It was based at Royal Air Force Stations Northolt, Duxford and Wittering.
Also sharing Wittering with the AFDU was the Naval Air Fighting Development Unit.
The units were absorbed into the Central Fighter Establishment and moved to RAF Tangmere in 1945.
[2] The AFDU was reconstituted in the 1950s at RAF Tangmere as the Air Fighting Development Squadron (AFDS), subsequently relocating to RAF Coltishall where it operated the BAC Lightning jet fighter in its P.1B, F.1 and F.1A variants.
The AFDS moved to RAF Binbrook in October 1962, operating the F.2 and T.4 variants until the squadron was absorbed by the Central Fighter Establishment (CFE).