Documents / Analysis
Special Report No. 14 was issued by the U.S. Air Force's Air Technical Intelligence Center on 5 May 1955. It is a statistical study of about 4,000 reports of unidentified aerial objects from June 1947 to December 1952. The reports were reduced to IBM punched cards and analyzed with methods including chi square tests. The report concludes that the reports it examined are very unlikely to represent technology beyond present scientific knowledge, and it notes that no case produced valid physical evidence.
“R.G.”3 pages
Evaluation
0- Balloon
1-Astrommical
2-Aircraft
3-lighl Phenom.
4-Bnds
S-Clouds, Oust, etc
6-lnsuffic Info.
7-Psycnoloiiol
8-UnknoMi
9-Other
Total
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Number
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3
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it
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Evaluation
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1-Astronomical
2-Aircraft
3-Ligtit Phenom.
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5-Clouds, Dust etc
6-lnsuffic. Info.
7-Psychological
B-Unknoon
Mtliei
Total
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Evaluation
0- Balloon
1-Astronomical
2-Aucraft
3-Li{ht Phenom.
4-Birds
S-Clouds, Dust, etc
G-lnsuttic. Inh.
7-PsycholOEial
t-Unknoon
9-Ottier
Total
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Numbei
Certain
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7
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Total
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p
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7.
Total
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7
7
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P
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/
Per Cent
Certain
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MO
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3.3
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u1.2
00
U3
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0-0
0,0
3.3
0,0
00
0.0
0.0
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•0.0
33
Total
'33
3.3
0.0
0.0
0.0
S3
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33
700
7?0£/9770/U Pj0f ST/)T£P
Numbei
Certain
~A7
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7
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P
07
/
P
0
P
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P
P
P
/
Total
0
/
7
70
0-
0-
7
i
^ -
Per Cent
CetUin
_ ^ 2 .
4f
00
0.0
/).O
00
s/.s
9./
V0?
9./
Doubtful
<?-0
00
0-0
ao
0-0
00
0.0
0.0
0.0
Total
0-0
fro
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Y0-9
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233 Analysis, from the classic collection. The PDF is mirrored here; the original link is above. 309 pages are in the text index: search them above, or from the library's search.