Aviation
| Tue 14 Apr 2026
Beijing, April 15 -- China North Unmanned Plane Research Institute has received a patent for Integrated Cooling System of Unmanned Helicopter. This invention was developed by Sa Rula, Hu Xiongwen, Xu Yuguo, Qi Zhigang, Xu Xinyu, Xiong Yunxiang, Liu Yonghui, Zhang Wenshang, Cui Qiannan, Bao Dongchen, Ding Nian, Li Xing, Li Kai, L..