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E-006510LANDMARK CASE · HIGH CORROBORATIONDATE PRECISION: seasonRECORD COMPLETENESS: 100%

Yaak Radar Station Six-Target Maneuver Case

Summer 1953Yaak radar site, Montana, United States

S/Sgt. William Kelly described six unidentified radar targets repeatedly making abrupt direction changes; observers later reported visual formation changes and additional radar measurements including rapid climbs.

// LINKED CLASSIFICATIONS: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-693120reported
“S/Sgt. William Kelly described six unidentified radar targets repeatedly making abrupt direction changes; observers later reported visual formation changes and additional radar measurements including rapid climbs.”
The UFO Evidence
SRC-002107 · Radar UFO Sightings: Yaak Radar Station Six-Target Maneuver Case; uploaded PDF pp. 152-153
SUPPORTS
SOURCE COMPARISON

Encounter · Investigation Source Caveat

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CLAIM-693121reported
“Retrospective radar-operator account. Reported speeds and maneuvers should not be treated as independently reconstructed trajectories without the original plots/logs.”
The UFO Evidence
SRC-002107 · Radar UFO Sightings: evidential caveat for Yaak Radar Station Six-Target Maneuver Case; uploaded PDF pp. 152-153
SUPPORTS
SOURCE COMPARISON

Hall Radar Evidence Dossier · Hall Phase 05 Special-Evidence Analysis

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CLAIM-693007reported
“Hall distinguishes diffuse/intermittent meteorological radar returns, sharp persistent targets resembling solid objects, and slow-moving radar “angels,” and argues that specialized radar patterns require case-specific analysis.”
The UFO Evidence
SRC-002107 · Radar theory and target-type discussion; uploaded PDF pp. 142-148
SUPPORTS
CLAIM-693008reported
“Hall considers simultaneous radar-visual cases stronger than radar-only cases because two modes of observation can constrain explanations.”
The UFO Evidence
SRC-002107 · Radar-visual evidential framework; uploaded PDF pp. 142-148
SUPPORTS
Multiple claim rows are intentionally retained when sources disagree. ANOMALY does not silently reconcile competing values.