Columbus Ohio, December 1951December 1951

On December 22, 1951, a U.S. Air Force pilot flying an F-84C fighter jet near Columbus, Ohio reported seeing an unidentified object in the sky. The pilot, an experienced jet fighter with about 1,700 flying hours and service during World War II, was flying at 15,000 feet when he spotted the object at roughly two o'clock high (to the right and above) at approximately 10:30 a.m. The object appeared to be silver in color and shaped like an aircraft without a tail section.

The object was located about five miles east of Columbus and was flying in the opposite direction from the pilot's aircraft, heading eastward at an altitude of at least 20,000 feet. The pilot observed the object for about one to one and a half minutes. During this time, the object appeared to be rolling or tumbling rapidly on its side, completing seven to ten full rolls per second. The pilot estimated the object was traveling at speeds exceeding 300 miles per hour, roughly the speed of a jet fighter. He heard no sound and saw no exhaust trail or propulsion system.

When the pilot attempted to turn and chase the object for a closer look, he lost sight of it in the glare of the sun. A further search failed to relocate it. The sky was clear at the time of the sighting.

The Air Force investigation that followed established that a weather balloon had been released from Port Columbus Airport at approximately 10 a.m., just before the sighting. Wind conditions at the time were from the west at about 30 knots, which would have carried the balloon into the general area where the pilot saw the object. However, the investigation noted that while a balloon could have been in the vicinity, the reported rolling motion and shape of the object could not easily be explained by balloon behavior, even accounting for how balloons can appear deceptive to pilots traveling at high speed. The Air Force concluded that the pilot "possibly sighted a weather balloon," but stated that the object's reported actions and appearance remained unexplained. The case file reproduces 15 pages of investigative documents and materials held by the National Archives.