SR Class 4Sub
class of British 4-car suburban electric multiple units
This article needs to be updated.(January 2017) |
The Southern Railway (SR) gave the designation Sub to the wide variety of electric multiple units that were used on inner-suburban workings in the South London area. Originally these units were formed as three-car units, but in the 1940s, all surviving units were increased to four cars by the addition of an 'Augmentation' trailer. New four-car units were also built at this time, and these survived in passenger use until late 1983, by which time British Rail had allocated to them TOPS Class 405.
Southern Railway 4-SUB British Rail Class 405 | |
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In service | 1941-1983 |
Manufacturer | Eastleigh Works |
Constructed | 1941-1951 |
Number built | 185 units |
Number preserved | 1 unit |
Formation | DMBSO-TS-TSO-DMBSO |
Capacity | 368 - 386 Seats |
Operator(s) | |
Depot(s) | Wimbledon Traincare Depot (London) |
Specifications | |
Car length |
|
Width | 9 ft (2.74 m) |
Maximum speed | 75 mph (121 km/h) |
Weight | 134 long tons (136 t; 150 short tons) |
Traction motors | Four |
Power output |
|
Current collection method | Contact shoe |
Braking system(s) | Air (Westinghouse) |