US: Printed copies of Air Intelligence Report 100-203-79
Certain printed versions of the US Air Force's Air Intelligence Report 100-203-79, analyzing flying object incidents, are dated April 28, 1949, despite original release on December 10, 1948.
Background
Background
Air Intelligence Report 100-203-79, titled "Analysis of Flying Object Incidents in the United States", was originally issued on December 10, 1948 by the US Air Force, Directorate of Intelligence. It summarises sightings of unidentified flying objects in the USA and draws conclusions about their nature.
Event Details
On April 28, 1949, some printed copies of this report carried this later date, although the content is identical to the original version. This suggests a later print run or distribution. The report analyses patterns of sightings, particularly in the coastal states, Ohio, and Kentucky, and discusses hypotheses such as Soviet tests or psychological warfare.
Evidence and Sources
The document is archived as Air Intelligence Report 100-203-79 and is available declassified. It contains maps of sighting areas and assessments of cases, including radar data and pilot sightings. No specific witnesses are named for the printing date; the source is Eberhart's UFOs and Intelligence Timeline, p. 199.
Significance
This report marks an early official attempt by the US Air Force to investigate UFO sightings systematically, shortly after Project Sign. It influenced later programmes such as Grudge and Blue Book and points to military concern about unknown aerial phenomena in the Cold War.