自主研制！完成生产试飞！

Core Points - The AG600 "Kunlong" amphibious aircraft has successfully completed the assembly and production test flight of its third unit, marking a significant milestone in the project from type certification to small-scale production [2][4] - The AG600 is China's first independently developed large special-purpose aircraft designed to meet urgent needs for forest firefighting and water rescue, and it is the largest civil amphibious aircraft in the world by takeoff weight [4] Summary by Categories Production Milestones - The third unit (1103) of the AG600 has been assembled and has successfully completed its production test flight [2] - The fourth unit (1105) has had its major components delivered to the China Aviation Industry Group's South China branch, indicating progress in the production line [2] Project Significance - The AG600 project represents a critical advancement in China's capabilities for specialized aircraft, particularly for emergency response in forest fires and water rescues [4] - The aircraft's development underscores China's commitment to enhancing its aviation technology and meeting domestic needs for disaster management [4]