This report describes a rather up-close and personal UFO encounter on July 9, 1951, by the pilot of an F-51 fighter plane from Lawson Air Force Base in Georgia. The pilot, a combat veteran from World War Two, provided quite a bit of detail, which was recorded in the report.
Object "UFO" described as flat on top and bottom and appearing from a front view to have rounded edges and slightly beveled. From view as object dived from top of plane was completely round and spinning in clockwise direction.... Object "UFO" did not appear to be aluminum. Only 1 object observed. Solar white. No vapor trails or exhaust or visible system of propulsion. Described as traveling [at] tremendous speed....Pilot states object was 300 to 400 feet from plane and appeared to be 10 to 15 feet in diameter....Pilot states he felt disturbance in the air described as ‘bump’ when object passed under plane....Pilot is considered by associates to be highly reliable, of mature judgement and a creditable observer.”