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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 104 Original source ↗

“Jet Propulsion Laboratory”1 page

  • p. 94 …approach the speed of a jet before it disappeared. No propulsion was apparent. Time of observation…
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INDEX OF TABLES
Table Al. Evaluation of All Sightings by Years 107
Table A2. Evaluation of Unit Sightings by Years . . . . s 107
Table A3. Evaluation of Object Sightings by Years 108
Table A4. Evaluation of All Sightings by Month of Year, All Years 109
Table A5. Evaluation of All Sightings by Month of Year, 1947 110
Table A6. Evaluation of All Sightings by Month of Year, 1948 Ill
Table A7. Evaluation of All Sightings by Month of Year, 1949 '. . . . 112
Table A8. Evaluation of All Sightings by Month of Year, 1950 113
Table A9. Evaluation of All Sightings by Month of Year, 1951 114
Table A10. Evaluation of All Sightings by Month of Year, 1952 115
Table A l l . Evaluation of Unit Sightings by Month of Year, AH Years . 116
Table A12. Evaluation of Unit Sightings by Month of Year, 1947 117
Table A13. Evaluation of Unit Sightings by Month of Year, 1948 118
Table A14. Evaluation of Unit Sightings by Month of Year, 1949 119
Table A15. Evaluation of Unit Sightings by Month of Year, 1950 120
Table Al6. Evaluation of Unit Sightings by Month of Year, 1951 121
Table A17. Evaluation of Unit Sightings by Month of Year, 1952 . 122
Table A18. Evaluation of Object Sightings by Month of Year, All Years 123
Table A19. Evaluation of Object Sightings by Month of Year, 1947 124
Table A20. Evaluation of Object Sightings by Month of Year, 1948 ' 125
Table A21. Evaluation of Object Sightings by Month of Year, 1949 126
Table A22. Evaluation of Object Sightings by Month of Year, 1950 127
Table A23. Evaluation of Object Sightings by Month of Year, 1951 128
Table A24. Evaluation of Object Sightings by Month of Year, 1952 129
Table A25. Evaluation of All Sightings by Sighting Reliability Groups, All Years 130
Table A26. Evaluation of All Sightings by Sighting Reliability Groups, 1947 130
Table A27. Evaluation of All Sightings by Sighting Reliability Groups, 1948 130
Table A28. Evaluation of All Sightings by Sighting Reliability Groups, 1949 130
Table A29. Evaluation of All Sightings by Sighting Reliability Groups, 1950 131
Table A30. Evaluation of All Sightings by Sighting Reliability Groups, 1951 . '. 131
Table A31. Evaluation of All Sightings by Sighting Reliability Groups, 1952 131
Table A32. Evaluation of Unit Sightings by Sighting Reliability Groups, All Years 132
Table A33. Evaluation of Unit Sightings by Sighting Reliability Groups, 1947 .• 132
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Report, cited by the archive. The PDF is mirrored here; the original link is above. 309 pages are in the text index: search them above, or from the library's search.