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
Sec, et NOFOAN Chapter 3 142 had flown a total of 23 missions: six over the Soviet Union, five over Eastern Europe, and most of the remaining 12 missions over the Mediterranean area.')() COOPERATION WITH NORWAY The final missions of Detachment A had one unforeseen result: the beginning of cooperation between CIA and the Norwegian Intelligence Service on the U-2 program. Norwegian radars tracked the overflights of the Barents Sea and Murmansk in October 1957, and Col. Vilhelm Evan° Chief of the Norweoian Defense Staff Intelli 0 ence Service In March 1958, Colonel Evang came to Washington and received a briefing from Arthur Lundahl together with sanitized photos that did not reveal the altitude of the aircraft or the focal length of the camera. The Agency provided additional photos to Norway during a visit by a PIO staff member in July.~' Later that year Norway agreed to provide an airfield for the United States to conduct U-2 flights that did not violate Soviet air space. On 15 September l a Detachment B staging party arrived at Bodo Air Force Base ·~~~-----c~~~~~\this was followed by an ELINT collection flight over international waters (the Kara Sea) on 25 October. On 6 November, the U-2 returned to Adana by conducting a lengthy ELINT collection flight along the bor ders of the Soviet Union and East Germany. During the initial portion of the mission, when the U-2 flew along the Soviet-Finnish border and then turned east over the Gulf of Finland to come within 60 miles of Leningrad (while remaining over international waters), the aircraft was the target of 23 unsuccessful Soviet intercept attempts.92 •., OSA History, chap. I [. p. 44: chap. I 9. annex 120 (TS Codeword). "' Ibid., chap. 11, pp. 44-45 (TS Codeword); NPIC History. vol. 3. pp. 447-8 (S) . •,, Mission folders !482 (9 October !958), 4092 (25 October !958). and 4093 (6 November 1958). OSA records. job 67-B-972. boxes 3 and 10. .Saeret
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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.