sentences:  The Bulldogs were used for training by potential RAF pilots whilst the Chipmunks were used by local Air Cadets.In November 1972, the Fleet Requirements Unit was relocated from Hurn to RNAS Yeovilton and amalgamated with the Air Direction Training Unit to form the Fleet Requirements & Air Direction Training Unit (FRADTU).The word 'Training' was later dropped from the Unit's name to form the more familiar FRADU.