British Rail Class 74
British Rail class 74 was an electro-diesel locomotive that operated on the Southern Region of British Railways, rebuilt from redundant Class 71 locomotives in the late 1960s. An electro-diesel locomotive is one that can operate either from an electrical supply, such as overhead lines or an energized third rail, or from an onboard diesel engine.
| British Rail Class 74 | |
| |
| 74 003 in BR blue with full yellow ends | |
| Power type | Electro-diesel |
|---|---|
| Builder | British Railways’ Doncaster Works; rebuilt BR Crewe Works |
| Build date | 1958–1960; Rebuilt 1967–1968 |
| Total production | 10 (rebuilt) |
| Configuration | Bo-Bo |
| UIC classification | Bo'Bo' |
| Gauge | Lua error in package.lua at line 80: module 'Module:Track gauge/data' not found. |
| Wheel diameter | 4 ft 0 in (1.219 m) |
| Locomotive weight | 77 long tons (78 t) |
| Electric system(s) | 650–750 V Direct Current |
| Current collection method | Third rail |
| Prime mover | Paxman 6YJXL |
| Traction motors | English Electric 532A, 4 off |
| Power output | Electric (continuous): 2,300 hp (1,715 kW) Electric (one-hour): 2,552 hp (1,903 kW) Engine: 650 bhp (485 kW) |
| Tractive effort | Electric: 47,500 lbf (211.3 kN) Diesel: 40,000 lbf (177.9 kN) |
| Train heating | Electric Train Heating |
| Train brakes | Vacuum, Air, Electro-Pneumatic |
| Career | British Railways’ Southern Region |
| Number | E6101–E6110 |
| Axle load class | Route availability 7 |
| Disposition | All scrapped none preserved |
British Rail Class 74 Media
74004 at Waterloo in December 1975.
74002 at waterlooo
