British Rail Class D1/1
British Rail Class D1/1 (formerly DY1) was a class of locomotive commissioned by British Rail in England. It was a diesel locomotive in the pre-TOPS period built by the Hunslet Engine Company with a 153 horsepower (114 kW) Gardner 6L3 engine.
| British Rail Class D1/1 | |
| Power type | Diesel-mechanical |
|---|---|
| Builder | Hunslet Engine Company |
| Serial number | 4625–4627 |
| Build date | 1954–1955 |
| Configuration | 0-4-0dm |
| UIC classification | B |
| Gauge | Lua error in package.lua at line 80: module 'Module:Track gauge/data' not found. |
| Wheel diameter | 3 ft 4 in (1.016 m) |
| Locomotive weight | 22.45 long tons (22.81 t) |
| Prime mover | Gardner 6L3 |
| Transmission | Mechanical, Hunslet four-speed gearbox |
| Multiple working | Not fitted |
| Top speed | 14 mph (23 km/h) |
| Power output | Engine: 153 bhp (114 kW) |
| Tractive effort | 10,800 lbf (48.0 kN) |
| Train heating | None |
| Train brakes | None |
| Career | British Railways |
| Class | DY1; later D1/1; later 1/15. No TOPS class. |
| Number | 11500–11502; D2950–D2952 from 1957 to 1958 |
| Axle load class | Route availability 1 |
| Disposition | One sold to industry, two scrapped |
