The group HQ was at RAF West Drayton and it had the Aeroplane and Armament Experimental Establishment and Nos 15 and 22 Squadrons at RAF Martlesham Heath under its command.

The group also had control over RAF stores, repair depots, and schools, however, it disbanded on 1 February 1934.

[3] Second World War The group was transferred to RAF Flying Training Command on 27 May 1940, responsible for the RAF College and the Service Flying Training Schools from the Midlands northwards.

The group HQ relocated to RAF Spitalgate on 28 July 1944.

54 Group RAF, which had been reformed 22 months earlier within RAF Flying Training Command to control the Initial Training Wings and Grading Schools.

21 (Training) Group, at a given point in time, throughout its operational existence: November 1939[4] HQ at RAF Cranwell