Summary: During the night of 30-31 March, 1990, many reports were received by the police from members of the public of a phenomenon in the sky above Wavre, twelve miles south of Brussels.
During the night of 30-31 March, 1990, many reports were received by the police from members of the public of a phenomenon in the sky above Wavre, twelve miles south of Brussels. This resulted in many telephone calls from the police to the radar station at Glons near Tongeren for ratification.
Glons radar confirmed the sighting of an unidentified object at an altitude of 3,000 meters. Semmerzake radar confirmed the Glons detection and passed its confirmation onto the Air Force. The radar scans were compared with the previous Eupen radar sightings (see Eupen Case) by Semmerzake and Glons and were found to be identical.
Several police patrols had witnessed the same phenomenon before. It was a massive triangular shape with the same lighting configuration as seen at Eupen four months earlier.
Colonel Wilfred De Brouwer, Chief of the operations section of the Air Force, said:
"That because of the frequency or requests for radar confirmation at Glons and Semmerzake - and as a number of private visual observations had been confirmed by the police - it was decided that as these parameters had been met, a patrol of F-16 aircraft should be sent to intercept an unidentified object somewhere to the south of Brussels"
As a consequence, two F-16 aircraft of the Belgian Air Force - registration numbers 349 and 350 = flown by a Captain and a Flight-Lieutenant, both highly qualified pilots, took off from Bevekom.
Within a few minutes - guided by the Glons radar - both pilots had detected a positive oval-shaped object on their on-board radar at a height of 3,000 meters, but in the darkness saw nothing. This oval configuration, however, caused the pilots some concern. It reacted in an intelligent and disturbing way when they attempted to 'lock-on' with their on-board radar.
Changing shape instantly, it assumed a distinct 'diamond image' on their radar screens and - increasing its speed to 1,000lm/h - took immediate and violent evasive action.
Photographs of the actual on-board radar of the F-16s recorded a descent of this object from 3,000m to 1,200 in 2 seconds, a descent rate of 1,800km/h. The same photographs show an unbelievable acceleration rate of 280km/h to 1,800km/h in a few seconds. According to Professor Leon Brening - a non-linear dynamic theorist at the Free University of Brussels - this would represent an acceleration of 46g and would be beyond the possibility of any human pilot to endure.
It was noted that in spite of these speeds and acceleration times there was a marked absence of any sonic boom. The movements of this object were described by the pilots and radar operators as 'wildly erratic and step-like', and a zigzag course was taken over the city of Brussels with the two F-16s in pursuit. Visual contact was not possible against the lighting of the city.
This same procedure was repeated several times, with this object - whenever an attempt at radar 'lock-on' was made - pursuing a violently erratic course at impossible speed and losing its pursuers.
Some in Summary:
1) Object witnessed at Eupen, Wavre, Leige and Brussels
2) Reported in over 2,600 statements to police
3) Photographed by many people on both Video and Camera
4) Detected and Confirmed by radar stations on the ground
5) Detected, Confirmed and photographed on aircraft radar screens
6) Pursued for over an hour by two F-16s.
Colonel De Brouwer added "Immediatley after the operation, the pilots said they had never seen anything like it. Certainly the flight pattern and echo on their screens was in no way that of a conventional aircraft"
The Belgian Minister of Defence in the Belgian parliament stated that "The Government did not know what they were".