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E-006339LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: exactRECORD COMPLETENESS: 100%

Four Airline Pilots Report Disc over Hanford

July 5, 1952Hanford atomic plant area, Washington, United States

Four Conner Airlines pilots reported a perfectly round white almost-transparent disc above the Hanford atomic plant, initially hovering and later tilting edge-on and departing rapidly.

// LINKED CLASSIFICATIONS:Disc / Saucer(C-000253)→Scientific & Observational Types(P-000101)→
Claims are displayed with the source wording, locator, relationship and verification state. Competing claims remain separate rather than being averaged into a single answer.
SOURCE COMPARISON

Encounter · Reported Encounter Observation

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CLAIM-689097reported
“Four pilots reported a perfectly round disc above the Hanford atomic plant, initially hovering, then backing away, tilting edge-on, accelerating and disappearing.”
The UFO Evidence
SRC-002107 · Hanford four-pilot disc report; uploaded PDF pp. 54-54
SUPPORTS
SOURCE COMPARISON

Hanford White Round Disc (1952) · Reported Craft Appearance

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CLAIM-689098reported
“Captain John Baldwin described the object as white, almost transparent, and accompanied by small vapor trails compared to octopus tentacles.”
The UFO Evidence
SRC-002107 · Hanford disc appearance; uploaded PDF pp. 54-54
SUPPORTS
SOURCE COMPARISON

Hall Pilots & Aviation Experts Dossier · Investigation Source Caveat

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CLAIM-689087reported
“Hall argues that airline and military pilots are unusually experienced sky observers because their work requires repeated exposure to weather, aircraft, meteors, planets, and aviation hazards.”
The UFO Evidence
SRC-002107 · Section opening: pilot experience and evidentiary rationale; uploaded PDF pp. 52-53
SUPPORTS
CLAIM-689088reported
“Hall groups pilot reports into three broad patterns: geometrical objects, maneuvering or gyrating lights, and cigar-shaped or rocket-like objects.”
The UFO Evidence
SRC-002107 · The Patterns: three pilot-report groupings; uploaded PDF pp. 53-53
SUPPORTS
Multiple claim rows are intentionally retained when sources disagree. ANOMALY does not silently reconcile competing values.
SOURCE COMPARISON

Hall Pilots & Aviation Experts Dossier · Government Policy Decision

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CLAIM-689089reported
“Hall notes that airline pilots were included in the CIRVIS vital-intelligence reporting system and cites 1954 meetings between airline representatives and MATS intelligence to speed reporting of unusual aerial objects.”
The UFO Evidence
SRC-002107 · CIRVIS / MATS reporting-system discussion; uploaded PDF pp. 52-53
SUPPORTS