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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.

Open the PDF at page 65 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 Central Midwest…
  • p. 113 …Evaluation of Object Sightings in the Strategic Areas of the Central Midwest Region 252 Table A237…
Ol
ingsSightject
XI
O
°
J5Numl
300
275
250
225
200
175
150
125
100
75
50
25
-90
All object sightings
Sun rise
Unknown object, sightings
Suniset
-60 -30 + 30 +60 +90 +60 +30
Angle of Elevation of The Sun
-30 -60 - 9 0
FIGURE 4 0 FREQUENCY OF OBJECT SIGHTINGS BY ANGLE OF ELEVATION OF THE SUN, INTERVALS
OF 10 DEGREES OF ANGLE
A-7336

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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.