Chinese first know the unmanned aerial vehicle (uav) that time is not too late. In the last century 60-70s the United States has repeatedly with “bee” fire even D21 high-speed high-altitude uav reconnaissance China’s airspace, annihilates-6 fighter jets shot down in a heap. Military museums and aviation museums now display the wreckage of many unmanned aerial vehicles. These advanced unmanned aerial vehicles have made a valuable reference for the development of unmanned aerial vehicles in China.
