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.
“Indian Air Force”3 pages
376 6eeret NOFORN Index Pakistan 128, 135. 139, 148, 163, 167-168. 170, 172, 174, 178. 189,247,316,319 Paksane, Laos 231 Palmdale, California 31 I panoramic-type framing camera 53 Paradise Ranch 57, 66 PARAMOUNT Committee 114, 116, 120 Parangosky. John 274,288.296, 309. 331 "parasite" aircraft 263 Paris Summit 172. 181-182 Pasadena, California 13. 50,252 Pathet Lao 221 PB-4Y aircraft 222 Pearl Harbor 322 _ Pearson. Drew 299 Peenemunde rocket project 2 Peiping. China 228-229 Pellegrini. Joseph J. 6 Pennsylvania State Police 222 Pentagon 5, 7, 9, ll. 13-14, 39, 78-79, 238 People ·s Liberation Anny (PLA) 215 People's Republic of China (PRC} 85, 135. 201, 215, 222, 225-226, 228-247, 253. 282, 301, 319. 339. 341 (See also China) radars 215 troop movements 215 nuclear plants 238 nuclear weapons establishment 226 Shuangchengzi missile-test range 235 periscope 56. 76 Perkin. Richard S. 18, 31. 50-52. 281-282, 31 I. 332-333 Perkin-Elmer (P-E) Company 18. 31. 50. 281 Perkin-Elmer tracking camera 52 Perkins. Courtland D. 260 Personnel (USAF). Deputy Chief of Staff for 74 Peshawar. Pakistan 135. 163-164. 167-168, 172, 174-!76 Philippines 305 Photo-Intelligence Division (PID) 82. 100. 135 photographic chemicals 121 Photographic Evaluation of /n/onniltion on Cuba 200 photographic resolution 281 photo interpreters 83. 108. Ill. 114-116. 120-121. 135, 138. 153. 172. 191, 198. 209. 2! l. 2 I6. 221. 236. 303, 307 photomapping I. 232 photoreconnaissance I. 4-5. 7. 22 photosatellite 270, 3 I3. 327. 330, 157 Phouma. Souvanna 221 PID's Special Projects Branch ll5 PINE RIDGE 343-344 "pioneer" photography 87 pitot-static tube 295 Pittsburgh-Corning Glass Company 55 Plans, Deputy Director for 157, 191-192, 327. 333
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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.