Class 405 4-SUB Profile and Models
4707 at Whitton in May 1975. ©Hugh Llewelyn
The Southern Railway (SR) and the British Railways (Southern Region) (BR(S)) used the designation Sub to cover a wide variety of electric multiple-unit passenger trains that were used on inner-suburban workings in the South London area. The designation 'Sub' was first officially used in 1941 to refer to newly built 4-car units. However, during the 1940s large numbers of earlier '3-Car Suburban Sets' were increased to four cars by the addition of an 'Augmentation' trailer, and became part of the 4-Sub category. The SR and BR (S) continued to build or else rebuild 4-car units to slightly different designs which became part of the 4-Sub Class. Many of these later examples survived in passenger use until late 1983, by which time British Rail had allocated to them TOPS Class 405. |
|
Type of Unit |
3rd-Rail Electric Multiple Unit |
Builder |
SR Eastleigh Works |
Build Dates |
1941 to 1951 |
Total Built |
185 sets |
Coaches Per Unit |
4-car |
Passenger Capacity |
368 to 386 seats |
Power Output |
1,000 to 1,100hp |
Top Speed |
75mph |
Operated By |
Southern Railway British Railways |
Main Duties |
Semi-Fast Regional passenger |
In Service Until |
1983 |
Surviving Examples |
Some individual cars preserved |