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.
No. 226: Sighted one hour after release at Albany airport, green flares appeared as in previous five or six cases, and moving into the wind from East to West. No balloon. No. 227. Read report of incident; definitely not a weather balloon. Serves also as guide to interpreting incidents 227, 221, 225, and 226. No. 224: Case under investigation, no information. To. 229. Case dropped. No. 230. Exactly as described in 223, etc. Definitely no weather balloon. No. 251; Another glowing green flare just as described above. No. 232; Investigation dropped. No. 233: Definitely to bolloon; name turns, definite fuselage, accelerated from 200 L.P.H. to 1,00 L.P.H.
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.