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
357 article 345A 79 article 346 80 article 347 104 article 349 219 article 354 80 article 357 80 article 360 175,217 article number 59 articles 20, 59, 99,216 Ashford, Douglas E. 30 Asia 135, 190,198,211,216,221, 230,233, 300-301, 310,319 Asian Photographic Interpretation 229 aspheric lens 53 ASPIC 229 Aswan Dam 112 atmosphere 278, 25, 152, 182,215 atmospheric testing 147 atomic bomb 19 Atomic Energy Commission 56, 133, 182, 241-242, 274 atomic energy facilities 233 ATR (Air Transport Rating) 187 Atsugi, Japan 134, 215, 218 autopilot 76, 341-342 Aviation Week 216 AXILLARY 342 Ayer, Frederick, Jr. 14-15, 36,327 B B model camera 53 B-17 bomber 222 B-26 bomber 214 B-36 bomber 22, 50 B-47 bomber 72 B-52 bomber 20, 111, 291, 3 12 B-57 bomber 5, 8-9, 13, 15, 24, 35, 72 B-58 bomber 262, 269-270, 273 B-58 "Hustler" bomber 262 B-58A bomber 269 B-588 "Super Hustler" 262 B-58B bomber 263. 269 B-70 bomber 279. 293 BACKFIN 167 "badlands" 71 Baikal, Lake 128 Baird. Walter 56 Baird Associates 56 Baker, James G. 18, 21-25, 29-31. 46, 50-56, 108,253,282.327, 332-333 Balkhash, Lake 138, 139 ballistic missiles 2,201,206,299,318 See1et NOF8RN Index Saeret
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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.