S77-28209 (13 Sept 1977) --- The shuttle orbiter 101 "Enterprise" lands on the desert at Edwards Air Force Base to conclude a five-minute, 31-second unpowered flight during the second free-flight of the Shuttle Approach and Landing Test (ALT) series, on September 13, 1977. Two T-38 chase planes remain with the "Enterprise" for the landing. Asstronauts Joe H. Engle, commander, and Richard H. Truly, pilot, were the crewmen for the flight.