No. 1455 (Fighter) Flight was formed at RAF Tangmere, West Sussex on 7 July 1941, equipped with Turbinlite Douglas Boston and Douglas Havoc aircraft. On operations they co-operated with the Hawker Hurricanes of 1 Squadron and 3 Squadron. The flight was replaced with 534 Squadron on 2 September 1942. 534 Sqn, which had taken over men and machines, carried on flying the Turbinlite Bostons and Havocs till the system was abandoned on 25 January 1943, when Turbinlite squadrons were, due to lack of success on their part and the rapid development of AI radar, thought to be superfluous.