 Wireless telegraphy ratings started their training in June 1940, and a radio direction finding school was added in 1942.In 1946 "Collingwood" took over the training of both officers and ratings in the maintenance of all electrical and radio equipment in the fleet, except that of the Fleet Air Arm.The Maritime Warfare School was formed in January 2002 as part of the British Government's Defence Training Review with, in particular, the transfer in of training previously undertaken at HMS "Dryad".