1947-09-11 / Portland, Oregon / 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)