Czechoslovakia: 150-Meter Disc Hovers Over Air Force Base with EM Effects and Radar Tracking
On November 16, 1959, at a Czechoslovakian Air Force base, a 150-meter disc with a ring of light hovered over a runway after causing vehicle EM failure; tower radar tracked it; no jets could launch. It departed after two minutes of hovering.
Background
Commencing about 8:00 p.m. on November 16, 1959, at a Czechoslovakian Air Force base, two officers were driving when their engine suddenly died. They then saw an odd ring of light crossing the night sky.
Multiple Witnesses
Concurrently, pilots and ground personnel watched a 'flaming ball' fly silently at great speed across the terrain, execute a 90-degree turn, then leave the area. Tower radar tracked its movements. Moments later it returned and stopped 100 meters over a runway. Personnel described it as a disc, at least 150 meters in diameter, with a ring of light around the perimeter.
No Intercept Possible
For reasons left unexplained, none of the jet aircraft present were able to take off. After hovering for two minutes, the machine shot into the night.