British Rail Class 317

British Rail Class 317
Greater Anglia Class 317/1 at Cambridge North in 2017
Greater Anglia Class 317/5 standard-class saloon in 2021
In service28 March 1983 – July 2022[1][2]
ManufacturerBritish Rail Engineering Limited
Built at
Family nameBR Second Generation (Mark 3)
Replaced
Constructed
  • 1981–1982
  • 1985–1987
Refurbishment
Number built72
Number preserved2 vehicles
Number scrapped65
Successor
Formation
  • 4 cars per unit;
  • 317/6 units: DTSO-MSO-TSO-DTCO[3]
  • All others: DTSO-MSO-TCO-DTSO
Diagram
  • 317/1 DTSO vehicles: EE216, EE232, & EE235[note 1]
  • 317/1 MSO vehicles: EC202
  • 317/1 TCO vehicles: EH307
  • 317/2 DTSO vehicles: EE224 & EE225
  • 317/2 MSO vehicles: EC205
  • 317/2 TCO vehicles: EH308
Fleet numbers
  • As built:
  • 317/1: 317301–317348
  • 317/2: 317349–317372
  • Following renumberings:
  • 317/1: 317337–317348
  • 317/5: 317501–317515
  • 317/6: 317649–317672
  • 317/7: 317708–317710, 317714, 317719, 317722–317723, 317729, 317732
  • 317/8: 317881–317892
CapacityAs built: 292 seats
(22 first-class, 270 standard)
Operator(s)
Specifications
Car body constructionSteel
Car length
  • DT vehs.: 19.830 m (65 ft 0.7 in)
  • Others: 19.920 m (65 ft 4.3 in)
Width2.816 m (9 ft 2.9 in)
Height3.774 m (12 ft 4.6 in)
Floor height1.144 m (3 ft 9.0 in)
DoorsDouble-leaf pocket sliding, each 1.010 m (3 ft 3.8 in) wide (2 per side per car)
WheelbaseOver bogie centres:
14.170 m (46 ft 5.9 in)
Maximum speed100 mph (160 km/h)
Weight
  • DTSO vehs.: 29.5 tonnes (29.0 long tons; 32.5 short tons)
  • MSO vehs.: 49.0 tonnes (48.2 long tons; 54.0 short tons)
  • TCO vehs.: 28.3 tonnes (27.9 long tons; 31.2 short tons)
Traction motors4 × GEC G315BZ
(248 kW (332 hp) each)
Power output990 kW (1,328 hp)
Electric system(s)25 kV 50 Hz AC overhead
Current collection methodPantograph
UIC classification2′2′+Bo′Bo′+2′2′+2′2′
Bogies
  • Powered: BREL BP20
  • Unpowered: BREL BT13
Minimum turning radius70.4 m (231 ft 0 in)
Braking system(s)Electro-pneumatic (disc)
(Westinghouse)
Safety system(s)
Coupling systemTightlock
Multiple workingWithin class
Track gauge1,435 mm (4 ft 8 1⁄2 in) standard gauge
Notes
Specifications as at November 1988,[4] except where otherwise noted.
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 Greater 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.

Notes

[change | change source]
  1. ↑ Diagram EE232 describes a 71-seat variant used for Great Northern routes from 1986 onwards, while EE235 describes a 70-seat variant with a lockable area of the saloon adjacent to the driver's cab (for luggage, etc) used for services on the West Coast Main Line from 1986 onwards.[4]

References

[change | change source]
  1. ↑ Butlin, Ashley (2001). British Multiple Units: Volume 3 Classes 302-390. Pulborough: Coorlea Publishing. p. 32. ISBN 0-948069-19-8.
  2. ↑ Russell, David (September 2022). "Class 317s stood down by Greater Anglia". Rail Express. No. 316. p. 9.
  3. ↑ "Class 317 - Angel Trains". angeltrains.co.uk. Archived from the original on 4 September 2021. Retrieved 29 December 2021.
  4. ↑ 4.0 4.1 "Vehicle Diagram Book No. 210 for Electrical Multiple Units (including A.P.T.)" (PDF). Barrowmore MRG. BRB Residuary Ltd. EC202, EC205, EE216, EE224–EE225, EE232, EE235, EH307–EH308 (in work pp. 74–75, 80–81, 148–149, 162–165, 174–175, 180–181, 376–379). Archived from the original (PDF) on 21 January 2015. Retrieved 21 January 2015.