Core Points - The East China Air Traffic Management Bureau has successfully launched the full-function C-class transfer capability, marking a new phase of digital, efficient, and intelligent air traffic control in the Yangtze River Delta region [1][2] - The C-class transfer function is a self-developed system that enables millisecond-level synchronization of key flight plan information, significantly improving safety and coordination efficiency [1][2] Group 1 - The air traffic environment in East China is complex with high flight density, necessitating the transition from traditional manual transfer methods to a more efficient electronic system [1] - The C-class transfer function was developed to address the limitations of traditional communication methods, enhancing information transfer efficiency and reducing operational risks [1][2] Group 2 - During a five-month testing period, the East China Air Traffic Management Bureau conducted extensive system pressure tests and parameter optimizations to ensure the system's readiness for launch [2] - The transition to the C-class transfer function has alleviated the workload of air traffic controllers and improved the operational efficiency and safety of air routes in the Yangtze River Delta region [2]