美国最新研制的“寰鹰”无人机在加里福尼亚首次公开亮相。该机是由特尔迪恩·瑞安航空公司研制的无人驾驶侦察机,已于1997年在加州爱德华空军基地试飞。该机续航时间为42小时,可为地面接收站提供大片侦察区实时图像。在2.16万米的高空作业,每天可侦察7.4万平方公里区域,可清晰拍到地面直径1米的物体。据说,该无人侦察机在执勤时,航程可达5559 The newly developed “Huanhaitou” UAV in the United States made its debut in California for the first time. The aircraft is a drone reconnaissance aircraft developed by Territor Ryanair and flew off at Edwards Air Force Base in California in 1997. The aircraft life of 42 hours, for the receiving station to provide large areas reconnaissance real-time images. At a height of 21,600 meters, it can detect 74,000 square kilometers of area every day, and it can clearly pick objects with a diameter of 1 meter on the ground. It is said that the unmanned reconnaissance aircraft on duty, the voyage up to 5559