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British Rail Classes 485 and 486

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British Rail Class 485
British Rail Class 486
Class 485 no. 485045 at Shanklin railway station, current terminus of the Island Line.
In service1923 on London Underground
1967 - 1992 on Island Line
ManufacturerMetro Cammell, Union Construction Company, Cammell Laird
Family nameTube stock
Formation4 cars per trainset (4Vec) and 3 cars per trainset (3Tis)
Capacity132 seats (4Vec) and 106 seats (3Tis)
Operator(s)Network SouthEast
Maximum speed45 mph 72 km/h
Weight94 t (4Vec) and 65 t (3Tis)
Electric system(s)630 V DC 3rd rail
Track gauge1,435 mm (4 ft 8 12 in) standard gauge

The British Rail Class 485 (or 4Vec) and British Rail Class 486 (or 3Tis) electrical multiple units were originally built for the London Electric Railway from 1923-31 as their 'Standard' tube stock. They were purchased by British Rail in 1967 and transported to the Isle of Wight to work 'mainline' services on the newly electrified Ryde to Shanklin line. At the time the units had already worked for over forty years on the London Underground, but their introduction allowed the final steam locomotives on the line to be withdrawn.