1952 Washington D.C. UFO Flap
Over two consecutive weekends in July 1952, unidentified objects appeared on radar at Washington National Airport and Andrews AFB, and were visually confirmed by multiple witnesses including airline pilots. F-94 interceptors were scrambled but couldn't catch the objects. The incidents triggered the largest Pentagon press conference since WWII. The Air Force attributed the sightings to temperature inversions — an explanation widely disputed by the radar operators themselves. The flap occurred weeks after nuclear tests and directly led to the CIA's Robertson Panel, which recommended debunking UFOs as a matter of national security policy.
Key Figures
Evidence
Project Blue Book Archive — 12,618 UAP Reports
The complete declassified archive of the U.S. Air Force's Project Blue Book, which investigated 12,618 UAP sightings between 1947 and 1969. 701 cases remain officially 'unidentified' — meaning the Air Force itself could not explain them after investigation. The project was shut down in 1969 following the Condon Report, but critics note the report's conclusion was written before the investigation was complete.
1952 Washington DC UFO Wave — Radar Returns and Press Photos
On two consecutive weekends in July 1952, unknown objects appeared on radar at Washington National Airport and Andrews AFB, and were visually confirmed by pilots and ground observers. F-94 interceptors were scrambled. The objects outran the jets. President Truman personally demanded answers. The Air Force held its largest press conference since WWII to explain the sightings as temperature inversions — an explanation that CAA radar operators rejected. The incident triggered the CIA Robertson Panel.