Shape Analysis

Disc / Saucer UFO Sightings

14% OF ALL U.S. REPORTS — 122,983 SIGHTINGS ANALYZED

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14%
Share of all U.S. reports
~17,206
Estimated U.S. reports
All 50
States report this shape
1940s+
First documented reports

Overview

Disc and saucer reports represent 14% of categorized sightings and are among the most historically significant UAP shapes. The disc is the archetype of the modern UFO — the shape described in Kenneth Arnold's 1947 sighting and associated with the Roswell incident and decades of subsequent encounters.

Typical characteristics

Dome-topped disc or lenticular shape. Often described as metallic or chrome. Typically silent. Frequently reported in daylight, making it more subject to photographic documentation than many other shapes. Rotation often noted. Some reports describe landing legs or undercarriage. A luminous ring or rim is commonly described.

Notable cases and references

  • Kenneth Arnold 1947 near Mount Rainier — first flying saucer report
  • Roswell 1947 — disc-shaped object recovered (initial Army Air Force statement)
  • McMinnville Oregon photos 1950 — among most analyzed UAP photographs
  • Lonnie Zamora 1964 Socorro NM — police officer witnesses disc with landing legs (Blue Book: Unknown)
  • Kecksburg 1965 PA — acorn-shaped object recovered by military (Blue Book: Unknown)

Geographic patterns

Like all UAP shapes, disc / saucer reports are distributed across all U.S. states. The states with the highest absolute disc / saucer counts correlate broadly with overall sighting leaders: California, Florida, Washington, and New York. However, per-capita patterns may vary significantly by shape and by proximity to military installations or specific geographic features.

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Frequently asked questions

Disc or saucer-shaped UFOs are typically described as a circular or elliptical craft, often with a dome on top. They may be metallic, self-luminous, or both. The classic flying saucer popularized in the 1950s is consistent with this shape. Disc reports account for approximately 14% of categorized U.S. sightings.
The Kenneth Arnold sighting of June 24, 1947 is the event most associated with the disc/saucer shape — Arnold described nine crescent/saucer-shaped objects near Mount Rainier, coining the term flying saucer. The Roswell Incident of July 1947, in which the Army Air Force initially described recovering a disc, is also closely associated with this shape.
The prevalence of orb over disc reports may reflect the difficulty of discerning shape at distance, particularly at night. A disc at distance or in low light may appear as a bright light categorized as an orb. Disc reports tend to involve closer encounters or daytime observations where structural details can be perceived.
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