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British Rail Class 421 facts for kids

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British Rail Class 421
1498 at Lymington Pier.JPG
Class 421/7 no. 1498 "Farringford" at Lymington Pier on 26 May 2005. This unit has been restored to 1960s-era British Railways green livery for use on the Lymington Branch Line.
In service 1964 - Current
Manufacturer BREL York
Number built Unknown
Formation driving trailer + trailer + power car + driving trailer
Operator(s) British Rail, South West Trains
Car length 265ft 8 1/2in
Width ft 9 in (2.81m)
Height 12ft 9 1/4in (3.89m)
Maximum speed 90mph (145 km/h)
Weight 150 Tons
Power output 4 x 250 hp traction motors
total 1,000 hp (746 kW)
Electric system(s) 750V dc third rail
Track gauge standard gauge
1717 at Clapham Junction
Class 421/3, no. 1717, at Clapham Junction on 20 August 2004. This was one of the final few 'Phase 1' 4Cig units in service with Southern.
1313 at London Waterloo
Class 421/5, no. 1313, at London Waterloo on 19 July 2003. This is one of 22 "Greyhound" units that were operated by South West Trains. This unit has since been withdrawn and scrapped.

The British Rail Class 421 (or 4Cig) electrical multiple units were built at BR York Works from 1964-1972. Units were built in two batches, and were initially introduced on services on the Brighton Main Line. Later units were introduced on services to Portsmouth. These units replaced older Southern Railway-designed units, such as the 5Bel "Brighton Belle" units, and 4Cor units. These trains were known commonly as "slam-doors".

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