| British Rail Class 201 |
| In service |
1957–1986 |
| Manufacturer |
Eastleigh and Ashford Works |
| Number built |
unknown |
| Formation |
Unknown |
| Operator |
British Rail |
| Specifications |
| Maximum speed |
75 mph (121 km/h) |
| Weight |
55 long tons (56 t) |
| Engine(s) |
English Electric 4-cylinder type 4SRKT Mark II |
| Power output |
500 bhp (370 kW) at 850 rpm. Total 1,000 bhp per set. |
The British Rail Class 201 (or 6S) six-car diesel-electric multiple units (DEMUs) were built in 1957–1958 at Eastleigh and Ashford. They were built for use on the London-Hastings line. Several tunnels along the route had restricted clearance, meaning that these units were built with a narrow body profile.
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First generation units
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| Diesel-electric units: |
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