Documents / FOIA release
This is a CIA History Staff monograph by Gregory W. Pedlow and Donald E. Welzenbach, published in Washington in 1992 and approved for release in 2011. It covers the CIA's manned overhead reconnaissance program from 1954 to 1974, which developed and flew the U-2 and the A-12 OXCART. It traces the U-2's development, the overflights of the Soviet Union, the downing of Francis Gary Powers on 1 May 1960, and later operations. One section is titled U-2s, UFOs, and Operation BLUE BOOK.
“RAF”5 pages
-0O5653421 UNCLASSIFIED First flight of the A-12, 30 April 1962 - Secret 290 ED 129581.6(M>11110<25Yrs (Si SPEED-RELATED PROBLEMS As 158-equipped A-12s reached higher and higher speeds. more diffi- culties arose. Major problems developed at speeds between Mach 2.4 and 2.8 because the aircraft's shock wave interfered with the flow of air into the engine, greatly reducing its performance. Solving this problem required long and often hi g hly frustrating experimentation l'J58/SR-7 I Propulsion Integration, - Studies in Intelligence 26 (Summer 19)U):pp. I 1-18 (U): OSA History, chap. 20. pp. 58. 67 (TS Codeword). UNCLASSIFIED
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FOIA release, from the cia-readingroom 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.