The Royal Aircraft Establishment (RAE), was a British research establishment, known by several different names during its history, that eventually came under the aegis of the UK Ministry of Defence (MoD), before finally losing its identity in mergers with other institutions.

The first site was at Farnborough Airfield ("RAE Farnborough") in Hampshire to which was added a second site RAE Bedford (Bedfordshire) in 1946.

In 1988 it was renamed the Royal Aerospace Establishment before merging with other research entities to become part of the new Defence Research Agency in 1991.

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