The Belgian UFO Wave

The wave begins. Two gendarmes (Heinrich Nicoll and Hubert von Montigny) on routine patrol in Eupen report a large, silent, triangular object at low altitude with three bright lights. Over the following days, SOBEPS and media solicit additional reports. Eventually 143 people claim to have witnessed objects on this night, though all reports were filed after the fact, following media solicitation.

Reports spread. SOBEPS becomes the media's primary source on UFOs. The story is first broken by Grenz Echo reporter Heinz Godessart. SOBEPS investigator Auguste Meessen interviews the gendarmes and begins building the case. Additional sightings are reported across Belgium.

The wave continues. Hundreds of additional sightings are reported across Belgium, mostly of large, dark, triangular objects with lights underneath, flying at low altitude. Many reports are filed weeks or months after the events, prompted by media coverage and SOBEPS solicitation.

The peak night begins. The supervisor at the Control Reporting Center (CRC) at Glons receives reports of three unusual lights moving toward Thorembais-Gembloux, southeast of Brussels. Glons CRC requests the Wavre gendarmerie send a patrol to confirm the sighting.

A second set of lights is reported moving toward the first triangle. Traffic Center Control at Semmerzake tracks an object on radar. An order is given to scramble two F-16 fighters from Beauvechain Air Base.

F-16 intercept attempts. Over the next hour, two scrambled F-16s attempt nine separate interceptions. On three occasions, they obtain brief radar locks — later shown to be locks on each other (the other F-16). The pilots never visually see any objects. Other radar contacts are attributed to Bragg scattering (atmospheric interference / 'angel echoes'). Final confirmed radar lock at 00:40. F-16s return to base shortly after 01:00.

The Wavre gendarmerie patrol reports four lights in a square formation making jerky movements, which gradually dim and disappear in four separate directions. They also report a low engine noise and something resembling a stick with a turbine — suggesting a helicopter.

The Petit-Rechain photo is taken and released anonymously. The image of a black triangle with three lights becomes the most famous UFO photo of the wave, published in newspapers worldwide. It is examined by NASA, CNRS, and the Royal Military Academy, none of which can prove it is fake.

The wave gradually subsides. SOBEPS continues collecting reports, eventually totaling over 2,600 written sightings. The Belgian military releases a report on the March 30–31 intercept. General De Brouwer contacts US authorities, who confirm no stealth aircraft were operating in the area.

SOBEPS publishes 'Vague d'OVNI sur la Belgique' (Volume 1), documenting over 1,000 sightings and concluding the objects were genuine and likely extraterrestrial. Auguste Meessen is lead author.

Marc Hallet publishes 'La Vague OVNI Belge ou le triomphe de la désinformation,' the first major skeptical critique, arguing the wave was a mass delusion boosted by SOBEPS misinformation.

Pierre Magain and Marc Remy publish an article in Physicalia Magazine with conclusions that contradict SOBEPS, suggesting the wave should be studied by social scientists, not physicists.

SOBEPS publishes Volume 2 of 'Vague d'OVNI sur la Belgique,' incorporating findings from the classified Gilmard-Salmon report (obtained through professional channels). Meessen revises his radar analysis to acknowledge 'angel echoes.'

Renaud Leclet publishes 'The Belgian UFO Wave of 1989–1992: A Neglected Hypothesis,' arguing that many sightings were helicopters and that 'silence' claims could be explained by automobile noise and wind.

Leslie Kean publishes 'UFOs: Generals, Pilots, and Government Officials Go on the Record,' opening with General Wilfried De Brouwer's detailed account of the Belgian wave, bringing the case to a wide English-language audience.

Patrick Maréchal confesses on Belgian TV (RTL-TVI) that the Petit-Rechain photo was a hoax — a polystyrene triangle painted black with three flashlight bulbs, hung from a string. He demonstrates the construction and shows outtakes. Belgian UFO researchers who promoted the photo accept the confession.

Brian Dunning publishes the Skeptoid podcast episode 'The Belgian UFO Wave,' providing a comprehensive skeptical analysis that challenges the pro-UFO narrative, including that all three F-16 radar locks were on each other and that other contacts were Bragg scattering.

Jean-Michel Abrassart completes his PhD thesis at Université Catholique de Louvain on the psychosocial model of UFO phenomena, using the Belgian wave as a primary case study.