British Rail Class 317
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The British Rail Class 317 is an electric multiple unit passenger train constructed by British Rail Engineering Limited in two batches: 48 sets were produced in 1981–82 and 24 sets in 1985–87. Wikipedia
Braking system(s): Air (Westinghouse)
Car length: DT cars: 20.13 m (66 ft 1 in); Others: 20.18 m (66 ft 2 in)
Coupling system: Tightlock
Current collector(s): Pantograph
Electric system(s): 25 kV 50 Hz AC Overhead
Formation: 4 cars per unit; 317/6 units: DTSO-MSO-TSO-DTCO; All others: DTSO-MSO-TCO-DTSO
In service: 28 March 1983–July 2022