
Track gauge1,435 mm
Class 317/1, no. 317305 at Cambridge on 23rd May 2003. This unit was one of several loaned by WAGN to LTS Rail from 1996-1999, which involved the red stripe of the NSE livery being repainted green. This unit is now numbered 317505 and operated by National Express East Anglia.

The British Rail Class 317 electric multiple units were built by BREL at York Works in two batches, from 1981-82 and 1985-87. They were the first of several classes of British Rail EMU to be based on the all-steel Mark 3 bodyshell, departing from the "PEP"-aluminium design which had spawned the earlier Class 313 to Class 315. The Mark 3 bodyshell was also the basis of Class 318, Class 455, and the diesel "sprinters" pioneered by the Class 150.