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.

Open the PDF at page 251 Original source ↗

“R.G.”3 pages

  • 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…
Evaluation
O-Ballooa
Mstmoarical
?-Airoafl
3-UrttPherma.
4-Binh
5-Clouds, Dust, etc
6-lnajffic kilo.
7-Psycholojital
S-Unknon
Wither
Total
7~JDAL£ 42/9 ^V#/.l/Jrs/?/V 0f 0/4J&CT 5-/6/Jr//V6S A-/J/P /In Vests (?y
Number
Certain
/f3
2$¥
2-9
/0
its
395
14
/¥62.
Doubtful
(9f

/9
9
¥•3
19&
9/
?O#
Pet Cent
Certain
/2-S
ML
0/
Jj~
j t .
7/.1
Ooubtfu
A£^
f-7
"af
0-3
00
o-¥
\-6UL
£f./
Total
/£7
1/f
a?
/0.6
2/
/ $ •
/00.
//yy/rso Srsr^s
Nwbei
Certain
2S7
*M27
-l£L
_j^
206
Jl
At
m
Doubtful
/ £ /
/n/gt
K
^
0
Total
Y/?
</33
f
fO£
i/t
35?
$3
/?/i
Percent
Certain
£6
££_
liJ-
J£
&£.
J2J-
/0 7
/.'$
fg-7
J:S
\ -
7/.S
Doubtful
6.3
?•*
09
0 ^
0.3
0,0
0-4
#0
0.?
Iff
Total
2/.f
22. £•
2.3
09
of
/0-7
2.Z
/17
¥.3
/CO,
CAM
Nmber
M a n
^ £
a
£
0
/p
0
/
J4L
11.
Doubtful
f
0
/
0
<?
/
/o
Total
/¥
S~
0
/
0
¥
/
/¥
ft
0.A. PerCeat
Certain
62
/ / /
/Of
0.0
0.0
00
ILL
29.2
¥2.
7f.Z
Doubthi
0.0
0-0
_£L2.
at?
?•/
20.1
Total
/ / «
7?,2.
'0.4
0-0
' • /
0.0
f-3
?•/
6.3
/00.
Nnber
Certain
7
/
0
0
2,
&
/ /
J
*9
Doibtfal
/
0
0
0
0
0
0
0
0
0
/
Total
S
s
/
0
2.
i?
/*
J
30
f ParCeat
Certai*
67
/i-7
/O.O
a*00
67
0.0
/0.P
fK-7
OoAtM
JT-/
00
0,0
00
J2£_
00
0.0
0,0
S3
Total
/00
/i-7
/Of
3.3
0-0
0-0
(•7
ffj
/oa
/00.
Evaluation
O-Mloon
1-Astm*ical
2-Aitoaft
J-Ujht Ptwioo.
4-Binh
5-Clouds, Dint etc
6-lnaiftic Wo.
7-Psycnoki|ical
8-UnknoMi
Mfter
Total
M£X/C0
Number
Certain
/
/
0
0
0
0
0
f
Doubthi
2/
/
0
0
<7
Total
/
J
/
/
0
/£,
Percent
Certain
$.s
J2JL
11.
0:0
/&7
0.0
0.0
Doubtfu
00
4-7
0.0
Otp
0.0
00
0.0
0-0
00
2ST0
Total
fa2£0
!?3
0.(0
a/?
'4-7
0,0
S3.3
0-0
/O0.
///?tv^/y
Number
Certain
J
3
/
#\
0
-£L
-&
£•
JL
Doubtful
/
/
&
/
0
yy_
0
/*-
Total
,/
J
0
£
2,
PerCent
Certaia
0.7
/0.7
S.i
0.(0
0.0
0.0
7/
0./)
/7.9
7./
DoobtM
2$' £•
t/
00
00
00
no
0.0
(0 0
Total
/</J
3f.3
/O.7
0,0
0,0
Si
7,/
0-0
'7?
7/
fffl.
Number
:ertain Doubtful Total
PeiCait
Certaia OwttM Total
ItaahK
Certaia D M M M Total
. Per Cat
Certain DabtW Total
: \
244

Cited by

Cases discussed

About this file

Report, cited by the archive. The PDF is mirrored here; the original link is above. 309 pages are in the text index: search them above, or from the library's search.