Hamilton AFB, California: Air Traffic Controllers Track Disc at 1,000 mph
On June 21, 1950, at Hamilton Air Force Base, California, three air traffic controllers witnessed a flying disc making at least three passes over the base at 2,000-5,000 feet and speeds exceeding 1,000 mph, trailing blue flame.
Background
At Hamilton Air Force Base, California, on June 21, 1950, three air traffic controllers witnessed a flying disc make at least three passes over the base, emitting a 'thunder-like roar.' They followed the craft with binoculars as it buzzed the field at elevations of 2,000-5,000 feet and speeds in excess of 1,000 mph, trailing blue flame 'like an acetylene torch.'
The multiple passes over a military air base, observed by professional air traffic controllers with binoculars, and the distinctive blue flame trail made this a particularly well-documented case.