British Rail Class 71

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British Rail Class 71
E5001 at Doncaster Works.
Type and origin Power type Electric Builder British Railways’ Doncaster Works Order number Doncaster EO3 (3), EO4 (10), EO15 (11) Build date 1958–1960 Total produced 24
Specifications Configuration: ​  • AAR B-B  • UIC Bo′Bo′  • Commonwealth Bo-Bo Gauge 4 ft 8+1⁄2 in (1,435 mm) Wheel diameter 4 ft 0 in (1,219 mm) Loco weight 77.00 long tons (78.24 t; 86.24 short tons) Electric system/s 660–750 V DC Third rail (mainline) 650 V DC Overhead Line (sidings) Current pickup(s) Contact shoe (mainline) Pantograph (sidings) Traction motors English Electric 532 or 532A, 4 off Train heating Electric Train Heating Loco brake Dual Vacuum and Air
Performance figures Maximum speed 90 mph (145 km/h) Power output: ​  • 1 hour 2,552 hp (1,900 kW)  • Continuous 2,300 hp (1,720 kW) Tractive effort 43,800 lbf (195 kN) Brakeforce 68 long tons-force (678 kN)
Career Operators British Railways Numbers E5000–E5023; later E5001–E5024; later 71 001–71 014 Axle load class Route availability 6 Withdrawn 1976–1977 Preserved E5001 Current owner National Railway Museum Disposition 10 rebuilt to class 74, 13 scrapped, 1 preserved

The British Rail Class 71 was an electric locomotive used on the Southern Region of British Railways. Unlike Southern Region electro-diesel locomotives (such as classes 73 and 74) they could not operate away from the electrified (750 V DC) system.