BISMARK, N.D., July 1952 - Incident Number: [ILLEGIBLE]July 1952

On Monday, July 28, 1952, at 10:00 a.m. Central Time, two silver or luminous objects were spotted flying in formation directly north of Bismark, North Dakota. The sighting occurred about five to ten miles north of the city. Both witnesses were experienced observers, and their statements, submitted separately, describe the same event.

The objects appeared to be roughly the size of a DC-3 aircraft, with round or oval shapes. They flew in a northwesterly direction at what the witnesses estimated was a very high speed. The objects remained visible for fifteen to twenty seconds before disappearing rapidly from sight. The witnesses noted they could not detect any windows or visible means of propulsion. Interestingly, while the objects flew north, the sound of motors or engines seemed to come from the south or southwest, a discrepancy the observers found notable.

The witnesses were well qualified to assess the sighting. One was Mrs. a wife of a DC-3 pilot employed by Magnolia Oil Company, who had served as an aircraft spotter during World War II with a total of 150 hours of experience. She stated the objects were completely different from any aircraft she had seen during or since the war, and said she was familiar with T-33 and T-51 aircraft and saw no connection to them. Shortly after this sighting, three F-51 Mustang fighter planes flew over the area from southwest to northeast.

The weather was clear at the time, with winds aloft at 61 knots from 320 degrees. No radar contact was established, and no physical evidence was collected. An F-36 bomber was in the area at 40,000 feet, and three F-51s were in the local area. The Air Force file does not state a final evaluation of what the objects were. This case file consists of ten pages as held by the National Archives.