RADI Quick Eye
Quick Eye UAVs are Chinese UAVs developed by Institute of Remote Sensing and Digital Earth (RADI, ) of Chinese Academy of Sciences via its wholly owned companies including Tianjin (ChinaRS, ) and Beijing NCG Information Technology Co., Ltd. (NCG, ). Most of these UAVs are intended for aerial photography, survey and remote sensing missions. Quick Eye I. Quick Eye I is a fixed wing UAV developed by RADI for aerial photography, survey and remote sensing missions, and it is the first member of Quick Eye series fixed wing UAV developed by RADI. Quick Eye I is in conventional layout with  high wing configuration and landing gear consists of a pair of skids. Propulsion is provided by a two-blade driven tractor engine mounted in the nose. Specification: Quick Eye II. Quick Eye II is a fixed wing UAV developed by RADI in twin boom layout with high wing configuration and tricycle landing gear. Propulsion is provided by a two-blade propeller driven pusher engine mounted at the rear end of the fuselage. The performance and size of Quick Eye II is same as that of Quick Eye I, despite having different layout, so that storage space and associated equipment for  Quick Eye I can be readily used for Quick Eye II without any modification, resulting in lower maintenance and operational cost. Specification: Quick Eye III. Quick Eye III is a fixed wing UAV developed by RADI in conventional layout with high wing configuration, and propeller is driven by a two-blade propeller driven tractor engine mounted in the nose. Quick Eye III is more streamlined than Quick Eye I. Quick Eye IV. Quick Eye IV is a twin engine UAV in twin boom layout with tricycle landing gear developed by RADI. Quick Eye IV share the identical airframe of five  other Chinese twin engine UAVs: Iflyer Hunter, RADI IRSA IV, Oriental Titan Titan III, UAV Sci-Tech Telemetry IV and ZWYX YX-3, so that all six Chinese UAVs have identical appearance. What differs them from each other is that their respective flight control systems (FCS) are completely different from each other, being separately developed their respective developers independently. Quick Eye IV has a pair of two-blade driven propeller engines respectively mounted at the nose and rearend of the fuselage. Specification: Star. Star UAV is the first micro air vehicle (MAV) developed by RADI, and it is an electrically powered  MAV designed to be launched by hand, and hence its official name is Star Electrically Powered Hand Launched UAV (Di-Li Qu-Dong Shou-Pao Wu-Ren-Ji ). Star is replaced by more advanced MAVs and is no longer marketed, and RADI has already removed its advertise from internet, but it still provides support for those currently still in service. One of the replacement of Star was the heavier Quick Eye I mentioned above. NCG-2. NCG-2 is a derivative of Quick Eye I produced by Beijing NCG Information Technology Co., Ltd. (NCG, ), a wholly own company of Institute of Remote  Sensing and Digital Earth (RADI, ) of Chinese Academy of Sciences. NCG-3. NCG-2 is a derivative of Quick Eye III produced by Beijing NCG Information Technology Co., Ltd. (NCG, ), a wholly own company of Institute of Remote Sensing and Digital Earth (RADI, ) of Chinese Academy of Sciences.