In 1978 both the Advanced- and Transition Flying School of the Belgian Air Force were  based at the airbase of Brustem/Sint Truiden; this base is now closed by the way. The AFS was equipped with the Potez-Fouga CM-170 Magister, the TFS with Lockheed T-33As.  Both types were replaced by the Alpha Jet in the early eighties and the location for the flying training was moved to France.