Documents / Analysis
Project Blue Book Special Report No. 14: Analysis of Reports of Unidentified Aerial Objects
United States Air Force, Air Technical Intelligence Center · 1955-05-05 · 309 pages · text from the file's own layer
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.
“metallic”11 pages
- p. 35 …20
10
c
a>
O
V.
a.
Metallic
17.7%
Not
stated
12.3%
Orange
10…
- p. 42 …Per Cent
10 15 20 25 30
Metallic
Not stated
Orange
Red
*f
FIGURE 18 COMPARISON…
- p. 70 …KNQWNS (K)
Number of
UNKNOWNS (n)
White
Metallic
Not stated
Orange
Red
Yellow
Green
Blue
Other…
- p. 78 …K)
Number of
UNKNOWNS (n) K
White
Metallic
Not stated
Orange
Red
Yellow
Green
Blue
Other…
- p. 86 …It was shiny and metallic in
construction, about 6 to 8 feet long and 2 feet…
- p. 94 …Did glasses have filter?) It was of
metallic construction and was seen with good enough resolution…
- p. 110 …Evaluation of All Sightings for All Years by Colors Reported for Duration
of Sighting, Metallic Objects…
- p. 111 …Evaluation of Unit Sightings for All Years by Colors Reported for Duration
of Sighting, Metallic Objects…
- p. 291 …4
5
6
7
8
9
Variable
Metallic
Light-glow-luminous
Red
Orange
Yellow
Green
Blue…
- p. 301 …58 OBJECT COLOR
X Variable
Y
0 Metallic
1 Light, glow, luminous
2 Red
3 Orange…
- p. 302 …X Light glow
Y
0 White
1 Metallic
2 Red
3 Orange
k Yellow
5 Green…
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STUDY NO. IO2-EL-55/2-79
ANALYSIS OF REPORTS OF
UNIDENTIFIED AERIAL OBJECTS
PROJECT NO. 10073
5 MAY 1955
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About this file
Analysis, from the classic collection. 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.