Documents / Official release

CIA-UAP-003, The Central Intelligence Agency and Overhead Reconnaissance; The U-2 and OXCART Programs, 1954-1974

Central Intelligence Agency · 1954 · 406 pages · text from the file's own layer

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.

Open the PDF at page 68 Original source ↗

“Sea”42 pages

  • p. 16 …An RB-29 lost in the Sea of Japan on 13 June 1952 was probably also…
  • p. 38 …off to about 6 percent of its sea-level thrust. Finally, low structural load factors, like…
  • p. 62 …U-2 landing gear and pogos .Sea,et-
  • p. 69 …chap. 8, pp. 1-2 (TS Codeword); Miller, Lockheed U-2. pp. 19-20. Sea,at
  • p. 75 …a boiling point of 300°F at sea level. Manufacturing this special fuel required petroleum byproducts…
  • p. 80 …pounds heavier and delivered only 10.200 pounds of thrust at sea level; the resulting Secret
  • p. 89 …that they could not be flown at sea level faster than 190 knots in smooth air…
  • p. 98 …Sec.el NOfOftN Chapter 2 Sea,et
  • p. 102 …working on a cover story for over seas operations. It was important to have a plausible…
  • p. 115 North Sea First Overflights, 20 June - 5 July 1956 ) f\ Sweden .__,_,_"-.. ) ~ STOCICHOUil -~ ✓ vf!.Sea \f Finland…
  • p. 116 r/ o/ North Sea 1/'. AMSTERDAM ;, 0 0 Baltic S<la --- Mission 2013 4 July - - - Mission…
  • p. 120 …Black SEia ~ q, TurkE~Y ~ ~111~ 13~ • ? ~ ...• o<) Mediterranean Sea () .. •• •,,, Malta (U.K.) Sec, et NOFORN ...... . . .. ·:. ·.•
  • p. 131 Mission 1316, 1 November 1956 Turkey Cyprus ', (U.K .) '· Mediterranean Sea lncirlik Airbase _/\ o/ t. </ \ f…
  • p. 139 …Soviet border from the Black Sea to the Caspian Sea and on to Afghanistan. The System…
  • p. 146 …On 31 July, the same aircraft made a run over the Black Sea. There were a…
  • p. 148 …was the first to photograph the major Soviet space launch facility east of the Aral Sea…
  • p. 153 …of Soviet naval maneuvers in the Barents Sea. The final overflight of Detachment A , mission 2040…
  • p. 154 …K~ome<e,, tOO 200Miles Norwegian Sea Barents Sea Kola Peninsula '1'v Sweden f / Finlaind…
  • p. 155 …Norwegian radars tracked the overflights of the Barents Sea and Murmansk in October 1957, and Col…
  • p. 157 …well within international airspace above the Black Sea, as was the case on 27 October I957…
  • p. 158 …it turned abruptly upward over the Bering Sea just west of Alaska, climbed to 110,000…
  • p. 166 …the Soviet border and over the Black Sea without entering Soviet airspace. In late August, as…
  • p. 179 Baltic ~a Finland Black Sea Tu • ' -···1~- ..... ;.. :~.: ~~~~ •' :~·f.:~<,,· ·ir.fa 0 First British Overflight, 6 December…
  • p. 185 …Because the Bodo airfield was involved in NATO maneuvers taking place in the Barents Sea area…
  • p. 215 …Caribbean Sea W- Caymanlsl"""5 I_U."-i ~,...~ _''-),.,, .";!:-, - Mission 3086 5 August Mission 3088 29 August…
  • p. 216 …Caribbean Sea lOOKiloml.it•~ 100 200 Mff.-s Guvtof Mex~co \\\ I \ Caribbean Sea Multiple missions…
  • p. 225 …forces were conducting an all-out air-sea-land drive against the rebel-held areas in…
  • p. 226 f. 0 0 IND/AN OCEAN 300 -- 300 IIOOMlloo .·' Philippine Sea
  • p. 240 …Philippine Sea South China Sea Philippines • SeGFet NOFOAl<J 72<1~ (IU)0428J 4o92
  • p. 248 …6eeret NOFORN Chapter 5 Sea,et
  • p. 257 …The use of peripheral missions prevented any further losses, although one aircraft crashed into the sea…
  • p. 288 275 Settee NOPORN Chapter 6 Radar testing of A-72 mockup Sea,et
  • p. 316 …Shortly before Leningrad, the A-12 would head west-southwest down the Baltic Sea, skirting the…
