UFOMYST
CaseTriangle1991

Dover (near), DE, USA

1991 dover delaware. triangular craft

Report quality: Moderate48/100

This score reflects report-quality signals on file — how complete, corroborated, and precisely located the report is — not a claim about whether the sighting was a real craft.

  • Duration parsed: 12600s, a plausible sighting length
  • Brief witness text (37 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
1991-06-20
Where
Dover (near), DE, USA
Shape
Triangle
Duration
3-4 hours
Geo
39.158, -75.524 · exact
Slug
triangle-over-dover-near-de-1991-aab569
Wave

Part of a wave

  • Historical wave1989–1991

    The Belgian Triangle Wave

    Belgium (Eupen, Wallonia, Brussels corridor)

    The definitive black-triangle wave: silent, slow platforms with three corner lights, reported by gendarmes, air-traffic controllers, and thousands of citizens. On the night of March 30-31, 1990, Belgian F-16s scrambled…

    Open wave →

In context

  • Dover (near), DE has 1 sightings on file here.
  • 1991 brought 1 reports from Delaware.
  • The 1990s skewed 11.6% triangle reports; the archive-wide figure is 9%.

Report

Full narrative lands with dossier import for famous cases, or the NUFORC free-text summary above for standard reports. This shell is SSR-ready: one D1 row (including connections_json) per page.