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.
“The Advance”34 pages
174 Sec, el NOFOAN Chapter 4 of Soviet ICBM sites. The other proposed overflight, Operation TIME STEP out of Greenland, was more likely to run into bad weather (which would affect both navigation and photography) because the flightpath would remain above 60° north latitude during the entire mission. Furthermore, mission planners opposed this route because of its greater risk. In his letter to Richard Bis sell on 14 March 1960, Colonel Burke stated: Operation "TIME STEP" is our last choice because we can as sume, with a 90 percent probability of being correct, that we will be detected on entr_,; tracked accurately throughout the period in denied territory (approximately four hours), and will evoke a strong PVO [Soviet Air Defense} reaction. This flight plan would permit alerting of SAM sites, and pre-positioning of missile equipped fighters in the Murmansk area (point of exit) thus enhancing the possibility of successful intercept. In addition, we must assume that even were the Soviets unable to physically in terfere with such an incursion, sufficient evidence will be avail able to permit them to document a diplomatic protest should they desire to do so. 15 The concerns raised by Colonel Burke about TIME STEP should also have been raised about Operation GRAND SLAM, which would be the most adventuresome overflight to date because it proposed covering so much of the Soviet Union. If the Soviets could track the U-2 early in the mission, they would have plenty of time to prepare to intercept the aircraft. The pilot selected for Operation GRAND SLAM was Francis Gary Powers, the most experienced U-2 pilot in the program. Powers had joined the project in May 1956 and had flown 27 operational mis sions in the U-2. including one each over the Soviet Union and China as well as six along the Soviet border. To prevent the U-2 from being seen at Peshawar, project manag ers decided to ferry the aircraft from Adana to Pakistan the night be fore the scheduled flight. Once the plane was refueled and its camera was loaded, it would take off at daybreak, with little if any exposure to local residents because of darkness and its short stay-less than six " Memorandum for Richard M. Bissell. Deputy Director (Plans). from Col. William Burke. Acting Chic:f. DPD, "Evaluation of Proposed CHALICE Operations," 14 March 1960, IC Staff, COMIREX records, job 33-T-123A. box 10, "CHALICE (General)" (TS Codeword). 6ec,et
Not linked to a story yet.
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.