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

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.

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U. S. A I R FOR C E T EC H HI CAL I H FORMAT IO H SH E E T
(SUMMARY DA TA)
In order that your information may be filed and coded as accurately as possible, please use
the following space to write out a short description of the event that you observed. You may re•
peat information that you have already given in the questionnaire, and add any further comments,
statements, or sketches that you believe are important. Try to present the details of the observa•
tion in the order in which they occurred. Additional pages of the same size paper may be attached
if they are needed,
NAME ___________________
(Please Print)
SIGNATURE ________________
DATE ___________________
287
(Do Not Write in This Space)
CODE: