This release, containing approximately 1,500 pages of material, consisting of about 350 documents, maps, diagrams, and photographs dealing with the A-12 reconnaissance aircraft is occasioned by CIA's acquisition on loan from the Air Force of the eighth A-12 in the production series of 15. Known as Article 128, the aircraft will be on display at the Agency's Headquarters compound in Langley, Virginia. The release also coincides with the publication of CIA's unclassified official history of the A-12, Archangel: CIA's A-12 Supersonic Reconnaissance Aircraft by the Agency's Chief Historian, David Robarge. The newly declassified material will provide researchers on aviation and intelligence with significant additional detail about the design and development of the A-12 -- still the fastest and highest flying piloted operational jet aircraft ever built -- and its use as an intelligence collection platform in East Asia.