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CIA-UAP-015, Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects)

Central Intelligence Agency · 312 pages · text from the file's own layer

This CIA archives copy, released in 2026, holds Project Blue Book Special Report No. 14 (Analysis of Reports of Unidentified Aerial Objects). The Air Technical Intelligence Center at Wright-Patterson Air Force Base issued it on 5 May 1955. The study reduced about 4,000 sighting reports from 1947 to 1952 to IBM punched cards, with 3,201 cases charted, and applied chi square tests to compare known and unknown sightings. It concludes that it is highly improbable the reports represent technological developments beyond present-day scientific knowledge.

From the source:Release of 2026-06-12 This is the USAF Project Blue Book with a CIA cover sheet stating the document is "Official Record Copy." With the exception of the handwritten note on the first page, the content of this document has been available on CIA's public website.

  • p. 96 …approach the speed of a jet before it disappeared. No propulsion was apparent. Time of observation…
to a patch
Surface appeared dirty
of motion
/
Direction
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Case X (Serial 1119. 00}
IAn employee in the supersonic laboratory of an aeronautical lab
oratory and some other employees of this lab, were by a river, 2- 1/2
miles from its mouth, yvhen they saw an object. The time was about 1700 Ihours on May 24, 1949. The object was reflecting sunlight when observed
by naked eye. However, he then looked at it with 8-power binoculars, at Iwhich time there was no glare. (Did glasses have filter?} It was of
metallic construction and was seen with good enough resolution to show
that the skin was dirty. It moved off in horizontal flight at a gradually in Icreasing rate of speed, until it seemed to approach the speed of a jet
before it disappeared. No propulsion was apparent. Time of observation
was 2- 1/2 to 3 minutes. I
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in rear
Something equivalent
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and spotty in color I
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86

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Case file, from the pursue collection. The PDF is mirrored here; the original link is above. 312 pages are in the text index: search them above, or from the library's search.