Group 1 - The China Aviation Engine Group (China航发) showcased multiple new products at the 2025 Air Force Aviation Open Day and Changchun Aviation Expo, including the F918 turbofan engine and a 60 kW hybrid power system, marking their global debut [1] - The F918 turbofan engine has a thrust of 2000 kg and can reach a maximum flight altitude of 20 kilometers, primarily designed for high-altitude, high-speed reconnaissance and strike drones, as well as business jets [1] - The 60 kW hybrid power system is a turbojet hybrid power system aimed at powering range-extended eVTOL (electric vertical takeoff and landing) aircraft, targeting both domestic and international markets to support low-altitude economic development [1] Group 2 - The AEF1200 turbofan engine, China's first large bypass ratio dual-rotor turbofan engine, was also displayed, featuring a full-authority digital control system and a health management system [2] - The "Taihang" engine series, which has been developed and mass-produced in China, has undergone significant technological upgrades in performance, reliability, safety, and stealth capabilities, enhancing aircraft survivability and combat effectiveness [2] - The exhibition included an interactive area for public education on aviation engines, combining explanations with hands-on activities to increase knowledge about the technology [2]