The Armstrong Flight Research Center, located inside Edwards Air Force Base, is an aeronautical research center operated by NASA. It was originally named in honor of Hugh L. Dryden, a prominent aeronautical engineer who at the time of his death in 1965 was NASA's deputy administrator, and it is still variously known as Dryden or the Dryden Flight Research Center (DFRC) while the details of the name change are decided (Name changed to AFRC went into effect on March 1, 2014). First known as the National Advisory Committee for Aeronautics Muroc Flight Test Unit, the DFRC has also been known as the High-Speed Flight Research Station (1949) and the High-Speed Flight Station (1954). The facility was renamed, effective March 1, 2014, the Armstrong Flight Research Center in honor of Neil Armstrong, the first human being to walk on the surface of the moon. Similarly the Western Aeronautical Test Range at the facility was renamed the NASA Hugh L.