Documents / Case file

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. 121 …lln ;i._;i.. ) l..17 !f/) ft,,;- roe• .2,/ l..rs.9 61 IJ.(/ /)_{) P.P…
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Table AllO.
Table A 111.
Table All2.
Table A 113.
Table All4.
Table All 5.
Table All6.
Table Al 17.
Table All 8.
Table All 9.
Table AlZ0.
Table Al2l.
Table Al22.
Table Al 23.
Table Al24.
Table Al 25.
Table Al26.
Table Al27.
Table Al 28.
Table Al29.
Table Al30.
Table Al3l.
Table Al32.
INDEX OF TABLES
(Continued)
Evaluation of Unit Sightings for All Years by Duration of Sighting for Months
of Year, Five Seconds or Less 173
Evaluation of Unit Sightings for All Years by Duration of Sighting for Months
of Year, Six to Ten Seconds 174
Evaluation of Unit Sightings for All Years by Duration of Sighting for Months
of Year, Eleven to Thirty Seconds . 175
Evaluation of Unit Sightings for All Years by Duration of Sighting for Months
of Year, Thirty One to Sixty Seconds 176
Evaluation of Unit Sightings for All Years by Duration of Sighting for Months
of Year, Sixty One Seconds to Five Minutes • 177
Evaluation of Unit Sightings for All Years by Duration of Sighting for Months
of Year, Six to Thirty Minutes 178
Evaluation of Unit Sightings for All Years by Duration of Sighting for Months
of Year, Over Thirty Minutes 179
Evaluation of Unit Sightings for All Years by Duration of Sighting for Months
of Year, Duration Not Stated . 180
Evaluation of Object Sightings for All Years by Duration of Sighting for Months
of Year, Five Seconds or Less 181
Evaluation of Object Sightings for All Years by Duration of Sighting for Months
of Year, Six to Ten Seconds 182
Evaluation of Object Sightings for All Years by Duration of Sighting for Months
of Year, Eleven to Thirty Seconds • 183
Evaluation of Object Sightings for All Years by Duration of Sighting for Months
of Year, Thirty One to Sixty Seconds 184
Evaluation of Object Sightings for All Years by Duration of Sighting for Months
of Year, Sixty One Seconds to Five Minutes . 185
Evaluation of Object Sightings for All Years by Duration of Sighting for Months
of Year, Six to Thirty Minutes 186
Evaluation of Object Sightings for All Years by Duration of Sighting for Months
of Year, Over Thirty Minutes 187
Evaluation of Object Sightings for All Years by Duration of Sighting for Months
of Year, Duration Not Stated • 188
Evaluation of All Sightings for All Years by Shape of Object, Elliptical 189
Evaluation of All Sightings for All Years by Shape of Object, Rocket and Aircraft 189
Evaluation of All Sightings for All Years by Shape of Object, Meteor or Comet 190
Evaluation of All Sightings for All Years by Shape of Object, Lenticular, Conical,
or Teardrop 190
Evaluation of All Sightings for All Years by Shape of Object, Flame 191
Evaluation of All Sightings for All Years by Shape of Object, Other Shapes 191
Evaluation of All Sightings for All Years by Shape of Object, Shape Not Stated 192
101
I

Cases discussed

About this file

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.