  • p. 317 …2 would be flying farther out to sea, safely beyond the range of all Soviet SAMs…
  • p. 350 …B B Afghanistan, Tashkent, Tyuratam, Kazalinsk, Aral Sea 11 August 1957 4039 McMurray Lahore B B…
  • p. 351 …A-2 Dushanbe, Tashkent, Tyuratam, Kazalinsk, Aral Sea 10 September 1957 4059 Hall Adana B A…
  • p. 369 …AQUILINE 304, 339-343 Arabs 256 Aral Sea 135 Arbenz, Jacobo 16 "Archangel-I" 262 "Archangel…
  • p. 371 358 &ee,et NQFQRN Index Baltic Sea 3, 303 Baltic states 104 Baltimore; Maryland 6, 9…
  • p. 373 …186, 201, 205, 208-209, 299, 327 Caspian Sea 126 catheterized 64 cathode-ray tube 267…
  • p. 382 …23-24, 109, 139, 143, 164 Kara Sea 142 Kazakh language 135 Kazakhstan 135 Kazan', Soviet…
  • p. 385 …301 mechanical fuel totalizer/counters 68 Mediterranean Sea 114, 116. 121, 140, 142, 153 medium-range…
  • p. 393 …Pennsylvania 222 Sea of Japan 3 Seaberg, John 8-9. 12. 35-36. 333 SEAFOAM 211…
55
Realizing that the 240-inch lens was both too large and too
heavy for the camera bay, Baker scaled the lens down to a 200-inch
f/16. 0 system. This was still too big. Further reductions followed, re
sulting by July 1955 in a 120-inch fl 10.9 lens that met both the weight
and space limitations. Later in the year, Baker decided to make the
mirrors for the system out of a new, lightweight foamed silica mate
rial developed by Pittsburgh-Coming Glass Company. This reduced
the weight significantly, and he was able to scale up the lens to a
180-inch f/13.85 reflective system for a 13- by 13-inch format. In the
past, the calculations for such a complex camera lens would have
taken years to complete, but thanks to Baker's ray-tracing computer
program, he was able to accomplish the task in just 16 days.
When a C camera built by Hycon was flight-tested on 31 January
l 957, project engineers discovered that its 180-inch focal length,
which was five times longer than that of the B camera, made the
camera very sensitive to aircraft vibration and led to great difficulty
in aiming the C camera from altitudes above 68,000 feet. The engi
neers, therefore, decided to shelve the camera. More than five years
later, a redesigned C camera was employed during the Cuban Missile
Crisis in 0ctober 1962, but the results were not very satisfactory.
The failure of the C camera design was not a serious setback to
the high-altitude reconnaissance program, because the B camera
proved highly successful. Once initial difficulties with the film-trans
port system were overcome, the B camera became the workhorse of
high-altitude photography. An improved version known as the B-2 is
still in use. Both of the earlier A-model cameras were phased out after
September 1958.
During the period when he was designing lenses for the CIA's
overhead reconnaissance program, James Baker was also working on
classified lens designs for the Air Force and unclassified designs for
the Smithsonian Institution. To protect the security of Baker's work
for the Agency, Herbert Miller of the Development Projects Staff told
Baker to work on lenses for the U-2 in the open and not make any
effort to classify the documents connected with the project. Miller be
lieved that by not calling attention to the effort through the use of spe
cial security measures, the project could be completed faster and still
not be compromised. This "hiding in the open" strategy proved very
successful?
" Ibid.
6ee1 et NOFOfitM
Chapter 2
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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.