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.
“Nature”10 pages
- p. 3 TABLE OF CONTENTS
Page
SUMMARY • vii
1
INTRODUCTION 1
ORIGIN AND NATURE OF DATA 3
REDUCTION…
- p. 9 …This would include such items as natural phenomena that are
not yet completely understood, ps^cjioliigical…
- p. 11 …ORIGIN AND NATURE OF DATA
Reports of sightings were received by the U. S. Air Force…
- p. 14 …Since it was impracticable to transfer detailed data of an exact
nature from the questionnaire to…
- p. 19 …as misinterpre-
tatiorxs of common objects or natural phenomena. Accordingly, categories
for objects most frequently present…
- p. 20 …A separate category for the uncommon natural
phenomena associated with light reflections or refractions, such as…
- p. 21 …of the
common objects or as a natural phenomenon, and his opinion was that the
sighting…
- p. 76 …aircraft, balloons, or other known objects or natural phenomena.
The UNKNOWNS might still be unidentified KNOWNS…
- p. 99 …a
familiar object or to a known natural phenomenon.
(4) The model should be derived from…
- p. 101 …to this problem.--The reason for the nature of this publicity was
clearly brought out during…
KlCL-
•;.-..v »'• v
STUDY NO. IO2-EL-55/2-79
ANALYSIS OF REPORTS OF
UNIDENTIFIED AERIAL OBJECTS
PROJECT NO. 10073
5 MAY 1955
5 > c 2
o c/> c/1 • "
>n
CO 3 -
O < *
A)
0
o
2
0
Copy No.
CD
Co -•
(
\,"
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.