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Project Blue Book Special Report (second copy)

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This is Project Blue Book Special Report No. 14, "Analysis of Reports of Unidentified Aerial Objects," Project No. 10073, dated 5 May 1955. The study reduced about 4,000 sighting reports received by the U.S. Air Force between June 1947 and December 1952 to IBM punched cards and analyzed them statistically, including chi square tests comparing knowns with unknowns. It concludes that the reports very probably do not represent technological developments beyond present scientific knowledge, and it notes that no case produced physical evidence.

Open the PDF at page 117 Original source ↗

“Midwest”5 pages

  • p. 4 …in the Strategic Areas of the Central Midwest Region ' 50 Figure 35 Comparison of Evaluation of…
  • p. 58 O Dayton 144 object sighting! " 7 Balance of Central Midwest Region 164 object sightings FIGURE 34…
  • p. 60 CJ1 ro o San Antonio 36 object sightings Balance of South Midwest Region FIGURE 36 COMPARISON…
  • p. 112 …Evaluation of All Sightings in the Strategic A r e a s of the Central Midwest…
  • p. 113 …Evaluation of Object Sightings in the Strategic Areas of the Central Midwest Region 252 Table A237…
Evaluation
O-Balloon
1-Astronomcal
2-Aircraft
3-Lisht Pherm.
•-Birth
5-Clowis, Dust, etc
6-lnsuffic kilo. ,
7-PsYcholopal
8-UnkMM
M i n e r
Total
Nunbff
Certain Doubtfu Total
y
PerCent
Certain
7
Doublfu Tobl
Nunter
Certain Doubtful Total
-
,
V
P a Cat
Certain
J
y
DoublU
\
Total
Number
Certain Doubtful Total
A
Percent
Certain
/
A
* V
y
Jtouttful Total
Nuabrr
Certain Doubtful
\
Total
V
PeiCml
Certain
y
DtaiMlul
tj^>
Total
Evaluation
0-Balloon
1-Astnmnical
2-Aircnft
3-Light Phenom.
«-Binh
5-Clowts, Dust, etc.
6-lnsuffic kito.
7-Psycholo|ical
S-Unknoon ;
M t h e t
Total
Number
Certain Doubtful
s
Total
\ )
PerCent
Certain Doubtful Total
Numbn
Certain
/
0
o
.JL
1
1
U
Doubtful
0
1
Q
0
/?
0
0
0
O
0
1
Total
/
/
0
0
o
3
1
U
I
/,?
Percent
Certain
*7
p.e>
p.o
7.7
7.7
12.3
Doubtful
a?
7T
fit
at>
to
0,1
oti
4P
4t
0.0
7.7
Total
77
7-1
JS:o
&,e
6-e
Q.a
71A
7,7
r.?
/0O,
J~L>J.f
Nuc*M
:ertain
6
5
0
1
o
o
f
o
IZ
JtL
Doubtful
D
I
",£
0
P
0
0
0
D
7
Total
7-
(>
O
r.2.
13-
16
S!T
PerCent
Certain
//r
9.1
0.0
i *
0.0
ao
/«.S
0.0
XI f
29.1
87,3
Doubtful
0,0
?.(,
0,0
0$
7,t
0,0
9-0
H,1
Total
/(?if
/,f
ao
(?.O
Mr
7-11
160,
A usurr
NrabH
Certan
t>
i
0
0
0
p
0
7
0
IT
Owtitfu
0
1
a
Q
0
0
0
a
0
1 e.
/
Total
P
7
(?

t>,e
p.o
00
w
I?S
0-f
Aff
00
/OP.
Evaluation
0-Balloon
1-Astfononical
2-AircraH
M i g h t Phenoa.
4-Binb
5-Clouds, Dust, etc
6-lnsuffic Info.
7-Psycholocieal
8-Unknom
M t h e t
Total
SE-p7-jrMg£r/<>
Nmber
Certain
0
/
o
0
0
0
1
(
3
0
/
Doubtfu
0
o
0
0
0
0
0
0
10
o
0
Total
0
t
0
0
0
0
1
1
0
PaCeat
Certain
0.0
fC7
M>
P.fi
0.6
(LI
if-7
SB.O
0./)
(00,0
Doubtfu
(?,0
OO
0-0
(?,6
M
?,
P
0
0
0
/
2.
O
12.
Doubtful

00
0.0
0.0
fl.Q
6.0
Doubtful
P.0
T?J
O,0
0,0
0,0
04
0-0
00
0.0
0,0
Total
p.o
tfifi
0,0
313
o.e
0.0
0,0
o.o
0.0
0,0
106.
Numbet
Certain
o

6.0
0.0
0.0
at
0.6
o.t
o.o
ao
/OOJ
Doubtful
A0
0.0
0.0
0O
0-0
IP-O
0-0
ao
Tom
op
mo
t,o
Ob
60
00
Q6
0.0
110

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Report, cited by the archive. 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.