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.
“US Navy”1 page
CODE 56 DISAPPEARANCE BEARING X - Disappeared suddenly Y 0 - N 1 - NE 2 - E 3 - SE 4 - S 5 - SW 6 - W 7 - NW 8 9 CODE 57-58 ELEVATION WITH RESPECT TO GROUND, DEGREES X Y 0 I 2 3 4 5 6 7 8 9 Initial Variable 0-9 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 X Y 0 1 2 3 4 5 6 7 8 9 Final Variable 0-9 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 CODE 61 OBJECT ORIENTATION Apparent inclination of principal axis of object from horizontal X Y 0 1 2 3 4 5 6 7 6 9 Variable •90 to ^0 «.6O to 30 4.30 to 10 4-10 to 0 0 0 to -10 -10 to -30 -30 to -60 -60 to -90 CODE 65 SERVICE X Y 0 1 2 3 4 5 6 7 8 9 Army Navy Marine Air Force Coast Guard Merchant Commercial Air CAA Gov't, Other . Contractor CODE 62-63-64 CIVILIAN OCCUPATION Dictionary of Occupational Titles, Vol. II, 2nd Edition, pp. XIX-XXVI. U.S* Department of Labor, Bureau of Employment Security. U.S. Government Printing Office, Washington, D. C , 1949. See pp. XIX-XXVI. CODE 66 DUTY X Y 0 1 2 3 4 5 6 7 8 9 Pilot Weather tech. Radar tech. Tover op. Balloon obs. Tech. spec. Guards, lookouts Ground or deck crews Navig. or bombardier Other 294
Analysis, from the classic collection. 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.