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.
## UNCLASSIFIED Incident PGI -- Oregon, Oregon -- 3 September 1947 the limited information given here does not suggest any- tning astronomical. It is surprising that there was only one witness to this incident, since it occurred in a city, at a time when there was a plane in the sky. If these objects were not ordinary aircraft at a great distance, or a cluster of balloons, then the incident must be considered together with others reporting groups of unidentified round or diaroid objects, several or which occurred in this locality (e.g., incidents 26-9, 12-10).
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.