Shape Analysis

Triangle UFO Sightings

16% OF ALL U.S. REPORTS — 122,983 SIGHTINGS ANALYZED

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16%
Share of all U.S. reports
~19,664
Estimated U.S. reports
All 50
States report this shape
1940s+
First documented reports

Overview

Triangular and boomerang-shaped UFO reports represent 16% of categorized sightings and have been the subject of major documented waves including the Hudson Valley phenomenon of the 1980s and the Belgium UFO wave of 1989-1990, the latter of which was officially acknowledged by the Belgian Air Force.

Typical characteristics

Typically reported as large — often football-field size or larger. Completely or nearly silent. Three lights at corners, often with a central light. Slow-moving or hovering. Dark in color, visible against night sky by blocking stars. Reported at very low altitude. Witnesses consistently emphasize the object's size relative to conventional aircraft.

Notable cases and references

  • Hudson Valley Wave 1982-1986 — thousands of witnesses in New York and Connecticut
  • Belgium UFO Wave 1989-1990 — Belgian Air Force tracked on radar, scrambled F-16s, officially acknowledged
  • Phoenix Lights 1997 — V-shaped craft, thousands of witnesses across Arizona
  • Rendlesham Forest 1980 — metallic triangular craft, physical evidence
  • TR-3B speculation: some attribute triangles to classified USAF programs

Geographic patterns

Like all UAP shapes, triangle reports are distributed across all U.S. states. The states with the highest absolute triangle 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

Triangular UFO reports describe large, often massive V-shaped or delta-shaped craft with lights at each corner, moving silently at low altitude. Triangle reports represent approximately 16% of categorized U.S. sightings and have been associated with some of the most extensively documented mass-witness events in UAP history.
The TR-3B is a rumored classified U.S. aircraft said to use anti-gravity propulsion. No official acknowledgment of the TR-3B exists. Some researchers attribute triangular UAP reports to classified USAF programs, while others argue the reported characteristics — including extreme size, complete silence, and impossible acceleration — exceed any known classified program capabilities.
The Belgium UFO Wave of 1989-1990 was a sustained series of triangular craft sightings over Belgium that included Belgian Air Force F-16s scrambled to intercept targets tracked on radar. The Belgian Air Force publicly acknowledged tracking the objects and published radar data. It remains one of the few cases where a NATO government officially acknowledged UFO pursuit.
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