British Rail Class 317
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.
| British Rail Class 317 | |
|---|---|
 Class 317 at London Liverpool Street | |
| In service | 1981 - Current |
| Manufacturer | BREL York |
| Constructed | 1981 - 1986 |
| Refurbishment | 1999 - 2000 Railcare Wolverton |
| Number built | 72 trainsets |
| Number scrapped | 13 sets. |
| Formation | 4 cars per trainset |
| Operator(s) | Greater Anglia |
| Specifications | |
| Car length | 19.83 m |
| Width | 3.70 m |
| Height | 2.82 m |
| Maximum speed | 100 mph (160 km/h) |
| Weight | 137.3 t (317/1, 317/2, 317/7) 138.18 t (317/6 only) |
| Power output | 746 kW |
| Electric system(s) | 25 kV AC Overhead |
| Track gauge | 1,435 mm |
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