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.
Insideut r05 -- Silver Uprings. Vhlo == 7 august 1947 From all evidence, it appears that the object seen here was a bright noteworthy. Glowing meteors occur before midnight, and, while their paths are almost never "absolutely horizontal," it is quite possible that the observer could have gained this in precession, since the object was in eight for only three or four seconds. Furthermore, an observer, surprised by an unusual on-earce, often tends to overestimate the actual duration of time; thus, "three or four seconds" might mean not much more than a second. There is nothing at all in the evidence that cannot be explained under the assumption that the object was a meteor.
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.