Documents / Analysis

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

United States Air Force, Air Technical Intelligence Center · 1955-05-05 · 309 pages · text from the file's own layer

Special Report No. 14 was issued by the U.S. Air Force's Air Technical Intelligence Center on 5 May 1955. It is a statistical study of about 4,000 reports of unidentified aerial objects from June 1947 to December 1952. The reports were reduced to IBM punched cards and analyzed with methods including chi square tests. The report concludes that the reports it examined are very unlikely to represent technology beyond present scientific knowledge, and it notes that no case produced valid physical evidence.

Open the PDF at page 67 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 South Midwest…
  • p. 113 …Evaluation of Object Sightings in the Strategic Areas of the Central Midwest Region 252 Table A237…
jtt i,
300
275
250
S 22 5
JC
0)
u
o
o
200
175
150
125
100
75
50
25
.Midnight :
Noon
•
MM ODjecT signnngs
Unknown object sightings v
— 1 _ / • r—^1 j /
^F"l 1 1 h i i \ i i i • • , i | i i
\ i
i
i
1
!.
i
Midnight
0 0300 0600 0900 1200 1500 1800 2100 2400
Local Sun'Time
FIGURE 41 FREQUENCY OF OBJECT SIGHTINGS BY LOCAL SUN TIME, INTERVALS OF ONE HOUR
A-7537

Cited by

Cases discussed

About this file

Analysis, from the classic collection. 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.