Belgian F-16 Radar Trace Charts — March 30–31, 1990 Eupen/Wavre Interception

Brief

On the night of March 30-31, 1990, Glons NATO Control Reporting Centre and Semmerzake ATC radar tracked unidentified targets over central Belgium; two F-16s scrambled from Beauvechain conducted nine interception attempts, achieving six onboard radar lock-ons at 5-8 nautical miles. The recorded traces show targets accelerating from roughly 150 km/h to over 1,100 km/h and executing altitude changes between 150 m and 3,000 m within seconds — performance the Belgian Air Force characterized, in its own words, as beyond the possibilities of existing technology. Chief of Operations Col. Wilfried De Brouwer declassified and presented the charts publicly at a press conference held at NATO headquarters in Evere, Brussels, on July 11, 1990. The artifact is an image-only GIF with no extractable text; the Meessen analysis (Astrosurf/Luxorion) and Jean-Pierre Petit's 1990 vector redrawings constitute the principal secondary reproductions of these plots.

Metadata

Agency

Belgian Air Force / Force Aérienne Belge (operations under Col. Wilfried De Brouwer)

Release

1990-07-11

Type

IMAGE • .gif

Length

8.5 K

Classification

UNCLASSIFIED

Tags

radar lock-on, extreme acceleration, low-altitude, Belgium, 1990, F-16 interception, Glons NATO CRC, Semmerzake ATC, Eupen, Wavre, Belgian Wave

Key points

• Two Belgian F-16s scrambled from Beauvechain conducted nine separate interception attempts across the night of March 30-31, 1990.
• F-16 onboard radars achieved six lock-ons at 5-8 nautical miles against the unidentified targets.
• Recorded radar traces show acceleration from approximately 150 km/h to over 1,100 km/h within seconds.
• Altitude changes between 150 m and 3,000 m were recorded within seconds, consistent with the extreme acceleration data.
• Both Glons NATO CRC and Semmerzake ATC ground radar independently tracked the targets, providing corroboration beyond the airborne sensor data.
• Col. De Brouwer presented the declassified charts at NATO headquarters in Evere, Brussels — institutional disclosure at the alliance level, not a national-only release.
• The Meessen analysis reproduces the official F-16 HUD radar plots; Patrick Gross archives Jean-Pierre Petit's 1990 vector redrawings of the same traces.

Most interesting

• The press conference was held at NATO headquarters in Evere, Brussels — making this one of the few UAP disclosures formally conducted at a NATO facility.
• The document is a GIF, likely a scanned or digitized version of the original paper radar chart distributed at the 1990 press conference.
• Jean-Pierre Petit, a French astrophysicist and MHD propulsion researcher, produced independent vector redrawings of the trace data in 1990 — the same year as the incident.
• Six radar lock-ons across nine interception attempts represents a 67% lock rate against targets the Belgian Air Force could not otherwise identify or intercept.
• The reported acceleration profile — 150 km/h to over 1,100 km/h within seconds — implies g-forces that would be fatal to a human pilot under conventional aerodynamics.
• The Belgian Wave of 1989-1990 is among the most thoroughly documented mass UAP events in European history, with military radar and gendarmerie corroboration across hundreds of reported sightings.