Project 10373 Record Card and Air Intelligence Information Report — 27 August 1952

This document comprises an Air Intelligence Information Report (MAFB-2) dated 4 September 1952, concerning an unidentified aerial object sighting that occurred on 27 August 1952. The report details an incident involving two Air Force airmen, A/2C Darrell Clarkson and S/Sgt George F. Fuller, who were sunbathing in the town of Edgemont, California, approximately two miles north of March Air Force Base. At 1915 hours PST, the witnesses observed a single object that they described as oval-shaped, resembling a football or a 'cheap clear light bulb.' The object was estimated to be at an altitude of 20,000 to 25,000 feet and was traveling in a straight line toward the southeast. Both witnesses emphasized that the object moved at a 'great speed,' estimated to be two to three times faster than a conventional jet fighter. The object left no vapor trail and made no sound. It was visible for approximately 30 seconds, specifically while it was crossing the area illuminated by the sun's rays. Both witnesses noted that a jet aircraft appeared in the area shortly after the sighting—approximately 5 to 10 minutes later—flying in the direction from which the object had originated. The weather conditions were reported as clear and unlimited. The report includes a rough sketch of the object's path and the witnesses' individual statements. The official conclusion provided on the Project 10373 record card suggests the presence of jet aircraft in the area and notes that many research and development balloons were released at 0300Z in the vicinity, though the report itself acknowledges that no estimate of reliability could be made by the reporting officer.