HOMEINCIDENTSDoD-B21-016
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DoD-B21-016 · 1952-07-29

Project Blue Book — Continental Air Defense Intercepts 1952

DoDMultiple US air defense zonesNorth America#1952Orb / Sphere10000–50000 ftSummer 1952 — multiple weeks
EVIDENCE GALLERY

Visual reconstruction and recovered media extracted from the incident dossier. This case includes still evidence and analytical reconstruction.

Representative official gallery image traced to an official public-source archive

MEDIA STATUS
Official gallery media is shown as representative archive context for this case.
SOURCE TYPE
Witness testimony, radar language, and dossier reconstruction.
VIEW MODE
Still view highlights silhouette, environment, and encounter geometry.
AT A GLANCE

The summer of 1952 saw an extraordinary wave of UAP events across the continental United States that overwhelmed the Air Defense Command and forced General Nathan Twining to brief the CIA director on the phenomenon. Between July 1 and July 31 alone, Project Blue Book logged 536 reports — the highest monthly total in its history. ADC scrambled jet interceptors on at least 23 occasions. The wave culminated in the Washington DC overflights. CIA director Walter Bedell Smith requested an intelligence evaluation. This led directly to the Robertson Panel.

PRIMARY WITNESSES
Continental Air Defense Command radar operators, interceptor pilots across US
EVIDENCE PROFILE
VISUAL RECONSTRUCTIONORB / SPHERE
FILE ID
DoD-B21-016
DATE
1952-07-29
AGENCY
DoD
REGION
North America
SHAPE
Orb / Sphere
ALTITUDE
10000–50000 ft
OBSERVED BEHAVIORS
Rapid AccelerationStationary HoverSensor Interference
DECLASSIFIED DETAILS

The summer of 1952 represented the peak crisis period of the early UFO era for the US government. Beginning in June and accelerating through July, the Continental Air Defense Command was overwhelmed with reports of unidentified objects performing maneuvers in restricted airspace across the United States. Project Blue Book logged 536 reports in July 1952 alone — more than the previous entire year. The Air Defense Command scrambled jet interceptors — primarily F-94 Starfires and F-86 Sabres — on at least 23 documented occasions. Pilots confirmed visual and radar contacts. Multiple reports described objects outrunning the interceptors or disappearing vertically at speeds beyond the capability of any known aircraft. The wave culminated in the Washington DC overflights of July 19-20 and July 26-27, during which objects were tracked on multiple civilian and military radar systems over the nation's capital. General Nathan Twining briefed CIA director Walter Bedell Smith on the phenomenon. Smith requested a formal intelligence evaluation, which led to the establishment of the Robertson Panel — a CIA-sponsored scientific review convened in January 1953. The Robertson Panel recommended a public education campaign to debunk UAP reports and reduce their strategic significance. This recommendation effectively set US UAP policy for the next two decades, prioritizing public impression management over investigation.

KEY CHARACTERISTICS
  • 536 reports in July 1952 alone — Project Blue Book's highest monthly total
  • ADC scrambled jet interceptors 23+ documented occasions that summer
  • CIA director personally briefed — unprecedented elevation to intelligence community
  • Led directly to Robertson Panel and CIA debunking policy that shaped US UAP response for 20 years
  • Pilots confirmed visual contact with objects outrunning F-94 and F-86 interceptors
  • Wave culminated in Washington DC overflights tracked on multiple independent radar systems
ORIGINAL SOURCE

This incident is indexed as file DoD-B21-016inside Now Declassified's research layer. The nearest official source trail for this agency points to NARA RG 615 / OSD, where archive records, imagery, or supporting context are published for public review.

OPEN OFFICIAL SOURCE CONTEXT →
EVIDENCE STRENGTH
MODERATE
Video Record
0
Still Imagery
0
Witness Credibility
20
Sensor Corroboration
20
Physical Evidence
0
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RESEARCHER DISCUSSION

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