The papers in this series, although taken from Ministry of Aircraft Production unregistered sources, include groups of pre-War material originally raised under the auspices of the Air Ministry. They also include files relating to:
- administrative matters
- contracts and finance
- industry and labour
- production and supply
- materials
- armaments and bombs
- radar and radio
- research and development, including that on engines
- missions and visits, including the British Technical (Tizard) Mission to North America 1940 to 1941
- the Air Supply Board
- the Aircraft Supply Council
- the Air Council Committee on Supply
- the 'Dam Busters' raid
Also included are the papers of Sir Wilfrid Freeman and Sir Robert Watson-Watt, and the development of radar devices at the Air Ministry Research Station at Bawdsey in Suffolk.