Project Blue Book Special Report No. 14: Analysis of Reports of Unidentified Aerial Objects

Evaluation
0. Balloon
I-Astrommical
2-Aucraft
J-Liffit Phenom.
4-Birds
S-Clouds, Dust, etc
S-lnsuflic Info.
7-Psvctolo|ical
t-UnknoMi
9-Othw
Total
d£UL
j f
f f
- /r-J
Number
Certain
0
3
0
O
a
j
ff
0
6
/S
Doubtful
/
s
o
o
er Cent
Doubtful
/ / /
//,/
0.O
0.0
0.C
0.0
0.0.
0.0
O.O
33.3
Total
a.o
0.0
O.P
//./
O.o
/(•/
0-C
100.
/A/a.
MM ~cr a A/6
7/-3o SfrosSAs
Number
)ertain
tP
s
a
•/
a
Doubtful
/
/
4
a
1
o
o
o
4
/1
Total
/
f
0
ff
1
7
¥
h
F
Certain
0,0
44
lib
t.Q
f>,0
O,o
0,0
72 i'
4$
6S.b
er Cent
Doubtltl
Jj
3.1
0.0
6,0
0.6
0.0
0.0
/»U'
H4
ToUl
/2S
28,/
0.0
3/
2/9

"?
P
¥
' Per Cent
Certain
111.
/3J
I.I
O.O
u« So M,*'.™,
Number
Certain
3
3
/
£>
a
_£_
//
33
Doubtful
-a
/
•0
o
a
a
o

0.0
IU
Total
?•.a
4/A
e»
4-1
0.6
O.o
0.Q
JS.o
l i .
/fo.o
Doubtful
00
0.J
a.o
0.O
O o
o.o
£.«
o. o
0,0
fi.O
Total
00
2s:o
0,0
0.0
0.0
S
Number
Doubtful
0
4
I
a
o
o
o
0
0
/
L
f? Si*
Total
&
/
/?
0
/£
0.
-C*A/
/ S#(os{i>s " S Afr^i/TV*
Number
Certain
J
0
_±_A.
0
4-
/ 2
3
24
Doubtful
•?
O
O
O
0
0
0
Total
g
3
/O
2,
0
0
s
3
4f
PerCent
Certain
£.7
£>o
IS.
ts4.0
0.0
t.4
L?
m
Doubtful
41

Total
if-a
17
21?
**
00
00
K?
hi.
« /
i-7
/oo.
6-JS0 Sf/sSure*
Number
Certain
/
4
_&_
i
0
-±a
£ L
Doubtful
3.
1
t
O
a
0
O
0
/
J "
Total
f
2,
2,
0
0
1
a
9
/
29
Per Cent
Certain
n.q
3.(.
HA
0,0
0.0
S.C
O.a
I I I
0.0
121
Doubtful
11
s.o
0.0
0.0
Total
2S-.0
f,l
7.2-
2/.
/
e>
0
ToUl
J
7
/
/
0
0
0
1
/
/
tr
Per Cent
Certain
Jo.o
0.0
Jj.
0.0
0.0
0.0
0.0
Li
i.l
rDoubt(ul
fi.O
0
0.0
0.0
0.0
t.o
4,7
0,0
11/
Total
20.0
4/,7
L7
t-7
0,p
0 Uit/Q Tit*/ /•» r Sra T!«>
Numbei
Certain
s1
{
/
0
a
_Z_
_ ^
/
3~r
Doubtful
/
JT
J'
0
a
a
0
a
4
Total
/ &
//
/
0
<?
7
/
f
So
Per Cent
Certain
4.0
Mo
/Zo
2.0
0*
0.0
ZO
/2.0
2.0
7fio
Doubtful
J.o
/O.O
/O.O
0.0
0.0
00
0.6
fi.Q
to
3oo
Total
#,0
Me
210
fi.0
0.0
0.0
/«/?
a.o
/0.D
/00.
229