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.
“United Press”17 pages
0 375 nuclear fireball 240 nuclear resonance 332 nuclear strike 292 nuclear testing moratorium 317 nuclear tests 133, 147, 240 nuclear weapons 2, 19-20, 99, 147, 226, 238,240,317 GARFISH 44 O'Donnell, Emmett (Rosy) 7J. oblique photography __ -- 135. 189,244 Offshore Islands Crisis 215-216 OILSTONE 60-61 Okinawa 301-302, 305-306, 308. 311 Old Executive Office Building 27 OLIVE HARVEST 257 Omaha, Nebraska 60 112A camera 250 112B camera 250, 252 "Open-Skies" 96 Operation Overflight 186 optical distortion 282 ~&Gret NQFQRN Index Optical Research Laboratory 21-22 optical systems 52 order-of-battle 82, 134, 322 "Oscar-Sierra" unit 234 over-the-horizon radar 241 Overhage, Carl F. P. 18, 21, 331 overhead photography 82, 87. 172, 237-238 overhead reconnaissance missions 188 Overstreet, Carl K. 100 OXCART 61, 73, 157, 191,236.238, 252-253, 259,274, 277-313. 320-322, 327-333, 336, 339 oxygenation 62 p P-38 fighter IO, 329 P-40 fighter 328 P-51 Mustang 214 P-80 fighter 10, 45 P-80 Shooting Star 45 P2V7 222 P3A 222 Pacific Ocean 247 Padang. West Sumatra 212 6ee,et
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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.