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.
“Headquarters”22 pages
383 SR-71 295, 302, 308-31 I, 321 SS-4 (SHYSTER) MRBM 206 SS-6 ICBM [ 160, 165, 171-171 stainless steel 277, 280 Stassen, Harold 330 State Department 81, 95, IOI, 146, 154, 163, 179, 186, 196-197, 212, 224-225, 229,243,249 "stealth" research 313 stereo camera 281, 252 stereoscopic lenses 250 Steuart Building 83, Ill, 114 STEVER 260. 333 Stockman, Hervey 65. J-04-105 STPOLLY 222,224,240 Strategic Air Command (SAC) 11, 14, 17, 20, 26, 42, 60, 74-76, 78, 89, 93, 95, 198, 201, 207-210, 299, 230 meteorologists 42 strategic bombing 49 "strategic hamlet" 230 strategic intelligence 82,115,152,302,304,313,315, 319,322 strategic reconnaissance 9, 122,230,295, 297, 299, 313, 320,322,329 Strauss, Lewis 56 Strong, Philip G. 14-17, 21-22, 24-25, 29-30, 333 subsonic 8, 14, 260, 263 Seeret NOFORN Index Suez Canal 112-114, 117,120,256 Suez Canal, Israeli-British-French attack on 116 Suez Canal Company I 12-113 Suez Crisis 152 Suhrawardy, Huseyn Shaheed 135 suicide pill 65 Sukarno, Achmed 212,215 Sulawesi (Celebes) 212 Sullivan, Dennis 307 Sumatra 212 SUN SPOT 171 Super Snooper 132 supersonic designs 260 - supersonic interceptor 285 supersonic technology 292-293 Support. Directorate of 40, 83 surface-to-air missile (SA-2) sites 201 surface-to-air missiles 257,299,301,303,339 surface-to-surface missiles 205-206, 209. 304. 306 Sverdlovsk, Soviet Union 172, 176-179, 185 Symington, Stuart 99, 161 synthetic lubricants 279 Syria 114, 120, 133, 153 Syrian radars 343 System-I 335 &ee,er
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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.