Aviation Maintenance Terms beginning with U
Unmanned aircraft
An aircraft operated without the possibility of direct human intervention from within or on the aircraft.
Unmanned aircraft system
An unmanned aircraft and its associated elements (including communication links and the components that control the unmanned aircraft) that are required for the safe and efficient operation of the unmanned aircraft in the airspace of the United States.
Restrict the list to specific handbooks by clicking on the menubar at the top of the screen.