No. 1451 (Fighter) Flight was formed at RAF Hunsdon, Hertfordshire on 22 May 1941, equipped with Turbinlite Douglas Boston and Douglas Havoc aircraft. On operations they co-operated at first with Hawker Hurricanes of No. 1422 Flight RAF and later with Hurricanes of 3 Squadron. The flight was replaced with 530 Squadron on 8 September 1942 (not on 2 September due to administrative reasons) but officially disbanded as late as 25 January 1943.