China's homemade drone Rainbow-4 on display in Hangzhou

Rainbow-4, China's domestically designed and produced Unmanned Aerial Vehicle (UAV) on display at an intelligent transportation expo in Hangzhou, Zhejiang Province, on Friday, December 6, 2019. The Rainbow-4 is designed for use in intelligence gathering, electronic warfare, border patrol, island defence, and counter-terrorism missions. It has been exported to dozens of countries since its maiden flight in 2011. [Photo: VCG]