Claim: The Miles Hawcon, which had four interchangeable wings of different thickness, was used for thick-wing research by the Royal Aircraft Establishment, 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).
Evidence: It had four interchangeable wings of different thickness. The aircraft, serial number K5925, was used for thick-wing research by the Royal Aircraft Establishment. 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.