English Electric Class 50 Owners' Workshop ManualThe Class 50 locomotives were built by English Electric between 1967 and 1968. Fifty examples were built and were initially used to haul express passenger trains on the, then non electrified, section of the West Coast Main Line between Crewe and Scotland. They were originally hired from English Electric Leasing and were eventually purchased outright by BR around 1973. Class 50s were nicknamed "Hoovers" by rail enthusiasts because of the distinctive