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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.

Open the PDF at page 114 Original source ↗

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Table A206.
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INDEX OF TABLES
(Continued)
Evaluation of Unit Sightings for All Years by Number of Objects per Sighting
for Duration of Sighting, Three to Ten Objects .
Evaluation of Unit Sightings for All Years by Number of Objects per Sighting'
for Duration of Sighting, Eleven or More Objects .
Evaluation of Unit Sightings for All Years by Number of Objects per Sighting
for Duration of Sighting, Number of Objects Not Stated
Evaluation of Object Sightings for All Years by Number of Objects per Sighting
for Duration of Sighting, One Object
Evaluation of Object Sightings for All Years by Number of Objects per Sighting
for Duration of Sighting, Two Objects .
Evaluation of Object Sightings for All Years by Number of Objects per Sighting
for Duration of Sighting, Three to Ten Objects •
Evaluation of Object Sightings for All Years by Number of Objects per Sighting
for Duration of Sighting, Eleven or More Objects •
Evaluation of Object Sightings for All Years by Number of Objects per Sighting
for Duration of Sighting, Number of Objects Not Stated •
Evaluation of All Sightings for All Years by Geographic Location
Evaluation of Unit Sightings for All Years by Geographic Location
Evaluation of Object Sightings for All Years by Geographic Location
Evaluation of All Sightings for All Years by North American Location.
Evaluation of Unit Sightings for All Years by North American Location
Evaluation of Object Sightings for All Years by North American Location
Evaluation of All Sightings for All Years by United States Regional Location
Evaluation of Unit Sightings for All Years by United States Regional Location
Evaluation of Object Sightings for All Years by United States Regional Location
Evaluation of All Sightings in the Strategic Areas of the Central East Region
Evaluation of All Sightings in the Strategic Areas of the Central Midwest Region
Evaluation of All Sightings in the Strategic Areas of the Central Farwest Region
Evaluation of All Sightings in the Strategic Areas of the South Midwest Region
Evaluation of All Sightings in the Strategic Areas of the South West Region .
Evaluation of All Sightings in the Strategic Areas of the South Farwest Region
Evaluation of Unit Sightings in the Strategic Areas of the Central East Region
Evaluation of Unit Sightings in the Strategic Areas of the Central Midwest Region
Evaluation of Unit Sightings in the Strategic Areas of the Central Farwest Region .
Evaluation of Unit Sightings in the Strategic Areas of the South Midwest Region
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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.