Project Blue Book Special Report No. 14: Analysis of Reports of Unidentified Aerial Objects

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.

Case VIII (Serial 0576.00)
An electrician was standing by the bathroom window of his home,
facing west, at 0825 hours on July 31,| 1948, when he first sighted an object.
He ran to his kitchen where he pointed out the object to his wife. Total
time in sight was approximately 10 seconds, during which the object flew
on a straight and level course from horizon to horizon, west to east.
Noted shadow
20'
(Ratio approx. 3:1)
84