ROTOR was a huge and elaborate air defence radar system built by the British Government in the early 1950s to counter possible attack by Soviet bombers. The system was built up primarily of war-era radar systems, and was used only shortly before being replaced by more modern systems. Post-war situation UK radar operations were wound down late in the war, and by the time the war ended were already largely unused. It was assumed that another war was at least ten years away, and the need for any im… (More on Rotor)