The Belgian Triangles, 1989–1990, and the F-16 Night
From November 1989 into spring 1990 thousands of Belgians reported dark triangles with lights. On the night of 30–31 March 1990 the air force scrambled two F-16s after ground radars and gendarmes reported the same lights. The jets got brief radar locks and saw nothing.
Sources Belgian Air Force, Maj. P. Lambrechts, 'Report concerning the observation of UFOs in the night from March 30 to March 31, 1990' (English translation); Col. Wilfried De Brouwer press conference, 11 Jul 1990; Prof. Auguste Meessen, study of the F-16 radar recordings (meessen.net); Wikipedia, 'Belgian UFO wave'
On 29 November 1989 gendarmes near Eupen in eastern Belgium reported a large dark triangle with lights underneath. Over the next months thousands of reports followed, and a civilian group, SOBEPS, collected them with unusual cooperation from the Belgian Air Force.
The F-16 night
The official record centres on 30–31 March 1990. A gendarme near Ramillies phoned in three bright, colour-changing lights in a triangle. The air-defence centre at Glons and the radar at Semmerzake both picked up a contact in the area. At 00:05 two F-16s took off. According to the air force report by Major Lambrechts, they made nine interception attempts in under an hour and locked on three times for a few seconds, with the target seeming to jump in speed and altitude. The pilots never saw anything. At a July 1990 press conference Colonel Wilfried De Brouwer showed the radar charts and said the air force could not determine what the object was.
The other side
Later analysis argued the radar behaviour came from processing artefacts and weather returns, and that the ground “lights” were stars. Physicist Auguste Meessen, who studied the recordings, rejected some of those explanations. The best-known photo of the wave, taken at Petit-Rechain, was admitted to be a hoax in 2011.
Ledger status
Marked disputed. An air force openly published what it recorded and couldn’t explain; the strongest radar data have a credible instrumental reading.
Sources
- Belgian Air Force, Lambrechts report on 30–31 March 1990 (English translation, PDF) — das-ufo-phaenomen.de
- Auguste Meessen, “Étude approfondie des mystérieux enregistrements radar des F-16” — meessen.net
- Wikipedia, “Belgian UFO wave” — en.wikipedia.org
Part of the World Ledger, batch 1. Original text; no images are used.
Evidence ledger
Each claim in this file, the source it rests on, and how well it holds up: 3 corroborated · 1 disputed · 1 debunked. What the labels mean.
| Claim | Source | Type · date | Status |
|---|---|---|---|
| A wave of triangle sightings ran in Belgium from 29 Nov 1989 to about April 1990. | Wikipedia; Belgian Air Force report | secondary | corroborated |
| On 30–31 Mar 1990 gendarmes reported lights near Wavre and two military radars (Glons, Semmerzake) logged a contact. | Lambrechts report, Belgian Air Force | official · 1990 | corroborated |
| Two F-16s made nine interception attempts and got brief radar locks but never saw the object. | Lambrechts report | official · 1990 | corroborated |
| The radar target changed speed from about 150 to 970 knots in seconds.Later analysts attribute the jumps to radar processing artefacts and weather returns; Meessen disputed parts of that. | Lambrechts report (F-16 lock at 00:13) | official · 1990 | disputed |
| A famous 1990 photo of a triangle (Petit-Rechain) shows the craft.The photographer said in 2011 it was a hoax made with polystyrene. | Popular accounts | secondary | debunked |
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