Class 421 - 4 Cig.

DTCsoL (A)-MBSO-TSO-DTCsoL(B).
Built 1964 to 1970 York Works (Phase 1) and 1970 to 1972 at York Works (Phase 2).
1963 type Electrical Equipment.
Two Mark 6 motor bogies on (MBSO) and B5 (Southern Region) on trailer cars.
Gangwayed throughout.
4 x EE507 traction motors of 185 kW.
Dimensions: 19.75 x 2.82m.
Express stock - 90 mph Maximum Speed.

All are facelifted with new trim and fluorescent lighting in the saloons.

Class 421/3 - 4 Cig (Phase 1)

Allocated to Brighton (BI) depot, some in store at Eastleigh depot. Numbers 1701-14/17/19-27/31/33-48/50-53/99. They have Mark 4 motor bogies instead of Mark 6 on the MBSOs. Fitted with electric parking brake.

Class 421/4 - 4 Cig (Phase 2)

Details as above, numbers are 1801-13/31-35/37/39-48/50-51/53-74/76-91. Allocated to Brighton (BI), Ramsgate (RE) and Fratton (FR) depots.

Class 421/5 - 'Greyhound' 4 Cig (Phase 2)

All allocated to Fratton (FR) Depot, Portsmouth. Numbers are 1301 to 1322. They work the Portsmouth to London Waterloo services with the 4-Bep Class 412 units. These Greyhound units are fitting with another set of field weakening to improve the maximum speed. This term comes from the Steam era - it was formerly applied to the London and South Western Railway's T9 4-4-0 express steam locomotives.

Class 421/9 - 4 cig (Phase 1)

Fitted with electric parking brake and ex-class 432 Mark 6 motor bogies. Numbers are 1901 to 1908, all allocated to Brighton (BI) depot and working on Connex South Central services.

Class 421 Photographs.

421 1846 speeds through Fratton (Portsmouth) on the 26th June 1993.

421 1878 stands at Portsmouth and Southsea on the 11th April 1993 with a London Waterloo Service.

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