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.
“The Pentagon”12 pages
84 Geeret NOFOAN Chapter 2 • Project GENETRIX balloon launch •' i 't - THE IMPACT OF THE AIR FOR:CE PROJECT GENETRIX BALLOONS While the Agency was mak ing its f i nal preparations for U-2 over fli ghts. the Air Force started a reconnaissance proj ect that would cause considerable protest around the world and threaten the exist ence o f the U-2 overfl ight program before it even began. Project GENETRIX involved the use of camera-carrying balloons to obtain high-altitude photography of Eastern Europe, the Soviet Union. and Seeret
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 406 pages are in the text index: search them above, or from the library's search.