The Northrop Grumman RQ-4 Global Hawk is the world’s largest unmanned aerial vehicle (UAV) or drone. It is mainly used for surveillance together with tin remain aloft for to a greater extent than than 32 hours without needing to land. In a twenty-four hr catamenia it tin survey equally much equally 1 lakh foursquare km of terrain.
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» How long do mechanical engineers go to school: Largest Unmanned Aerial Vehicle (Uav): Rq-4 Global Hawk