This arrangement continued until June 1988 when the 10th Tactical Reconnaissance Wing at RAF Alconbury became a Tactical Fighter Wing, and two of the 81st TFW squadrons, the 509th and 511th Tactical Fighter Squadrons were transferred there on 1 June and 1 September, respectively. With the transfer of the A-10s to Alconbury, the 527th Aggressor Squadron was transferred to Bentwaters. The mission of the 527th was to provide dissimilar air combat training for NATO pilots, using Soviet tactics. The squadron flew the Northrop F-5 Freedom Fighter at Alconbury, however after 12 years of intense flying, by 1988 the fleet of aggressor F-5Es was getting rather worn out as a result of sustained exposure to the rigors of air combat maneuvering. It was decided to re-equip the squadron with General Dynamics F-16C Fighting Falcons when the squadron was assigned to Bentwaters.