高空长航时无人机的飞行时间多在24小时以上,其中飞行时间在12～20小时范围的约占6％左右,20～80小时范围的占62％,120小时以上的占31％左右;中空长航时无人机的飞行时间多在12小时以上,其中飞行时间在10～30小时范围的占93％左右,30～50小时范围的约占7％。欧洲有些国家认为,飞行时间大于16小时的无人机就可称作是长航时无人机。由于这种无人机的飞行时间特别长,常称为“大气层人造卫星”。 UAV flight time at high altitude more than 24 hours, of which flight time in the range of 12 to 20 hours accounted for about 6%, 20 to 80 hours accounted for 62% of the range, 120 hours or more accounted for about 31% The flight time of UAVs in long-haul flights was more than 12 hours, of which flight time was about 93% in the range of 10-30 hours and about 7% in the range of 30-50 hours. Some European countries think that an UAV flying more than 16 hours can be called a long-haul UAV. Due to the particularly long flight time of such unmanned aerial vehicles, it is often referred to as “satellites in the atmosphere.”