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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.

8. IF you saw the object at NIGHT, TWILIGHT, or DAWN, what did you notice concerning the STARS and MOON?
8.1 STARS (Circle One): 8.2 MOON (Circle One): ,
a. None a. Bright moonlight
b. Dull moonlight
c. No moonlight — pitch dark
d. Don't remember
b. A few
c. Many
d. Don't remember
9. Was the object brighter than the background of the sky?
(Circle One): a. Yes b. No c. Don't remember
10. IF it was BRIGHTER THAN the sky background, was the brightness like that of an automobile headlight?:
(Circle One) a. A mile or more away (a distant car)?
b. Several blocks away?
c. A block away?
d. Several yards away?
e. Other
n
11. Did the object:
a. Appear to stand still at any time?
b. Suddenly speed up and rush away at any time?
c. Break up into parts or explode?
d. Give off smoke?
e. Change brightness?
f. Change shape?
g. Flicker, throb, or pulsate?
(Circle One for each question)
Yes No Don't Know
Yes No Don't Know
Yes No Don't Know
Yes No Don't Know
Yes No Don't Know
Yes No Don't Know
Yes No Don't Know
12. Did the object move behind something at anytime, particularly a cloud?
(Circle One):
it moved behind:
Yes No Don't Know. IF you answered YES, then tell what
13. Did the object move in front of something at anytime, particularly a cloud?
(Circle One): Yes No Don't Know. IF you answered YES, than tell what
it moved in front of: :
14. Did the object appear: (Circle One): a. Solid? b. Transparent? c. Don't Know.
15. Did you observe the object through any of the following?
a. Eyeglasses Yes No
b. Sun glasses Yes No
c. Windshield Yes No g
e. Binoculars
f. Telescope
Theodolite
d. Window glass Yes No h. Other
Yes
Yes
Yes
No
No
No
280

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.