The British Rail Class 90 is a type of electric locomotive. They were built for mixed-traffic duties, operating from 25 kV AC overhead lines and producing 5,000 bhp (3,700 kW). They weigh 84.5 tonnes and can typically achieve a top speed of 110 mph (177 km/h).
Freightliner Class 90 at Edinburgh Waverley in 2016
A Class 90 (90050) and a Class 91 (91020) under construction at Crewe Works in 1990
90001, first of the class, at Stafford in InterCity Swallow livery
BR Class 90/1 hauling car train at Stratford
The British Rail Class 81 is a class of AC electric locomotives that formerly operated on the West Coast Main Line of the London Midland Region of British Rail. Originally designated AL1, it was the first type of AC electric locomotive to be delivered to British Railways.
81004 at Birmingham New Street in 1984
A row of Class 81 and 85 locomotives waiting to be scrapped. The first and third locomotives from the left are Class 81s.