DOW-UAP-D093 — Air Intelligence Division: Analysis of Flying Object Incidents (1948)

67-page U.S. Air Force Air Intelligence Division study (Study No. 203, 1948): Analysis of approximately 210 reported flying object sightings in the U.S. Three hypotheses were examined: domestic devices, natural phenomena, foreign aircraft. None could explain all cases. This document is a precursor to Project Blue Book and shows that the Air Force was seriously considering unexplainable phenomena as early as 1948. Released as PURSUE Release 04. Official document ID: DOW-UAP-D093.