Air Intelligence Information Report: UFOB Beloit, Wisconsin & Marengo, Illinois

This Air Intelligence Information Report, dated August 18, 1955, details the investigation into Unidentified Aerial Phenomena (UFOB) reported in Beloit, Wisconsin, and Marengo, Illinois, on August 11-12, 1955. The investigation was conducted by Flight 3-A of the 4602D Air Intelligence Service Squadron (AISS). The report compiles accounts from several witnesses, including GOC observers and local residents. Witnesses described seeing multiple round, bright objects that varied in color between white and red, appeared to spin, and emitted a sound similar to an electric motor. The objects were reported to travel at great speeds in north-to-south and south-to-north directions. The investigation included consultations with the Adler Planetarium in Chicago, which confirmed that the Perseid meteor shower was at its peak during this period. The Planetarium director suggested that the Beloit sightings were likely meteors, while the Marengo sightings were potentially jet aircraft viewed through high-altitude clouds. Further inquiries with the 42d Fighter Interceptor Squadron confirmed that F-86-D jet aircraft were operating in the Marengo area during the early morning of August 8. The 18th Weather Detachment provided meteorological data indicating clear conditions with thin, high-altitude clouds. The investigating officer, M/Sgt Stanley B. Montz, concluded that the Beloit sightings were part of the Perseid meteor shower, while the Marengo sightings were likely jet aircraft. The approving officer, Colonel John M. White Jr., concurred with these findings, noting that the initial confusion was exacerbated by the consolidation of two distinct reports into a single message.