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
FORN Chapter 3 131 Wallpaper" CO5653421 UNCLASSIFIED engine of the U-2 known as article 341, causing it to overheat and flameout. Unable to restart the power plant, Lockheed test pilot Robert Sicker bailed out but was struck and killed in midair by the U-2's tail lane. The aircraft crashed in an area so remote search teams needed four days to locate the wreckage. e extensive search attracted the attention of the press. and a ED 12958 1.6(dini>1o<25Yrs Is) 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.