British Rail Class 86
86608 at the Crewe Station Avoiding Lines. Freightliner are the largest operator of class 86s
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| Type and origin | |
|---|---|
| Power type | Electric |
| Builder |
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| Order number |
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| Build date | 1965–1966 |
| Total produced | 100 |
| Specifications | |
|---|---|
| Configuration | Bo-Bo |
| AAR wheel arr. | B-B |
| UIC class | Bo'Bo' |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) standard gauge |
| Bogies | Alsthom suspension |
| Wheel diameter | 3 ft 9 in (1.143 m) |
| Minimum curve | 6 chains (400 ft; 120 m) |
| Wheelbase | 43 ft 6 in (13.26 m) |
| • Bogie | 10 ft 9 in (3.28 m) |
| Pivot centres | 32 ft 9 in (9.98 m) |
| Length: |
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| • Over beams | 58 ft 6 in (17.83 m) |
| • Body | 54 ft 8 in (16.66 m) |
| Width | 8 ft 8 1⁄4 in (2.648 m) |
| Height: |
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| • Pantograph | 13 ft 0 9⁄16 in (3.977 m) |
| • Body height | 12 ft 4 1⁄4 in (3.766 m) |
| Axle load | 21 long tons 8 cwt (21.7 t) |
| Loco weight | 81 long tons (82 t; 91 short tons) |
| Electric system(s) | 25 kV AC Catenary |
| Current collection | Stone-Faiveley Pantograph |
| Traction motors | |
| Gear ratio | 22:65 |
| Train heating | Electric Train Heating |
| Train brakes | Westinghousedual vacuum & air |
| Performance figures | |
|---|---|
| Maximum speed | 100–110 mph (161–177 km/h) |
| Power output | 3,600 hp (2,685 kW), 4,040 hp (3,013 kW), or 5,000 hp (3,728 kW) |
| Tractive effort | 60,000 lbf (267 kN) |
| Loco brakeforce | 66.5 long tons-force (663 kN) |
| Career | |
|---|---|
| Operators |
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| Numbers | E3101–E3200 later 86001–86048, 86201–86252 |
| Axle load class | Route availability 6 |
The British Rail Class 86 was the standard electric locomotive built during the 1960s. One hundred of these locomotives were built from 1965 to 1966 by either English Electric at Vulcan Foundry, Newton-le-Willows, or British Rail (BR) at their Doncaster works. The class was built to haul trains on the then newly electrified West Coast Main Line, from London Euston, to Birmingham, Crewe, Manchester Piccadilly, Liverpool and later Preston and Glasgow. They helped to replace steam locomotives, which were finally withdrawn by BR in 1968.
Under the earlier BR classification system, the type was given the designation AL6 (meaning the 6th design of AC Locomotive), and locomotives were numbered E3101-E3200. In 1968, this was changed to Class 86, when BR introduced the TOPS classification system.
The Class was developed as a result of experience with the earlier prototype Classes 81, 82, 83, 84 and 85, which had been produced by different manufacturers in the early days of the WCML electrification, as testbeds for locomotive development.
The AL6 featured design elements pioneered on the earlier classes, such as the general construction of the bodies and bogies, and control systems. However some design features were unique, such as squared-off front ends, as opposed to the raked back noses of the earlier designs. Another difference was the lack of a second pantograph. The cooling fans on the AL6 were also specially designed to produce less noise than the earlier locos.
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Wikipedia