A state-owned Chinese aerospace company unveiled the military drone it says can stay aloft for up to 20 hours at altitudes as high as 15,000 meters (50,000 feet) at the opening Monday of the country's biggest air show.
13th China International Aviation & Aerospace Exhibition
A state-owned Chinese aerospace company unveiled the military drone it says can stay aloft for up to 20 hours at altitudes as high as 15,000 meters (50,000 feet) at the opening Monday of the country's

13th China International Aviation & Aerospace Exhibition
13th China International Aviation & Aerospace Exhibition

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