1550th ATTW was responsible for all USAF advanced helicopter training. The unit also conducted fixed-wing rescue and recovery training in the HC-130 Hercules aircraft, as well as testing new helicopter systems and techniques. On 1 July 1977, the base once again changed hands as the 1606th Air Base Wing was created when Military Airlift Command (MAC) took over responsibility for operating Kirtland AFB from Air Force Systems Command. In the mid-1980s, the wing was equipped with a fleet of 32 aircraft, which included five HC-130 rescue transports, eight H-3 and seven H-53 heavy lift helicopters or "Jolly Green Giants," and six UH-1F and six UH-1N light lift helicopters or "Hueys." Flying training in the 1550th ATTW included basic aircraft qualifications, instrument and transition flying, aerial refueling of the Jolly Green Giant helicopters by HC-130 tankers, combat tactics, air drops of pararescue personnel and equipment, land-water helicopter hoist training, simulated search missions, and locating and intercepting lost or distressed aircraft. Initial training for all USAF Pararescuemen was also given at Kirtland. The training included classes in mountain climbing, survival, navigation, scuba-equipped parachute jumps, hoisting from a helicopter, emergency medicine, combat tactics, and weapons. In 1985, the wing graduated approximately 1,250 students from its 34 formal courses. Air Force Space Technology Center On 1 October 1982, the Air Force Space Technology Center (AFSTC) was established at Kirtland to coordinate and manage research into Air Force space systems. It was to plan and execute "Air Force R&D programs in space technology, advanced nonconventional weapons and weapons effects, rocket propulsion and geophysics". The AFSTC operated under the oversight of the Space Systems Division of Air Force Systems Command (AFSC), located at Los Angeles AFB. The AFSTC supervised the AFWL, the Air Force Rocket Propulsion Laboratory at Edwards AFB, California, and the Air Force Geophysics Laboratory at Hanscom AFB, Massachusetts. The announcement for the new center was made two days after Secretary of State Alexander Haig revealed that the Soviet Union had made practice runs with several space weapons, including one that could destroy U.S. satellites. The new AFSTC was responsible for military satellites, the anti-satellite program, military payloads orbited by Space Shuttles, the tracking of Soviet satellites, and other related programs. The militarily strategic value of space became a new focus for AFWL in the early 1980s. In March 1983, President Ronald Reagan announced a major research effort to determine the feasibility of advanced