British Rail Class 315
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The British Rail Class 315 BEP is a fleet of alternating current electric multiple unit trains, built by British Rail Engineering Limited at Holgate Road Carriage Works in York between 1980 and 1981; they replaced the Class 306 units. Wikipedia
Built at: Holgate Road Works, York
Capacity: As built: 318 seats; Post-2012: 309 seats, plus 7 tip-up
Car body construction: Steel underframe with aluminium body and roof
Car length: DM vehs.: 19.800 m (64 ft 11.5 in); Trailers: 19.920 m (65 ft 4.3 in)
Diagram: DMSO vehicles: EA207; PTSO vehicles: EH217; TSO vehicles: EH216
Doors: Double-leaf pocket sliding, each 1.288 m (4 ft 2.7 in) wide (2 per side per car)
Electric system(s): 25 kV 50 Hz AC overhead