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.
“Cooper”12 pages
54 &ee1 et NOFOAN Chapter 2 B camera . operating time. Three of the seven B-camera frames provided stereo coverage. The complex B cameras were engineered by Hycon's chief designer, William McFadden.'" James Baker's idea for the ultimate high-altitude camera wa:s the C model that would have a 240-inch focal length. In December 1954, he made preliminary designs for folding the optical path using three mirrors, a prism, and an f/20.0 lens system. Before working ouIt the detai ls of this design, however, Baker flew to California in early January 1955 to consult with Kelly Johnson about the weight and space limitations of the U-2·s payload compartment. Despite eve~y ef fort to reduce the physical dimensions of the C camera, Baker ne,eded an additional six inches of payload space to accommodate the bigger lens. When he broached this subject to Johnson, the latter replied, " Six more inches? I'd sell my grandmother for six more inches!I" ~ •·• Ibid.: Bakl!r interview (S), '' Bakc:r intl!rvkw (S).
Not linked to a story yet.
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.