An Air Intelligence Requirements Memorandum, issued by the Department of the Air Force, Directorate of Intelligence, on February 15, 1949, outlines standardized procedures for reporting sightings of "unconventional aircraft." Titled "AIR INTELLIGENCE REQUIREMENTS MEMORANDUM NUMBER 4: UNCONVENTIONAL AIRCRAFT," it details continuing requirements for information pertaining to "unidentified flying objects" (UFOs) and "Flying Discs." The document specifies extensive data collection requirements for observers, covering temporal, geographical, and object characteristics, and defines the reporting chain to Headquarters United States Air Force and Wright-Patterson AFB. This memorandum supersedes previous Army Collection Memorandums on the subject.
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Scientific validation axis from the AATIP framework. Checks whether the record references characteristics that would constitute evidence of anomalous technology.
Hovering or lift without conventional means
Acceleration defying known physics
High speed without expected physical effects
Evading or confounding sensor systems
Transitioning between air, water, or space
Physiological effects on witnesses or organisms
