Documents / FOIA release

(Analysis of Reports of Unidentified Aerial Objects)

Central Intelligence Agency · 2005-07-12 · 312 pages · text by OCR

This CIA-released copy of Project Blue Book Special Report No. 14 is dated 5 May 1955 and comes from the Air Technical Intelligence Center at Wright-Patterson Air Force Base. It is a statistical analysis of about 4,000 unidentified aerial object reports from 1947 through 1952, coded onto IBM punched cards with the help of a panel of scientists. The report concludes that such objects were highly unlikely to be technological developments beyond present-day scientific knowledge. It also found no valid evidence of physical matter.

Open the PDF at page 119 Original source ↗

“Jet Propulsion Laboratory”1 page

  • p. 96 …approach the speed of a jet before it disappeared. No propulsion was apparent. Time of observation…
# Approved For Release 2005/07/20 : CIA-RDP81R00560R000100060001-5

Evaluation	JANUARY	FEBRUARY	MARCH	APRIL
Number	Per Cent	Number	Per Cent	Number	Per Cent	Number	Per Cent
Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total
0-Balloon

	MAY	JUNE	JULY	AUGUST
Evaluation	Number	Per Cent	Number	Per Cent	Number	Per Cent	Number	Per Cent
Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total
0-Balloon 1	0	1	7.7	0.0	7.7	6	0	6	10.9	0.0	10.9	0	0	0	0.0	0.0	0.0
1-Astronomical 0	1	1	0.0	7.7	7.7	5	3	8	9.1	5.5	14.6	6	1	7	37.5	6.3	43.8
2-Aircraft 2	0	2	15.4	0.0	15.0	0	2	2	0.0	3.6	3.6	0	0	0	0.0	0.0	0.0
3-Light Phenom. 0	0	0	0.0	0.0	0.0	1	0	1	1.8	0.0	1.8	0	0	0	0.0	0.0	0.0
4-Birds 0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
5-Clouds, Dust, etc. 0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
6-Insuffic. Info. 3	0	3	23.1	0.0	23.1	8	0	8	14.5	0.0	14.5	2	0	2	12.5	0.0	12.5
7-Psychological 1	0	1	7.7	0.0	7.7	0	2	2	0.0	3.6	3.6	0	0	0	0.0	0.0	0.0
8-Unknown 4	0	4	30.8	0.0	30.8	12	0	12	21.6	0.0	21.8	7	0	7	113.8	0.0	43.8
9-Other 1	0	1	7.7	0.0	7.7	16	0	16	29.1	0.0	29.1	0	0	0	0.0	0.0	0.0
 SEPTEMBER	OCTOBER	NOVEMBER	DECEMBER
Evaluation	Number	Per Cent	Number	Per Cent	Number	Per Cent	Number	Per Cent
Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total
0-Balloon	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
1-Astronomical	1	0	1	16.7	0.0	16.7	14	2	16	73.7	10.5	84.2	1	1	2	33.3	33.3	66.6	5	0	5	100.0	0.0	100.0
2-Aircraft	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
3-Light Phenom.	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	1	0	1	33.3	0.0	33.3	0	0	0	0.0	0.0	0.0
4-Birds	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
5-Clouds, Dust, etc.	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
6-Insuffic. Info.	1	0	1	16.7	0.0	16.7	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
7-Psychological	1	0	1	16.7	0.0	16.7	1	0	1	5.3	0.0	5.3	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
8-Unknown	3	0	3	50.0	0.0	50.0	2	0	2	10.5	0.0	10.5	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
9-Other	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0
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FOIA release, from the cia-readingroom collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 312 pages are in the text index: search them above, or from the library's search.