CASM CK-HW13
CASM CK-HW13 UAVs are Chinese UAVs developed by Beijing Ceke Spatial Info-tech Co., Ltd. (北京测科空间信息技术有限公司) of Chinese Academy of Surveying and Mapping (CASM, 中国测绘科学研究院), and many of which has entered service with Chinese law enforcement and governmental establishments. CK = Ce Ke (测科), a Chinese abbreviation of Ce-Hui Ke-Xue (测绘科学), which means Surveying and Mapping Science. CK-HW13 (gasoline-powered). CK-HW13 gasoline-powered UAV is an aerial survey UAV developed by CASM by utilizing (COTS) airframe produced by other domestic Chinese UAV manufacturers, which is integrated with domestic Chinese software indigenously developed  by CASM specially for aerial survey missions. CK-HW13 series UAV utilizes the same technologies applied to CK-GY series and is often marketed together with CK-GY series. CK-HW13 is designed to be deployed by a single person and it is in conventional layout with high wing configuration. Propulsion is provided by a two-blade propeller driven pusher engine mounted behind the wing that is elevated from the cylindrical shaped fuselage. Specification: CK-HW13 (battery-powered). CK-HW13 battery-powered UAV is the electrically powered cousin of the gasoline-powered CK-HW13. Like its gasoline-powered cousin, it  is also intended for aerial survey missions, and has the identical configuration and layout. What differs the electrically powered CK-HW13 from the gasoline-powered version besides the obvious difference in propulsion system is that the electrically powered version utilizes different material in its construction, namely, carbon fiber. Flight control systems are also different for the two versions. Specification: