سانچہ:/Featured robot/5

The Northrop Grumman RQ-4 Global Hawk is an unmanned aerial vehicle (UAV) used by the US Air Force as a surveillance aircraft. In role and design, it is somewhat similar to the Lockheed U-2, the venerable 1950s spy plane. It is a theater commander's asset to both provide a broad overview and systematically target surveillance shortfalls. The Global Hawk air vehicle is able to provide high resolution Synthetic Aperture Radar (SAR)—that can penetrate cloud-cover and sandstorms—and Electro-Optical/Infrared (EO/IR) imagery at long range with long loiter times over target areas. It can survey as much as 100,000 square kilometers (40,000 square miles) of terrain a day.

The Global Hawk is the first UAV to be certified by the FAA to file its own flight plans and use civilian air corridors in the ریاستہائے متحدہ امریکا with no advance notice. This potentially paves the way for a revolution in unmanned flight, including that of automatically piloted passenger airliners.