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.
“Headquarters”22 pages
341 or more of the aircraft was always being repaired, and eventually three of the five AQUILINE prototypes were destroyed in testing. Although AQUILINE's visual and accoustic signatures were very small, its radar cross section continued to cause problems. The radar cross section at low frequencies was less than one-tenth of a square meter, giving it a radar signature smaller than that of an eagle, but there were flares in the VHF region that increased the likelihood of detection. Studies indicated that the radar cross section problems could eventually be reduced to acceptable levels, but the greatest weakness of the AQUILINE project was its navigational system. AQUILINE did not have a programmable autopilot; it had to be flown by remote control from the ground. Once the aircraft flew over the horizon. all navigational commands had to be relayed to it by high-flying aircraft. A DC-6 loitering at 25,000 feet would give AQUILINE a range of 250 nautical miles: use of a U-2 at 70,000 feet could increase this to 350 nautical miles. - -Such a range was suitable for the targets originally conceived for AQUILINE, but the need for intelligence on targets located much dee er in the Soviet Union and the Peo le's Re ublic of China and the development time and costs for ~~~~~-c---~ AQUILINE began to soar. By l971 ORD had spent six years and $33 million on AQUILINE but still had many important problems to re solve. At this point the project was turned over to the Office of Special Activities for operational testing at Area 51 in Nevada. Flight tests showed the aircraft to be successful by the standards originally set for the project in l 967, as it flew l 30 miles and obtained very high reso lution photography of a target before returning successfully to the original launchsite. However, improving AQUILINE sufficiently to make it a practical long-range reconnaissance system was estimated to cost another $35 million and take two to three years. On the recom mendation of DDS&T Carl Duckett on I November l 971, Project AQUILINE was canceled. The project's aircraft and equipment were eventually transferred to the US Army for use in a battlefield manage ment system known as AQUILA, which has yet to be deployed be cause of continuing developmental problems. Sectet NOfORN Appendix E Sec.et
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Official release, from the pursue 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.