The Tr.9 Spitfires were used to train pilots for the IAC Seafire fleet and the course included gunnery practice, for although the Spitfire was primarily a trainer, it was equipped with two .303 Browning machine guns, one in each outer wing bay. In time, the IAC retired its Seafire fleet and the Spitfires took on their duties until in 1960 they too were retired. Most of the Tr.9 aircraft passed to the ground technical training school at Baldonnel where they were used as instructional airframes for the training of aircraft engineers for the Air Corps.
