Chipmunk aircraft are in formation above the Exeter and the River Exe. The aircraft was used for training RAF pilots from 1947 to 1956. They were made by de Havilland in Hatfield and Broughton near Chester. The Royal Air Force received 735 Chipmunk T10s and some remained in service until 1996. Chipmunk aircraft or their cockpits survive to this day and are used in to train pilots in the different technique of tailwheel flying. It took over from the de Havilland Tiger Moth biplane of the 1930s.