Documents / Official release
This is a Secret History Staff monograph by Gregory W. Pedlow and Donald E. Welzenbach of the Central Intelligence Agency, published in 1992. It gives a history of the CIA's manned overhead reconnaissance program from 1954 to 1974, covering the development and operation of the U-2 and the A-12 OXCART aircraft. It covers overflights of the Soviet Union, the 1960 downing of Francis Gary Powers, and later operations. One section is titled "U-2s, UFOs, and Operation BLUE BOOK."
From the source:Release of 2026-06-12 This CIA History Staff document chronicles the complete history of the U-2 and OXCART (A-12) high-altitude reconnaissance aircraft programs from 1954 to 1974, detailing their development, operations over the Soviet Union and other targets worldwide, the famous downing of Francis Gary Powers in 1960, organizational reforms following that incident, and the eventual transfer of operations from CIA to Air Force control. A more redacted version of this document has been available on CIA's public website.
“Tibet”7 pages
325 APPENDIX A Acronyms AEC AFB AFDAP AMO ARC ARDC ASPIC ATIC BSAP BUORL COMINT COMIREX COMOR DB DCI DCID DDCI DOI DDP DDS&T DPD DPS ECM EG&G ELINT FCRC HASP IAC IAS ICBM IR ISP JRC MATS Atomic Energy Commission Air Force Base Air Force office symbol for the Assistant for Development Planning under the Deputy Chief of Staff for Development Air/Maritime Division Ad Hoc Requirements Committee Air Research and Development Command (USAF) Asian Photographic Interpretation Center Air Technical Intelligence Center (USAF) Boston Scientific Advisory Panel Boston University Optical Research Laboratory Communications Intelligence Committee on Imagery Requirements and Exploitation Committee on Overhead Reconnaissance "Dirty Bird" Director of Central Intelligence Director of Central Intelligence Directive Deputy Director of Central Intelligence Deputy Director for Intelligence Deputy Director (or Directorate) for Plans Deputy Director for Science and Technology Development Projects Division Development Projects Staff Electronic Countermeasures Edgerton, Germeshausen & Grier, Incorporated Electronic Intelligence Federally Controlled Research Center High-Altitude Air Sampling Program Intelligence Advisory Committee Indicated air speed Intelligence community Intercontinental ballistic missile Infrared Intelligence Systems Panel (USAF) Joint Reconnaissance Center Military Air Transport Service (USAF) 11,soFet NOFORN Appendix A See,et IC
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Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. 406 pages are in the text index: search them above, or from the library's search.