Port of London Authority Shunters

The London docks, later the Port of London Authority, maintained an extensive railway network with a fleet of steam industrial locomotives. In the early 1960s the remaining steam locomotives were replaced by six new diesel-electric shunters built by the Yorkshire Engine Company [1]. 
Four of the PLA YEC diesels [1]


Information
Number built: 6
Built: 1961
Builder: Yorkshire Engine Company
Motor: Rolls Royce C6 diesel
Power: 220 hp (164 kW) 
Wheel arrangement: 0-4-0DE

The locomotives remained in service until declining traffic, largely due to containerisation of maritime cargo, led to the closure of the PLA railway network in 1970.

[1] "Steamers pass from the scene", Meccano Magazine (January 1962) p. 12