British Rail Class 84

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British Railways AL4
British Rail Class 84
84001 at Crewe Works.JPG
Preserved locomotive 84001 on display at Crewe Works open day on 11 September 2005.
Type and origin
Power typeElectric
BuilderNorth British Locomotive Company
Build date1960–1961
Total produced10
Specifications
Configuration:
 • WhyteBo-Bo
 • UICBo'Bo'
Gauge4 ft 8 12 in (1,435 mm) standard gauge
Wheel diameter4 ft 0 in (1.219 m)
Length57 ft 6 in (17.53 m)
Loco weight76.60 long tons (77.83 t)
Electric system/s25 kV AC
Traction motors750 hp (560 kW) GEC WT501, 4 off
Train heatingElectric Train Heating
Train brakesVacuum; Dual from 1972
Performance figures
Top speed100 mph (160 km/h)
Power output3,100 hp (2,300 kW)
Tractive effort50,000 lbf (220 kN)
Brakeforce65.5 long tons-force (653 kN)
Career
Railroad(s)British Rail
NumberE3036–E3045; later 84001–84010
Axle load classRoute availability 6
Retired1979–1980
DispositionOne preserved, remainder scrapped


The British Rail Class 84 was a 25 kV AC electric locomotive that operated on the West Coast Main Line of the London Midland Region.