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British Rail class 71
originally type HA, E5000
Great Britain | 1958 | 24 produced
E5001 in December 1991 at Ashford works' 150th anniversary celebrations
E5001 in December 1991 at Ashford works' 150th anniversary celebrations
Barry Lewis

The class 71, initially known as the type HA, was a locomotive for third rail electrified lines. Depending on the region, they were operated with 650 or 750 volts. For station areas with many points, in which there was an overhead line instead of the third rail, they had a pantograph on the center roof. To overcome short non-electrified gaps, they had a flywheel to maintain speed. Nevertheless, the first ten locomotives were converted to diesel locomotives as early as the 1960s because they had competition from the class 73 electro-diesel locomotives. The latter ultimately led to all remaining locomotives being withdrawn at the same time in 1977.

General
Built1958-1960
ManufacturerDoncaster
Axle configB-B 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Service weight172,400 lbs
Adhesive weight172,400 lbs
Axle load43,211 lbs
Power
Power sourceelectric - DC
Electric system650 V, 750 V
Hourly power2,552 hp (1,903 kW)
Continuous power2,300 hp (1,715 kW)
Top speed90 mph
Starting effort43,800 lbf
Power Plant
Boiler
Calculated Values
electric locomotive
third rail
freight
passenger
last changed: 04/2023
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