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.
“Hill”15 pages
356 iieeret NOFOAN Index Albania 140, 157 Albuquerque, New Mexico 74, 78-79 Allen, Edward L. 21 Almaza Airbase, Egypt 119 altimeters 59-60 altitude I, 4-6, 7, 8-11, 12, 13-19, 22-26, 33-35, 39, 46-47, 49, 52, 54-55, 59, 61-64, 71-72, 74, 76, 79-80, 84, 87, 89. 93-94, 97, 101, 108, 125, 132, 142, 145, 148-149, 152, 156-157, 168, 175-179, 185,207, 217-219, 229. 235, 240-241, 246-247, 251, 254, 259-260, 262, 263, 267, 268, 273, 277, 278-279, 284,286,288,292,294, 296-297, 304, 312-313, 320, 330, 339, 340, 343 aluminum 271 Ambon Island 214 American Civil War I Amory, Robert 114 Anderson, Rudolph 210 Andaya, Norway 172 "Angel", 45, 50, 66,262 Anglo-French bombing campaign 117 Anglo-Soviet relations 94 Ankara, Turkey 135, 178 antiaircraft missile 168 antiaircraft weapons 93, 148 antiballistic missile system 298,303 antiradar studies 267,274 Apollo VII 254 Applied Physics Division 339 AQUATONE 40-43, 59. 62, 66, 74, 77, 82, 88, 93, 96, 100, 108, 113, 115, 122, 134, 155 AQUILA 341 AQUILINE 304, 339-343 Arabs 256 Aral Sea 135 Arbenz, Jacobo 16 "Archangel-I" 262 "Archangel-2" 262 Area 51, 56. 72. 74-75, 77-78, 130-131, 133. 274, 283-284, 286, 291. 303, 305. 341 Arizona 80 Arkansas 78 Armenia 124. 144. 146 arms limitation negotiations 147 arms race 318 Army Air Corps 21. 56 Army Air Force 50,328,330 article 121 286, 288 article 126 296 article 133 296 article 341 66. 71, 131-132 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.