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.
COORDINATOR CO ORIGINATOR DISTRIBUTION AIR INTELLIGENCE INFORMATION REPORT Project "BION" AP-35165-1 AID REPORT ON Sweden OAA-Gmede DATE OF REPORT DATE OF INFORMATION VALUE TIME 30 December 1946 29 December 1948 3-2 RELEASE BY DONALD L. HARDY, Colonel, USAP Swedish Defense Staff SOURCE CONTROL No. AUD-435 1. The Swedish Defense Staff has no proof that any unidentified flying objects, missiles or vehicles have passed over or near Sweden to date. 2. All reports of sightings in Sweden during the past year, irrespective of to whom they were submitted, have been funneled to a special section of the Defense Staff, where the sightings were plotted. In each case an exhaustive interrogation of the sighter followed, somewhat along the lines of the REL for Project "SDIN". All evidence obtained of sightings was exploitable in terms of astronomical phenomena. 3. In addition, 3 ground radar stations and 2 radar equipped destroyers cooperated in maintaining watch. The radar equipments were Swedish modified British sets of fairly short range and were not operated on a 24 hour basis; however, no unexplained sightings were made with this equipment. 4. Conclusion: Although the possibility exists that objects have traversed Sweden and its adjacent waters, no proof has been obtained to confirm such flight in any instance. CONCLUSION: The cooperation of the Defense Staff in securing this information was undoubtedly given in an effort to emphasize their need for additional U.S. radar equipment. The Swedish Air Board had previously negotiated with the Dendle Corporation for 20 TPS-1 sets but had been refused an export license by our State Department. The numbers of the Defense Staff, to whom I talked, were eager to point out the good use to which such equipment could be put for both ourselves and the Sweden as instanced by our mutual interest in unidentifiable flying objects. However, I am convinced that our refusal to grant an export license for such equipment will do more good in implementing our national policy, as expressed in the National Security Council documents IDC 28/1, than would the information we might receive from the use of such equipment here. /s/ Donald L. Hardy DONALD L. HARDY Colonel, USAP Air Attache Distribution by Originator CO UEAFE, UBPA, AA Oelo, Copenhagen, XX, SD - Stockholm
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.