Foreign media: China's plasma propulsion technology is expected to double the efficiency of high-altitude drones. Chinese scientists have made a significant breakthrough in wind tunnel experiments, greatly improving the aerodynamic performance of high-altitude drones using plasma excitation technology. The study shows that plasma generated by high-voltage current can increase the lift-to-drag ratio of wings by nearly 88%, meaning a significant enhancement in flight efficiency. This achievement was proposed by Zhang Xin's (translated name) team from the China Aerodynamics Research and Development Center (CARDC), with relevant papers published in China's top journal "Journal of Theoretical and Applied Mechanics." CARDC, located in Mianyang, Sichuan, has world-leading large-scale wind tunnel facilities. The research indicates that this technology is expected to extend the time aloft for high-altitude long-endurance (HALE) drones. Currently, advanced drones such as the U.S. military's RQ-4 "Global Hawk" and China's "Rainbow-9" can fly at an altitude of about 10,000 meters for approximately 40 hours, but scientists believe that combining plasma technology could further enhance their endurance. Original article: https://www.toutiao.com/article/1832379005055114/ Disclaimer: This article only represents the views of the author.