No. 116 Squadron RAF
Reformed as part of the RAF during the Second World War it served as an anti-aircraft calibration unit and also operated post-war from 1952 until 1958.Anti-Aircraft Calibration Flight (AACF) at Hatfield in February 1941 flying various aircraft during the Second World War (Lysanders, Hurricanes, Spitfires, Oxford and Tiger Moths) before being disbanded a second time at Hornchurch in May 1945.[2] During its time as an AACF, the squadron helped to calibrate the predictors on Anti-Aircraft batteries and so ended up with many detachments spread out across the United Kingdom.[5] It was reformed a second time in August 1952 from 'N' calibration flight at RAF Watton and continued for six years in this role flying Lincolns, Ansons, Hastings and Varsity aircraft.[6] Its role at RAF Watton was as part of the Central Signals Establishment which would deploy 116 Squadron (and others) as Radio Counter Measure aircraft during exercises involving not only the RAF, but other nation's forces too.