Documents / Analysis
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.
“Jet Propulsion Laboratory”1 page
INDEX OF TABLES (Continued) Page Table A34. Evaluation of Unit Sightings by Sighting Reliability Groups, 1948 132 Table A35. Evaluation of Unit Sightings by Sighting Reliability Groups, 1949 . 132 Table A36. Evaluation of Unit Sightings by Sighting Reliability Groups, 1950 133 Table A37. Evaluation of Unit Sightings by Sighting Reliability Groups, 1951 , 133 Table A38. Evaluation of Unit Sightings by Sighting Reliability Groups, 1952 133 Table A39. Evaluation of Object Sightings by Sighting Reliability Groups, All Years 134' Table A40. Evaluation of Object Sightings by Sighting Reliability Groups, 1947 134 Table A41. Evaluation of Object Sightings by Sighting Reliability Groups, 1948 134 Table A42. Evaluation of Object Sightings by Sighting Reliability Groups, 1949 134 Table A43. Evaluation of Object Sightings by Sighting Reliability Groups, 1950 135 Table A44. Evaluation of Object Sightings by Sighting Reliability Groups, 1951 135 Table A45. Evaluation of Object Sightings by Sighting Reliability Groups, 1952 135 Table A46. Evaluation of All Sightings for All Years by Sighting Reliability Groups, Military Observers 136 Table A47. Evaluation of All Sightings for All Years by Sighting Reliability Groups, Civilian Observers 136 Table A48. Evaluation of All Sightings for 1947 by Sighting Reliability Groups, Military Observers . ' 136 Table A49. Evaluation of AH Sightings for 1947 by Sighting Reliability Groups, Civilian Observers 136 Table A50. Evaluation of All Sightings for 1948 by Sighting Reliability Groups, Military Observers 137 Table A51. Evaluation of All Sightings for 1948 by Sighting Reliability Groups, Civilian Observers 137 Table A52. Evaluation of AU Sightings for 1949 by Sighting Reliability Groups, Military Observers 137 Table A53. Evaluation of All Sightings for 1949 by Sighting Reliability Groups, Civilian Observers 137 Table A54. Evaluation of All Sightings for 1950 by Sighting Reliability Groups, Military Observers 138 Table A55. Evaluation of All Sightings for 1950 by Sighting Reliability Groups, Civilian Observers 138 Table A56. Evaluation of All Sightings for 1951 by Sighting Reliability Groups, Military Observers 138 Table A57. Evaluation of All Sightings for 1951 by Sighting Reliability Groups, Civilian Observers . 138 Table A58. Evaluation of All Sightings for 1952 by Sighting Reliability Groups, Military Observers 139 I 98
Analysis, from the classic collection. 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.