Documents / FOIA release
This is a CIA History Staff monograph by Gregory W. Pedlow and Donald E. Welzenbach, written in 1992 and approved for release in 2011. It covers the CIA's manned overhead reconnaissance program from 1954 to 1974 and its two aircraft, the U-2 and the A-12 OXCART. It follows their development, the overflights of the Soviet Union, the downing of Francis Gary Powers in 1960, and later operations. One section is titled "U-2s, UFOs, and Operation BLUE BOOK."
“Terry”1 page
005653421 UNCLASSIFIED Vseres.au Chapter 3 113 Bases for U-2 Operations in the Middle East, 1956 Set EO 12958 1.6(a1l>18<25Yrs Suez takeover, however, the second contingent of U-2 aircraft and pi- lots was still being trainedin his unit would not be ready for redeployment before the ena ot aug st and would not become es- tablished at Incirlik airbase near Adana, Turkey, until early September 1956. The Agency referred to the AQUATONE detachment at Adana as Detachment B, cryptonyml By whatever name, the u3 Adana detachment became the mainstay of -2 activity for the next three and a half years!' The fast-moving events of the Suez Crisis would not wait for Detachment B pilots to complete their training. With tension growing between Egypt and the Suez Canal Company's former owners, the United Kingdom and France, as well as between Egypt and Israel, US OSA History, chap. I 1, pp. 9. 39-40; chap. 12, pp. 5, 12 (TS Codeword). UNCLASSIFIED
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FOIA release, from the cia-readingroom 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.