Documents / Case file
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.
I I I I I I I I I I I I I I I I I I I I I I INDEX OF FORMS Exhibit Bl. Tentative Observers Data Sheet . Exhibit B2. Tentative Observers Questionnaire Exhibit B3. U. S. Air Force Technical Information Sheet. Exhibit B4. Codes for Work Sheet Exhibit BS. Work Sheet . Exhibit B6. Codes for Card Bible. Exhibit B7. Card Bible . Exhibit BS. Example of an IBM Card 257 and Z58 Page 259 267 277 289 297 301 309 313
Case file, from the pursue collection. The PDF is mirrored here; the original link is under it. 312 pages are in the text index: search them above, or from the library's search.