US Testing the World’s Largest $200 Million Drone : Meet the RQ-4 UAV

Northrop Grumman RQ-4 Global Hawk

A new documentary video about the US AirForce Northrop Grumman RQ-4 Global Hawk + the General Atomics MQ-9 Reaper and General Atomics MQ-1 Predator
 
Credit to : The Daily Aviation