British Rail Class 20
The British Rail Class 20, originally known as an English Electric Type 1, was a class of diesel electric locomotive. 228 locomotives in the class were built by English Electric between 1957 and 1968. The large number was partly to do with the failure of other early designs in the same power range, and reliable locomotives being needed.
| English Electric Type 1 British Rail Class 20 | |
| |
| Hunslet-Barclay 20903 on a weedkilling train at Doncaster, April 1994 | |
| Power type | Diesel-electric |
|---|---|
| Builder | English Electric at Vulcan Foundry and Robert Stephenson and Hawthorns |
| Build date | 1957–1962, 1966–1968 |
| 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 | 3 ft 7 in (1.092 m) |
| Minimum curve | 3.5 chains (70 m) |
| Wheelbase | 32 ft 6 in (9.91 m) |
| Length | Lua error in Module:Convert at line 452: attempt to index field 'titles' (a nil value). |
| Width | 8 ft 9 in (2.67 m) |
| Height | 12 ft 8 in (3.86 m) |
| Locomotive weight | Lua error in Module:Convert at line 1850: attempt to index local 'en_value' (a nil value). |
| Fuel capacity | 380 imp gal (1,700 l; 460 US gal) |
| Prime mover | English Electric 8 SVT Mk.II |
| Traction motors | D8000–D8049: EE 526/5D Remainder: EE 526/8D |
| Transmission | DC generator, DC traction motors |
| Multiple working | ★ Blue Star |
| Top speed | 75 mph (121 km/h) |
| Power output | Engine: 1,000 hp (746 kW) |
| Tractive effort | Maximum: 42,000 lbf (186.8 kN) |
| Train heating | None |
| Locomotive brakeforce | Lua error in Module:Convert at line 1850: attempt to index local 'en_value' (a nil value). |
| Train brakes | Vacuum |
| Career | British Railways |
| Number | D8000–D8199, D8300–D8327; later 20001–20228 |
| Axle load class | Route availability 5 |
The locomotives were originally numbered D8000–D8199 and D8300–D8327. They are known by railway enthusiasts as "Choppers",[1][2] a name taken from the distinctive beat the engine produces under load which resembles the sound of a helicopter.
British Rail Class 20 Media
Two Class 20s, coupled nose to nose, hauling a freight train in 1986
Two Class 20s working a passenger train
20 168 shunting JPA cement wagons at Earles Sidings in Derbyshire on 31 May 2017.
Harry Needle Railroad Company 20 311 at Derby in 2014
Harry Needle Railroad Company 20 901 in GB Railfreight livery in 2014
Corus 81 (ex-BR 20 056) at Barrow Hill Engine Shed, 9 July 2006
Prototype Class 20 D8001 stands at Wirksworth waiting for departure on a goods working.
© Copyright WhistlingTractor 2011
Diesel Power at Oakworth Station - geograph.org.uk - 253039
.JPG)
References
- ↑ Oakley, Michael (1981). BR Class 20 diesels. Truro: Bradford Barton / D&EG. ISBN 0-85153-419-8.
- ↑ "'At least 20 20s' for Barrow Hill diesel jubilee". The Railway Magazine: 9. July 2007.
