A small Unmanned Aircraft (UA) and its associated elements, including communications links and the components that control the small UA, that are required for the safe and efficient operation of the small UA in. the national Airspace System (NAS). To reiterate, the difference between the Small Unmanned Aircraft and the Small Unmanned Aircraft System is simply that the system in the aircraft PLUS all the other equipment and components, such as the remote controller/transmitter.