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.
“US Navy”15 pages
100 Seoret NOFOAN Chapter 3 Secaet long-range area." 17 Fears of Soviet missile progress increased when Nikita Khrushchev stated on 23 April 1956, "I am quite sure that we shall have very soon a guided missile with a hydrogen-bomb warhead which could hit any point in the world." 18 Faced with growing Congressional and public anxiety over Soviet offensive capabilties, President Eisenhower approved the pro posed overflight program. Colonel Goodpaster relayed this decision to Bissell, Land, and Killian at a meeting on 21 June. The President nevertheless maintained tight control over the program and authorized only 10 days of overflights when operations over the Soviet Union were ready to start in early July 1956. 19 FIRST OVERFLIGHTS OF EASTERN EUROPE The CIA initiated U-2 flights over hostile territory even before the President granted final approval for overflights of the Soviet Union. After consulting with the Commander of US Air Force Europe, Richard Bissell used existing Presidential permission for Air Force overflights of the Soviet Union's East European satellites as his au thority to plan a mission over Poland and East Germany. Bissell had informed the President of his intention to conduct such missions in the "AQUATONE Operational Plan" submitted on 31 May. The first operational use of a U-2 took place on Wednesday, 20 June 1956. Carl K. Overstreet flew a U-2 equipped with an A-2 camera over Poland and East Germany. At the end of the mis sion, Detachment A immediately rushed the exposed film to the United States for processing. The developed film arrived at the Photo-Intelligence Division (PIO) on 22 June 1956. PIO personnel considered the pictures obtained by mission 2003 to be of good I. qua 1ty.- 0() " Robert Hotz, "Firing of900-Mile Russian Missile Spurs US Changes," Aviation Week, 20 February 1956, p. 27. " "Is Russia Really Ahead in Missile Race?." US News and World Report, 4 May 1956, p. 34. '" OSA History, chap. 11, pp. 27-29 (TS Codeword): A. J. Goodpaster, Memorandum for the Record, 21 June 1956, WHOSS, Alpha, DDEL (TS). "' OSA History, chap. 11, p. 27 (TS Codeword); Mission folder 2003 (20 June 1956), OSA records, job 67-B-328, box 7 (TS Codeword).
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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.