from Tern Hill as an detachment flying the Armstrong Whitworth Whitley IVA from June 1939 until August 1939. Tern Hill then turned into a fighter airfield with Supermarine Spitfires and Hawker Hurricanes with the first fighter squadron arriving on 10 October 1939. The squadron was No. 611 Squadron RAF with the Spitfire I and stayed until 13 December 1940. The next squadron was No. 46 Squadron RAF with the Hurricane I as a detachment from the main squadron which was based at RAF Digby in Lincolnshire. The detachment arrived on 13 June 1940 and stayed until 1 September 1940. The next squadron is residence was No. 306 Polish Fighter Squadron with their Hurricane I's from 7 November 1940 staying until 3 April 1941. On 30 May 1941 a new squadron arrived in the shape of No. 403 Squadron RCAF with flew three versions of the Spitfire, the marks I, IIA and VB. The squadron moved to RAF Hornchurch on 4 August 1941. During late March 1941 No. 605 Squadron RAF moved in with their Hurricane IIA's but they only stayed for two months leaving on 30 May 1941. The last fighter squadron to be posted to Tern Hill was No. 131 Squadron RAF which arrived on 6 August 1941 with their Spitfire IA and IIA's before leaving on 27 September 1941. The airfield then began to host training units such as No. 5 (Pilot) Advanced Flying Unit which arrived on 1 April 1942 and left on 12 April 1946. The following units were posted to RAF Tern Hill at some point: A detachment of No. 6 Anti-Aircraft Co-operation Unit RAF between 2 April and 1941 A detachment of No. 52 Operational Training Unit between September 1942 and October 1942 No. 10 Flying Training School RAF between 1 January 1936 and 1 November 1940 No. 4 Aircraft Storage Unit between 1 June 1937 and 10 February 1938 No. 24 Stores Unit between 10 February and 28 March 1938 No. 15 Personnel Transit Centre between 23 August 1939 and unknown Training Command Communication Flight RAF between September 1939 and 12 January 1940 No. 25 Group Communication Flight RAF between March 1940 and 23 April 1947 No. 5 Service Flying Training School RAF between 16 November 1940 and 1 April 1942 No. 22 Group Communication Flight RAF between 1 August 1943 and 1 April 1964 No. 10 Service Flying Training School RAF 29th