| A | B |
|---|
| Control station | an interface used by the remote pilot to control the flight path of the small unmanned aircraft. |
| Corrective lenses | spectacles or contact lenses. |
| Small unmanned aircraft | an unmanned aircraft weighing less than 55 pounds on takeoff, including everything that is on board or otherwise attached to the aircraft. |
| Small unmanned aircraft system | a small unmanned aircraft and its associated elements (including communication links and the components that control the small unmanned aircraft) that are required for the safe and efficient operation of the small unmanned aircraft in the national airspace system. |
| Unmanned aircraft | an aircraft operated without the possibility of direct human intervention from within or on the aircraft. |
| Visual observer | a person who is designated by the remote pilot in command to assist the remote pilot in command and the person manipulating the flight controls of the small UAS to see and avoid other air traffic or objects aloft or on the ground. |
| Aircraft | a device that is used or intended to be used for flight in the air. |
| Air traffic control | a service operated by appropriate authority to promote the safe, orderly, and expeditious flow of air traffic. |
| Pilot in command | the person who: 1.Has final authority and responsibility for the operation and safety of the flight; 2.Has been designated as pilot in command before or during the flight; 3.Holds the appropriate category, class, and type rating, if appropriate, for the conduct of the flight. |
