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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 142 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…
#
=• J or 'r/Af & s s &// / ft .
1
Evaluation
0- Balloon
l-Aslronoaicajl
2-Auciaft
3-Lil*t Phenon.
«-Biids
S-Clouds, Dust, etc
t-lnsuflic Mo.
7-Pirctnkmal
S-Unknow
Total
£*t£L i cfi/T
Numbef
Certain
H-
3
2
0
0
0
H
0
12
1
26
Doubtful
0
r
0
0
0
0
0
0
0
G
ToUl
R
3
Q
0
0
H
0
ii
1
32
4S*
F
Certain
12.5
J.H
6-2
0.0
0.0
Q.O
0.0
J7-J
,7 /
B/. 2
/
erCent
Doubtful
0 0
IS 6
3-/
Q.O
0,0
0-0
0 0
o.o
0 0
JLJL
19.8
ToUl
I2.S
J2AO.
1 -3
0 0
0.0
0.0
' M
0.0
37 S
2.1
IQO.
Ceitam
3
X-
0
1
0
9
2L
Ninbei
Doubtful
0
1+
-JL.
o
Q
0
o
o
o
I
f
Total
3
/ 3
' 0
0
p
/
0
1
2
33
Per Cent
Certain
7.7
2KL
111
o.o
JLO
2J.
Doubtful
0.0
/ 0 . S
I»-S
a.-0
0 0
o.o
1-L
23-7
Total
7.1
2±.2
2C 3
0 0
0.0
Q.Q
1-1
o.Q
5-2
100.
OtPc/xrFvt
Number
Certain
r
0
0
JL.
V-
0
LJL_
7H-
r
Doubltul
/
H
0
0
0
o
o
o
o
1
6
-sv>k)|ical
B-lMunan
Wttiw
1 Total
Ex CEL L e/vf
Certain
/
_2
3
0
0
0
• n
0
Lf
0
HP
NumlKi
Doubtful
0
2
I
0
0
0
0
0
0
0
3
ToUl
1
if
9
0
Q
0
Q
0
n
Per Cent
Certain
71
i l l
2U
o.o
0.0
O"
0.0
o.o
10.0
o.o
7*7
Doubtful
0.0
/ ! • *
7 7
0 . 0
0.0
0 0
Q-°
0.0
0>°
0-9
73.1
ToUl
7.7
Jo.8
10.8
O-O
o.o
0.0
0.0
o.O
30 8
Q.O
I0B-
Certain
H-
10
i0
0
0
0
O
b
o
20
Number
Ooubtful
/
0
0
1
o
o
o
o
o
c
Total
5
m
c
0
i
0
0
0
C
O
n
Pet Cent
Certain
31.2
/?.?
JLl
JLO
00
JLJL
00
/?.?
0.0
•m
Doubtful
3.;
12-5
0.0
O.o
o.o
0.0
OH
0.0
0.0
lit
Total
437
0.0
3-/
0.0
0.0
0.0
111
00
us.
Nuntet
:ertain
2
1
•o
1
0
o
_£_
/
1
3 2
Doubtful
2
3
3
1
o
o
o
1
0
o
10
ToUl
H
5
7
0
0
2
1
/5
2
PeiCent
Certain
4.8
2-f
O.O
o.o
I1.D
J2JL
35.7
Hi
7 £.7
Doubtful
9.8
7-1
7.1
3. V
Q.O
0.0
o.o
0-Q
O.O
23.2
Total
u
fs
11.9
JtJL
0.0
o.O
U.O
31.7
100.
Numbei
Certain
/
3
0~
0
o
6
0
8
S j
27
Doubtful
0
s
2
o
0
0
0
0
0
0
7
Total
/
8
c
o
0
o
o
5
Certain
JLJL
0-0
0.0
JJuA
0.0
23-5
'4.7
11.t
' e i Cent
Doubtful
0.0
lf-7
5-9
Q.Q
o.o
-JLJL
0-0
0.0
0.0
p. 0
20.4
Total
3-9
?:•*
/ 7 7
0.0
0.0
0.0
ll.t
0-1
mi
/so.
i
Evaluation
0-Balloon
1-Astrenomcal
?-Anciatt
3-Light Phenon.
*-Blr*s
S-Clouds, Dust, etc
S-lnsuffic. Info.
7-Psycholopcal
a-Unknow
Wttiei
Total
-r ,
E XC£-CC£VT
Certain
10
1 4
1 &
2
JL~
0
0
7
UL
Number
Doubtfu
13
0
0
0
0
0
0
0
ToUl
11
70
71
0
0
- 3
Q
JfJL
7
120
PeiCent
Certain
2.3
iLl
JUL
-Ul
0.0
0.0
2 $
0.0
35.0
5.$
78.3
Doubtfu
-2
QO
111
Doubtful
7.7
1 ty
6-f
O.o
O.if
0.0
O.Q
o.?
0.0
3.0
13.1
Total
IS.8
1 I
1 3
00
11.t
3-4
iu-2
3.0
100.
4-
135

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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.