Extensive 3rd-rail electrification of the Southern Region led to the widespread adoption of these practical EMUs, and the 4CIG (British Rail Class 421) was initially introduced on the London-Brighton Line before being pressed into service on the Portsmouth Direct Line between London Waterloo and Portsmouth Harbour.
The 4CIG units received a facelift in the late 1980s, and were eventually withdrawn from mainline passenger service in the early 2000s.
Scenarios
Five scenarios for the Portsmouth Direct Line Add-On:
- Southern Electric
- City Limited
- Slammed Doors
- Battle of Havant
- Guildford 70C
