刚才玩了下FSX的UFO追击任务..失败告终..

RCtech

Area 51 is a remote tract of land in the southwestern portion of Lincoln County in southern Nevada in the western United States. Situated at its center, on the southern shore of a large salt lake, is a large military airfield, one of the most secretive places in the world. The base's primary purpose is to support development and testing of new military aircraft and to analyse foreign aircraft and weapons systems.