Documents / FOIA release

(Analysis of Reports of Unidentified Aerial Objects)

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

  • p. 149 …1 0.6 4 0.2 Glowing Gray 8 0.3 0 0.0 0 0…
  • p. 150 …0.0 VIDLET OR GLOWING VIOLET GLOWING GRAY Evaluation Number Per Cent Number Per Cent Number…
  • p. 151 …0.0 VIOLET OR GLOWING VIOLET GLOWING GRAY Evaluation Number Per Cent Number Per Cent Number…
  • p. 152 …0.0 VIOLET OR GLOWING VIOLET GLOWING GRAY Evaluation Number Per Cent Number Per Cent Number…

Read from the scan by GLM-OCR; expect the odd misread word.

# Approved For Release 2005/07/20 : CIA-RDP81R00560R000100060001-5

Evaluation	ALL YEARS	1947	1948	1949
Number	Per Cent	Number	Per Cent	Number	Per Cent	Number
Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total	Certain	Doubtful	Total
0-Balloon	228	147	375	9.5	6.1	15.6	5	0	5	7.0	0.0	7.0	15	19	34	9.0	11.4	20.4	14	5	17	4.3	1.5	5.8
1-Astronomical	436	311	747	18.1	12.9	31.0	29	6	35	40.8	8.4	49.2	34	34	68	20.3	20.3	40.6	64	128	192	19.7	39.4	59.1
2-Aircraft	227	197	424	9.4	8.2	17.6	0	2	2	0.0	2.8	2.8	9	5	14	5.4	3.0	8.4	28	12	40	8.6	3.7	12.3
3-Light Phenom.	19	11	30	0.8	0.5	1.3	2	0	2	2.8	0.0	2.8	1	1	2	0.6	0.6	1.2	0	0	0	0.0	0.0	0.0
4-Birds	1	1	2	0.1	0.1	0.2	0	0	0	0.0	0.0	0.0	1	1	2	0.6	0.6	1.2	0	0	0	0.0	0.0	0.0
5-Clouds, Dust, etc.	9	12	21	0.4	0.5	0.9	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.	215	0	215	8.9	0.0	8.9	5	0	5	7.0	0.0	7.0	16	0	16	9.6	0.0	9.6	22	0	22	6.8	0.0	6.8
7-Psychological	34	0	34	1.4	0.0	1.4	2	0	2	2.8	0.0	2.8	0	0	0	0.0	0.0	0.0	1	0	1	0.3	0.0	0.3
8-Unknown	463	0	463	19.2	0.0	19.2	12	0	12	16.9	0.0	16.9	23	0	23	13.8	0.0	138	40	0	40	12.3	0.0	12.3
9-Other	99	0	99	4.1	0.0	4.1	8	0	8	11.3	0.0	11.3	8	0	8	4.8	0.0	4.8	10	0	10	3.1	0.0	3.1
 1950	1951	1952
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	30	7	37	11.8	2.8	14.6	10	4	14	7.4	2.9	10.3	154	112	266	10.6	7.7	183
1-Astronomical	46	25	71	18.1	9.8	27.9	23	14	37	16.9	10.3	27.2	240	104	344	16.5	7.1	23.6
2-Aircraft	22	13	35	8.6	5.1	13.7	15	7	22	11.0	5.1	16.1	153	158	311	10.5	10.8	21.3
3-Light Phenom.	0	0	0	0.0	0.0	0.0	2	1	3	1.5	0.7	2.2	14	9	23	1.0	0.6	1.6
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	9	12	21	0.6	0.8	14
6-Insuffic. Info.	44	0	44	17.3	0.0	17.3	10	0	10	7.4	0.0	7.4	118	0	118	8.1	0.0	8.1
7-Psychological	4	0	4	1.6	0.0	1.6	2	0	2	1.5	0.0	1.5	25	0	25	1.7	0.0	1.7
8-Unknown	53	0	53	20.8	0.0	20.8	43	0	43	31.6	0.0	31.6	292	0	292	20.0	0.0	200
9-Other	10	0	10	3.9	0.0	3.9	5	0	5	3.7	0.0	3.7	58	0	58	4.0	0.0	40
 ALL YEARS	1947	1948	1949
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	22	21	43	8.0	7.6	15.6	0	0	0	0.0	0.0	0.0	1	1	2	6.7	6.7	13.4	2	0	2	10.0	0.0	10.0
1-Astronomical	12	13	25	4.4	4.7	9.1	2	2	4	22.2	22.2	444	2	1	3	13.3	6.7	20.0	6	4	10	30.0	20.0	50.0
2-Aircraft	53	43	96	19.3	15.6	349	1	0	1	11.1	0.0	11.1	3	0	3	20.0	0.0	20.0	2	4	6	10.0	20.0	30.0
3-Light Phenom.	4	2	6	1.4	0.7	2.1	0	0	0	0.0	0.0	0.0	1	0	1	6.7	0.0	6.7	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.	2	1	3	0.7	0.4	1.1	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.	19	0	19	6.9	0.0	6.9	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	4	0	4	1.4	0.0	1.4	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
8-Unknown	64	0	64	23.3	0.0	23.3	2	0	2	22.2	0.0	22.2	2	0	2	13.3	0.0	13.3	2	0	2	10.0	0.0	10.0
9-Other	15	0	15	5.4	0.0	5.4	2	0	2	22.2	0.0	22.2	4	0	4	26.7	0.0	26.7	0	0	0	0.0	0.0	0.0
 1950	1951	1952
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	5.3	0.0	5.3	0	0	0	0.0	0.0	0.0	18	20	38	8.7	9.7	18.4
1-Astronomical	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	2	6	8	1.0	2.9	3.9
2-Aircraft	6	1	7	31.6	5.3	36.9	0	0	0	0.0	0.0	0.0	41	38	79	19.8	18.4	38.2
3-Light Phenom.	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	3	2	5	1.4	1.0	2.4
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	2	1	3	1.0	0.5	1.5
6-Insuffic. Info.	1	0	1	5.3	0.0	5.3	0	0	0	0.0	0.0	0.0	18	0	18	8.7	0.0	8.7
7-Psychological	0	0	0	0.0	0.0	0.0	0	0	0	0.0	0.0	0.0	4	0	4	1.9	0.0	1.9
8-Unknown	9	0	9	47.4	0.0	47.4	4	0	4	80.0	0.0	800	45	0	45	21.7	0.0	21.7
9-Other	1	0	1	5.3	0.0	5.3	1	0	1	20.0	0.0	20.0	7	0	7	3.4	0.0	3.4
	</td

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FOIA release, from the cia-readingroom collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 312 pages are in the text index: search them above, or from the library's search.