Project Feiyun (飞云工程), under which a class of high-endurance, high-altitude, solar-powered UAVs will be developed. These UAVs will be cruising in the stratosphere and can persist for weeks at a time. They are intended for providing emergency communications and networking, weather monitoring, and remote sensing and survey, among other tasks.
Technology demonstration flights have already been successfully completed for wide-area communications/networking function under the 13th Five-Year Plan (2016-2020). In the current 14th Five-Year Plan, the UAVs will be further refined and improved to achieve the targeted endurance of weeks.
Specs on the UAV:
Length: 8.6m
Wingspan: 27m
Mission altitude: 20km
Mission payload: 30kg
Network coverage area: 200km (radius? diameter?)
Mission power supply: 300 Watt
The scale model on display is 1:13.