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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.
INDEX OF TABLES (Continued) Page Table A l 3 3 . Evaluation of Unit Sightings for All Years by Shape of Object, Elliptical 193 Table A134. Evaluation of Unit Sightings for All Years by Shape of Object, Rocket and Aircraft 193 Table A135. Evalua^on of Unit Sightings for All Years by Shape of Object, Meteor or Comet 194 Table A136. Evaluation of Unit Sightings for All Years by Shape of Object, Lenticular, Conical, or Teardrop 194 Table A137. Evaluation of Unit Sightings for A l l Years by Shape of Object, Flame 195 Table A138. Evaluation of Unit Sightings for All Years by Shape of Object, Other Shapes 195 Table Al/39. ' Evaluation of Unit Sightings for All Years by Shape of Object, Shape Not Stated 196 Table A140. Evaluation of Object Sightings for All Years by Shape.of Object, Elliptical 197 Table A 1 4 1 . Evaluation of Object Sightings for All Years by Shape of Object, Rocket and Aircraft 197 Table A 1 4 2 . Evaluation of Object Sightings for All Years by Shape of Object, Meteor or Comet 198 Table A 1 4 3 . Evaluation of Object Sightings for All Years by Shape of Object, Lenticular, Conical, or Teardrop ' 198 Table A144. Evaluation of Object Sightings for All Years by Shape of Object, Flame 199 Table A145. Evaluation of Object Sightings for All Years by Shape of Object, Other Shapes . 199 Table A146. Evaluation of Object Sightings for All Years by Shape of Object, Shape Not Stated . . . . . . . 200 Table A147. Evaluation of All Sightings for All Years by Reported Speeds of Objects, Stationary 201 Table A.148. Evaluation of All Sightings for All Years by Reported Speeds of Objects, L e s s Than One Hundred Miles per Hour . . . . : . . . . 201 Table A149. Evaluation of All Sightings for All Years by Reported Speeds of Objects, One Hundred to Four Hundred Miles per Hour 202 Table A150. Evaluation of All Sightings for All Years by Reported Speeds of Objects, Over Four Hundred Miles per Hour 202 Table A 1 5 1 . Evaluation of All Sightings for All Years by Reported Speeds of Objects, Meteor-Like Speeds 203 Table A 1 5 2 . Evaluation of All Sightings for All Years by Reported Speeds of Objects, Speed Not Stated 203 Table A153. Evaluation of Unit Sightings for All Years by Reported Speeds of Objects, Stationary. . . . . . 204 Table A154. Evaluation of Unit Sightings for A l l Years by Reported Speeds of Objects, L e s s Than One Hundred Miles per Hour 204 Table A155. Evaluation of Unit Sightings for All Years by Reported Speeds of Objects, One Hundred to Four Hundred Miles per Hour 20 5 Table A156. Evaluation of Unit Sightings for A l l Years by Reported Speeds of Objects, Over Four Hundred Miles per Hour 205 Table A157. Evaluation of Unit Sightings for A l l Years by Reported Speeds of Objects, M e t e o r - L i k e Speeds . 206 Table A 1 5 8 . Evaluation of Unit Sightings for A l l Years by Reported Speeds of Objects, Speed Not Stated . 206 102
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.