Documents / Report

Unidentified Flying Objects: Project "Grudge" (Technical Report No. 102-AC 49/15-100)

US Air Force, Air Materiel Command · 1949-08 · 413 pages · text by OCR

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.

Incident g164, 1344 -- Colunnes, vhio -- 2 maus 1940

This incident is in two respects unique; all those investigated 1) it is the only object that is certain solely by an outline, appearing vague inside, so that the eye was visible through it; and 2) it is similar to an object that this investigator viewed as a boy.

The writer's resollection has remained vivid throughout these many years. The object he saw could be described as a floating ellipse, like a wire hoop travelling slowly across the sky. The motion was uniform, and the form of the object arranged slowly, as though the hoop were being distorted. The object was observed for at least ten minutes, with several witnesses, until it finally disappeared in the distance. The writer had discussed the object as some sort of unusual atmospheric phenomenon, perhaps a trarolling air pocket.

because of the similarity between this observation and that reported in incident v116, the latter has a special interest to this investigator. In the recent incident, however, the tail of smoke is an added feature.

There is previously no astronomical explanation for these incidents the most plausible explanation probably lies in the field of meteorology.

Cases discussed

About this file

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.