02 · LORE
551 FILES·LAST 1D AGO
United States1947-06-24civilian claim

Kenneth Arnold Sighting

On June 24, 1947, private pilot Kenneth Arnold reported nine crescent-shaped objects flying at roughly 1,200 mph near Mount Rainier, Washington, a credible sighting that introduced the term 'flying saucer' into public discourse and triggered the first formal USAF investigation program.

On June 24, 1947, private pilot Kenneth Arnold reported nine crescent-shaped objects flying at roughly 1,200 mph near Mount Rainier, Washington, a credible sighting that introduced the term 'flying saucer' into public discourse and triggered the first formal USAF investigation program.

Brief

On June 24, 1947, private pilot Kenneth Arnold reported nine crescent-shaped objects flying at roughly 1,200 mph near Mount Rainier, Washington, a credible sighting that introduced the term 'flying saucer' into public discourse and triggered the first formal USAF investigation program. Arnold timed the objects crossing the 47-mile gap between Mount Rainier and Mount Adams in 1 minute 42 seconds. The Air Force found him a credible witness but concluded mirage; Project Sign, launched six months later, treated the case as foundational.

Metadata

Date
1947-06-24
Year
1947
Location
Mount Rainier, Washington
Region
United States
Status
confirmed
Tag
civilian claim
Primary
PROJECT 1947. Kenneth Arnold firsthand account
Source type
catalogue
Sources
3

Key Points

  • On June 24, 1947, private pilot Kenneth Arnold reported nine crescent-shaped objects flying at roughly 1,200 mph near Mount Rainier, Washington, a credible sighting that introduced the term 'flying saucer' into public discourse and triggered the first formal USAF investigation program.
  • Arnold timed the objects crossing the 47-mile gap between Mount Rainier and Mount Adams in 1 minute 42 seconds.
  • The Air Force found him a credible witness but concluded mirage; Project Sign, launched six months later, treated the case as foundational.

Most Interesting

  • On June 24, 1947, private pilot Kenneth Arnold reported nine crescent-shaped objects flying at roughly 1,200 mph near Mount Rainier, Washington, a credible sighting that introduced the term 'flying saucer' into public discourse and triggered the first formal USAF investigation program.
  • Arnold timed the objects crossing the 47-mile gap between Mount Rainier and Mount Adams in 1 minute 42 seconds.
  • The Air Force found him a credible witness but concluded mirage; Project Sign, launched six months later, treated the case as foundational.

Timeline

  1. 1947-06-24 · Encounter

    On June 24, 1947, private pilot Kenneth Arnold reported nine crescent-shaped objects flying at roughly 1,200 mph near Mount Rainier, Washington, a credible sighting that introduced the term 'flying saucer' into public discourse and triggered the first formal USAF investigation program.

  2. 1947 · Source record

    PROJECT 1947. Kenneth Arnold firsthand account is the preferred source material attached to this encounter.

Sources

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