Documents / Report

Project Blue Book Special Report (second copy)

Internet Archive · 309 pages · text from the file's own layer

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.

  • p. 245 …P _/) - 7 P P 3 ?% ToUl •6 'r? g_ 0 70 '0 5L3fy Per Cent . Certain…
  • p. 256 …c Doubtful 2, g- 0 0 ?• /g >//r/ ?G//> Total f // / /0 0 & ? 6/ /P6 S…
  • p. 258 …9 0 $ / 'i a 2£ -L 43 r/?g(. Certain / / f2> 2. I? ?; • 2 V 1…
•
' -
0-
••/N C/Jf?
^Jrt PLANE
*1li RLDS.
s-
6-
7-
8-
»-OTKER
WOT STATE h
Tom
7%£/.fi /}/72s /OtrfT/O/i/ rtf /?/?£££ &/?£.
Per Cent
Const
(.9
ULA
//./
If
i.f
Variable
i.A
0.0
Ad
OA
fiO
O-d
Total
Us
tf.o
//./
if
3.9
i7l
w.
Number
Const
0
T
5
y
0
Variable
0
a
0
0
0
Total
a
t
Percent
Const
/a.b
A.b
/a.D
a.b
O.A
fa. 3
100.6
Variable
Ad
•6,0
o.t
to
Total
o,t>
/d.O
o,a
10.
Ji/A/£
Number
Const
/
/
I
0
0
3
1
Variable
0
0
0
0
0
0
0
Total
/
/
1
0
7
Percent
Const
143
m
Mi
6.(y
O.b
V2.9
dO.t
Variable
fi.6
D-b
0M
o.t>
.6.6
At
6,0
Total
MS
//J
&I,
0,0
6.0
lid-
Jo"-V
Number
Const
H
Z
2
1
i
J9_
Variable
/
o
o
0
Q
T
Total
?
y
i
t.
?y
Per Cent
Const
/u
Al
-U
1A
2S.0
79.Z
Variable
MS
0,6
o.b
o,»
d,D
263
Total
IS
13
ii
-tit
Number
Const'
/
16
_JL
1
_£
&
Variable
0
o
0
0
o0
0
Total
1
10
3
Z
3
i
25
Per Cent
Const
</.b
W.b
/J.6
lo
11.0
ML
106.0
Variable
0.6
0,0
0,0
0,0
QD
0/)
0^3
Total
w.6
i]Jb
U
no
11.0
164-
0-
3-//Y P/.*rtE
«-/rt RLD&.
5--
7-
8-
»• OTH- E R.
fior STOTED
Tom
Ssfir£M4£e.
NumtKt
Const
2
3
1
I
X
13
Variable
0
o
0
0
0
0
0
Total
H
1
1
1
,?.
'13
Percent
Const
•».?
KM
£A
Jl
IBM
ioao
Variable
M
0-0
ao
<\n
n.c
o.o
Total
7-7
7.7
Number
Const
1
5
l
1
1
Variable
0
0
0
0
0
0
0
Total
1
5
1
1
1
1
10
Percent
Cortt
lb.b
Sb.b
16.1
ld.O
JM
Od-t
Variable
4.0
Oi)
00
0,0
.
Of)
0,0
0.0
Total
10-0
10.6
10-0
16-0
160-
Number
Const
5
_1
_ i
O
5
Variable
0
0
0
0
0
0
0
Total
0
5
2
5
0
6
PerCent
Const
2J.7
ii.l
Variable
0.0
0.0
0.0
o.p
0-0
0-0
Total
QO
7J-7
w'/
OS)
Ob.
Number
Const
_ 4
3
1
0
11
Variable
s
0
0
0
0
0
3
Total
9
i
3
X
Q
)|
PerCent
Const
HI
9.7
IS
O.0
m
Variable
0.0
o.o0,0
0.0
0-0
9.7
Total
no
11
Li
0.0
WO.
217

Cases discussed

About this file

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.