 | This article includes a list of general references, but it lacks sufficient corresponding inline citations. (October 2024) |
| British Rail Class 111 | |
|---|---|
 British Rail class 111 passing Skipton in March 1983 | |
| In service | 1957–1989 |
| Manufacturer | Metropolitan Cammell |
| Family name | First generation |
| Replaced | Steam locomotives and carriages |
| Constructed | 1957–1960 |
| Number built | 23 train sets |
| Number preserved | 1 trailer |
| Number scrapped | 22 train sets |
| Formation | 2-car sets: DMBS-DTCL or 3-car sets: DMBS-TSL-DMCL |
| Capacity | DMBS: 52 second DMCL/DTCL: 12 first 53 second TSL 71 second |
| Operators | British Rail |
| Specifications | |
| Car length | 57 ft 0 in (17.37 m) |
| Width | 9 ft 3 in (2.82 m) |
| Height | 12 ft 4 in (3.76 m) |
| Maximum speed | 70 mph (113 km/h) |
| Weight | Power cars: 33 long tons 0 cwt (73,900 lb or 33.5 t) Trailer cars: 25 long tons 0 cwt (56,000 lb or 25.4 t) |
| Prime mover(s) | Two Rolls-Royce C6NFLH |
| Power output | 180 hp (134 kW) per engine, 360 hp (268 kW) per power car |
| Transmission | Mechanical: 4-speed epicyclic gearbox |
| Braking system(s) | Vacuum |
| Coupling system | Screw-link |
| Multiple working | ■ Blue Square |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) |
The Class 111 DMUs were based on Class 101/2s, but with different engines. The only external body difference was on the final batch of cars where a four character headcode box was fitted above the front cab windows, with the destination indicator on top of a reduced height centre window.