1952 Washington, D.C. UFO Incident Case Files

1952 Washington, D.C. UFO Incident

Case Files

Friday, May 15, 2026 06:06 (UTC)

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The 1952 Washington, D.C. UFO incident (sometimes called the "Washington Flap" or the "Washington National Airport Sightings") was a series of UFO sightings over Washington, D.C., primarily on the nights of July 19–20 and July 26–27, 1952. The case is one of the most significant ever investigated by Project Blue Book and directly triggered the formation of the Robertson Panel.

1952 Washington, D.C. UFO Incident:
The 1952 Washington, D.C. UFO incident (sometimes called the "Washington Flap" or the "Washington National Airport Sightings") was a series of UFO sightings over Washington, D.C., primarily on the nights of July 19–20 and July 26–27, 1952. The case is one of the most significant ever investigated by Project Blue Book and directly triggered the formation of the Robertson Panel.

1952 Washington DC UFO Incident — Cold War Context and the 1952 UFO Wave:

1952 Washington DC UFO Incident — Competing Explanations:

1952 Washington DC UFO Incident — Complete Timeline July 12-29 1952:

1952 Washington DC UFO Incident — July 19-20 1952: The First Weekend:

1952 Washington DC UFO Incident — July 26-27 1952: The Second Weekend:

1952 Washington DC UFO Incident — Key Persons Directory:

1952 Washington DC UFO Incident — Maj. Dewey Fournet and Lt. John Holcomb: On-Site Assessment:

1952 Washington DC UFO Incident — Master Case File:

1952 Washington DC UFO Incident — President Truman and the White House Response:

1952 Washington DC UFO Incident — Project Blue Book and Capt. Ruppelt:

1952 Washington DC UFO Incident — Restricted Airspace and National Security Implications:

1952 Washington DC UFO Incident — The CIA Response and the Robertson Panel:

1952 Washington DC UFO Incident — The F-94 Starfire Intercept Missions:

1952 Washington DC UFO Incident — The Incident in UFO Research Canon:

1952 Washington DC UFO Incident — The July 29 Pentagon Press Conference:

1952 Washington DC UFO Incident — The Objects Behaviour: What Was Observed:

1952 Washington DC UFO Incident — The Radar Evidence: Technical Analysis:

1952 Washington DC UFO Incident — Visual Witnesses: Controllers Pilots and Civilians:

1952 Washington DC UFO Incident — Washington National Airport and the Radar Infrastructure: