It also provided USAF fighter lead-in training from February 1974 – December 1976. In October 1977, the wing ended its "dual-base" commitment to NATO and changed to an air superiority mission with the wing beginning a conversion from the F-4D Phantom II to the F-15A Eagle; the 49th being the second USAF operational wing to receive the F-15A. Capt Thomas Vanderheyden was the initial pilot to start F-15 conversion. The transition was completed 4 June 1978. Due to the change in equipment, the annual NATO deployments were taken over by the 4th Tactical Fighter Wing, Seymour Johnson AFB, in 1978, however they resumed (although not on an annual basis) in 1981 when the 49th deployed to Ålborg AB, Denmark in August. NATO deployments to various bases in Western Europe ended in 1990. Training was refocused on dissimilar air combat tactics for multi-theater operations. History was made during February 1980, when two pilots from the 49th each flew their F-15s, in just over 14 hours, establishing a record for the longest flight of a single-seat fighter aircraft. Major "Stormy" Summers and Capt "Vmax" Vanderheyden had six aerial refuelings, proving the global power of the 49th Tactical Fighter Wing. In July 1980, the wing acquired the commitment of a primary Rapid Deployment Force unit. This tasking, which lasted for a year, required the wing to be ready to deploy its aircraft, crews, and support personnel on short notice. The wing served with the Rapid Deployment Force until July 1981, when the tasking was transferred to the 1st Tactical Fighter Wing, Langley Air Force Base, Virginia. The 49th won the 1988 William Tell air-to-air meet. The wing outdistanced the nearest competitor by more than 2,000 points. The 49th won a variety of awards, including the coveted "Top Gun" for best fighter pilot. It deployed aircraft and personnel to Southwest Asia to fly combat air patrol for coalition operations from 20 June – 19 December 1991. With the introduction of the F-15C Eagle in the mid-1980s, the upgraded Eagle began replacing the F-15A/Bs in service with all of the USAF units that had previously been operating the Eagle with the exception of the 49th TFW. By the time of Operation Desert Storm in 1991, the F-15A Eagles at Holloman had been relegated to a training role; combat deployments of the Eagle were the purview of F-15C units.