Circular UFO sighted by a pilot in 1954

Summary

A U.S. Air Force pilot, Captain P. Swift, reported a bright, circular object on September 27, 1954, near Philadelphia, Pennsylvania. The object was moving rapidly southwest at an altitude between 15,000 and 20,000 feet. The sighting lasted about four minutes, prompting some interest from military authorities. Although the possibility of an aircraft was considered, there was not enough data for a definitive evaluation. The report was classified as insufficient for a conclusive analysis.

The case was recorded under Project 10073, an Air Force initiative to gather data on unidentified flying objects. Despite the brief nature of the sighting, the fact that it was reported by a military officer adds some significance. However, the lack of physical or photographic evidence, along with some data inconsistencies, prevented reaching firm conclusions. Reports like this, though inconclusive, are valuable for understanding the historical context of UFO studies.