Location file

Portland, Oregon

The Air Materiel Command issued this initial report on unidentified flying objects on 23 April 1948, prepared at Wright-Patterson Air Force Base under Project SIGN, which had been directed by a Headquarters USAF letter dated 30 December 1947 signed by General L. C. Craigie on the subject of "Flying Discs." The report tabulates 100 sightings from 1947 through 1 February 1948, noting that exhaust trails were reported 23 times and that speeds ranged from hovering to supersonic.

Map coordinates

44.5720, -122.0709

1947-09-11 / unresolved

On September 11, 1947, Portland Police Department officers in Districts 18 and 14, including Chief of Police Leon V. Jenkins, reported sighting a round silver object over Portland, Oregon between 5:21 and 5:27 PM. In July 1947, pilot Jack Peck and co-pilot Vince Daly of the Al Jones Flying Company observed a flying wing object near Bethel Airport, Alaska, describing it as approximately the size of a C-54 without any fuselage, flying at 1,000 feet at an estimated 300 miles per hour with no propeller, jet exhaust, or vapor trails.

Round silver object, approximately 10,000 feet high, travelling northeast to southwest, changed to egg-shaped as it turned, disappeared in about 30 seconds (Jenkins, Portland)