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 Instruct r147 - Gyrin:Field, Ohio - 27 July 1940 The description of this incident, although noayer, is in agreement with the hypothesis that the object observed was a fire-ball. Thus, "tri in red tail of fire," "travelled in straight line," "great height," and the short time in which all increase the prooferility that it was a bright meteor. The fact that it was travelling north, at this time of night, implies that the meteor was crossing the orbit of the earth on its way toward the sun when the collision occurred.
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.