Documents / Report
This August 1949 technical report from the US Air Force Air Materiel Command presents Project Grudge's investigation of unidentified flying objects through January 1949. Drawing on consultants including Dr. J. A. Hynek, Rand Corporation, the Air Weather Service and Dr. P. M. Fitts, it explains most of 244 incidents as balloons, aircraft, astronomical phenomena, hoaxes or psychological errors. It concludes the objects pose no direct threat to national security and recommends reducing the investigation in scope.
# CONCLUSIONS 1. Evaluation of reports of unidentified flying objects to data demonstrate that these flying objects constitute no direct threat to the national security of the United States. 2. Reports of unidentified flying objects are the result of: a. L'interpretation of various conventional objects. b. A mild form of mass hysteria or "war nerves". o. Individuals who fabricate such reports to perpetrate a heax or to seek publicity. d. Psychopathological persons. 3. Planned release of unusual aerial objects coupled with the release of related psychological propaganda could cause mass hysteria. a. Employment of these methods by or against an enemy would yield similar results.
Report, from the classic collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 413 pages are in the text index: search them above, or from the library's search.