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Project Blue Book Special Report (second copy)

Internet Archive · 309 pages · text from the file's own layer

This is Project Blue Book Special Report No. 14, "Analysis of Reports of Unidentified Aerial Objects," Project No. 10073, dated 5 May 1955. The study reduced about 4,000 sighting reports received by the U.S. Air Force between June 1947 and December 1952 to IBM punched cards and analyzed them statistically, including chi square tests comparing knowns with unknowns. It concludes that the reports very probably do not represent technological developments beyond present scientific knowledge, and it notes that no case produced physical evidence.

Open the PDF at page 287 Original source ↗

“multiple objects”5 pages

  • p. 17 …Therefore, a designation of OBJECT SIGHTINGS was established, with the following definition: OBJECT SIGHTING - (1) The…
  • p. 18 …An example was the finding of the approxi- mate angular velocity and acceleration of the object…
  • p. 23 …the reported color of the objects, because of the multiplicity of reports on some of the…
  • p. 76 …a greater proportion of UNKNOWNS in the multiple object classification. Apparently these are harder to identify…
  • p. 299 …Unit sightings, single observers Unit sightings, multiple observers Object sightings X Y 0 1 2 3…
U. S. AIR FORCE TECHNICAL INFORMATION SHEET
(SUMMARY DATA)
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
(Do Not Write in This Space)
CODE:
287
£•>

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Report, cited by the archive. The PDF is mirrored here; the original link is under it. 309 pages are in the text index: search them above, or from the library's search.