Aircraft means any machine that can derive support in the atmosphere from the reactions of the air other than the reactions of the air against the earth’s surface;
Unmanned aircraft means any aircraft operating or designed to operate autonomously or to be piloted remotely without a pilot on board;
Propeller means for a device for propelling an aircraft that has blades on a powerplant driven shaft and that, when rotated, produces by its action on the air, a thrust approximately perpendicular to its plane of rotation and it includes control components normally supplied by its manufacturer, but does not include main and auxiliary rotors or rotating airfoils of powerplants;
New Aircraft Has the meaning specified in the Note Purchase Agreement.
Unmanned aircraft system means an unmanned aircraft and associated elements, including communication links and components that control the unmanned aircraft that are required for the pilot in command to operate safely and efficiently in the national airspace system.