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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.

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

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.