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.
CARD BIBLE U. S. Air Force Technical Information Sheet Question Punched Card Column Code Description 1. 1 2 k 12 13 W 22* 23 2U25 26 Serial No. Identification Serial 5 6 7* a 9 10 11 Sub- Serial No, Sighting Serial No. Number Identification Incident Serial Number Day Month Observed 2. 3, 16 17 16 19 20 21 Year Hours Minutes - Time of Observation Greenwich C. T. Key Hours Local Sun Minutes U. 27* 28. 29 30 31* 32 35 36* 37 Latitude Location Longitude Regional Area Strategic Area •Vr Denotes that separate code key is needed. Card Deck No. is identified by an X (or 11 Punch) in Column 311 (V
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.