| British Rail Class 100 | |
|---|---|
 A Class 100 at Reddish North in 1976 | |
| In service | 1957–1988 |
| Manufacturer | Gloucester Railway Carriage and Wagon Company |
| Family name | First generation |
| Replaced | Steam locomotives and carriages |
| Constructed | 1957–1958 |
| Number built | 40 sets (80 cars) |
| Number preserved | 3 cars |
| Formation | 2 cars sets: DMBS-DTCL |
| Capacity | DMBS: 52 second class seats, DMCL: 12 first and 54 second class seats |
| Operators | British Rail |
| Specifications | |
| Car length | 57 ft 6 in (17.53 m) |
| Width | 9 ft 3 in (2.82 m) |
| Height | 12 ft 8+1⁄2 in (3.87 m) |
| Maximum speed | 70 mph (113 km/h) |
| Weight | DMBS: 30 long tons 5 cwt (67,700 lb or 30,700 kg), DMCL: 24 tons 15 cwt (55,400 lb or 25,100 kg) |
| Prime mover(s) | Two BUT (AEC) 6-cylinder diesel engines |
| Power output | 150 bhp (112 kW) per engine |
| Transmission | Mechanical: 4-speed epicyclic gearbox |
| Braking system(s) | Vacuum |
| Coupling system | Screw-link couplings, British Standard gangways |
| Multiple working | ■ Blue Square |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) |
The British Rail Class 100 diesel multiple units were built by Gloucester Railway Carriage and Wagon Company Limited from 1956 to 1958, designed and built in collaboration with the Transport Sales Dept. of T.I. (Group Services) Ltd.