This file primarily contains incident reports on Unidentified Flying Objects (UFOs) written in compliance with the 1948 Flight Service Regulation (FSR) 200-4. The incidents were witnessed by military sources, as well as well as by some Civilian Aviation Authority (CAA) ones. The reports typically include information such as dates, locations, weather, and altitude, plus detailed descriptions of appearance and movement. Some messages from the Military Air Transport Service (MATS) and Army Airways Communications System (AACS) are also included, as well as additional military intelligence reports, several diagrams, and a report from a weather station in Japan.
This file contains memorandums and correspondence related to flying disc/saucer sightings and that those are a matter of concern for the Air Materiel Command.
This file contains memorandums, correspondence, and forms related to the reporting of information on flying discs and investigations into sightings.
This file contains SHAEF messages and memorandums related to "night phenomena (foofighters)," flak rockets, unidentified cylindrical objects, and blinking lights. The documents include multiple references to the observations of the 415th Night Fighter Squadron.