British Rail Class 46
The British Rail Class 46 is a class of diesel locomotive. They were built from 1961–1963 at British Railways' Derby Works and were initially numbered D138-D193. With the arrival of TOPS computer system they were renumbered to Class 46. Fifty-six locomotives were built. The first was withdrawn in 1977 and all of them were withdrawn by 1984.
Derby Type 4 British Rail Class 46 | |
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Class 46 | |
Power type | Diesel-electric |
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Builder | British Railways’ Derby Works |
Build date | 1961–1963 |
Total production | 56 |
Configuration | 1Co-Co1 |
UIC classification | (1Co)'(Co1)' |
Wheel diameter | 3 ft 9 in (1.143 m) |
Minimum curve | 3.5 chains (70 m) |
Wheelbase | 59 ft 8 in (18.19 m) |
Length | 67 ft 11 in (20.70 m) |
Width | Lua error in Module:Convert at line 452: attempt to index field 'titles' (a nil value). |
Height | 12 ft 10 in (3.91 m) |
Locomotive weight | Lua error in Module:Convert at line 1850: attempt to index local 'en_value' (a nil value). |
Fuel capacity | 790 imp gal (3,600 l; 950 US gal) |
Prime mover | Sulzer 12LDA28-B |
Multiple working | ★ Blue Star |
Top speed | 90 mph (145 km/h) |
Power output | Engine: 2,500 bhp (1,864 kW) At rail: 1,962 hp (1,463 kW) |
Tractive effort | Maximum: Lua error in Module:Convert at line 1850: attempt to index local 'en_value' (a nil value). |
Train heating | Steam generator |
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 | D138–D193; later 46001–46056 |
Nicknames | ‘Peak’ |
Axle load class | Route availability 7 |
The Class 46 design was structurally the same as the earlier Class 45 build, and had the same Sulzer engine. It differed in the fitment of a Brush generator and traction motors, in place of the Crompton Parkinson equipment fitted to the Class 45.