The Global Hawk drone is a high-altitude high-speed unmanned reconnaissance aircraft developed by Northrop Grumman. &; Quot; Global Hawk &; Quot; The appearance is extraordinary. It looks like a killer whale. It has a large body, straight wings, and a wingspan that exceeds that of a Boeing 737 passenger aircraft. The spherical head hides a radar antenna with a diameter of 1.2 meters. &; Quot; Global Hawk &; Quot; The flight control system uses GPS and Inertial navigation systems to automatically complete the entire flight from take-off to landing. By using a satellite link, the UAV flight status data is automatically sent to the mission control unit.