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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.
“Jet Propulsion Laboratory”1 page
t INDEX OF TABLES (Continued) , Page Table A159. Evaluation of Object Sightings for All Years by Reported Speeds of Objects, Stationary 207 Table A160. Evaluation of Object Sightings for All Years by Reported Speeds of Objects, Less Than One Hundred Miles per Hour 207 Table A161. Elevation of Object Sightings for All Years by Reported Speeds of Objects, One Hundred to Four Hundred Miles per Hour 208 Table A162. Evaluation of Object Sightings for All Years by Reported Speeds of Objects, Over Four Hundred Miles per Hour 208 Table A163. Evaluation of Object Sightings for All Years by Reported Speeds of Objects, Meteor-Like Speeds 209 Table A164. Evaluation of Object Sightings for All Years by Reported Speeds of Objects, Speed Not Stated 209 Table A165. Evaluation of All Sightings for All Years by Light Brightness 210 Table A166. Evaluation of Unit Sightings for All Years by Light Brightness 211 Table A167. Evaluation of Object Sightings for All Years by Light Brightness • . 2 12 Table A168. Location of Observers During Sighting by Months for All Sightings, All Years . . 213 Table A169. Location of Observers During Sighting by Months for All Sightings, 1947 214 Table A17D. Location of Observers During Sighting by Months for All Sightings, 1948 215 Table A171. Location of Observers During Sighting by Months for All Sightings, 1949 . 216 Table A172. Location of Observers During Sighting by Months for All Sightings, 1950 217 Table A173. Location of Observer During Sighting by Months for All Sightings, 1951 218 Table A174. Location of Observers During Sighting by Months for All Sightings, 1952 . . 219 Table A175. Evaluation of All Sightings for All Years by Colors Reported for Duration oif Sighting, White or Glowing White Objects . 220 Table A176. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, Metallic Objects 220 Table A177. Evaluation of All Sightings for All Years by Colors Reported" for Duration of Sighting, Object Color Not Stated 221 Table A178. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, Orange or Glowing Orange Objects 221 Table A179. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, Red or Glowing Red Objects 222 Table A180. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, Green or Glowing Green Objects 222 Table A181. Evaluation of All Sightings for All Years by Colors Reported for Duration of Sighting, Yellow or Glowing Yellow Objects 223 Table A182. Evaluation of All Sightings for AH Years by Colors Reported for Duration of Sighting,-Objects of Other Colors . 223 Table A183. Evaluation of Unit Sightings for All Years by Colors Reported for Duration of Sighting, White or Glowing White Objects 224 103
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.