Group 1 - Since the beginning of the 14th Five-Year Plan, central enterprises have actively undertaken major national scientific and technological tasks, with an average annual growth of R&D expenditure of approximately 6.5%, exceeding 1 trillion yuan for three consecutive years, effectively supporting steady national economic development [1] - The introduction of TRIZ theory has provided new ideas for overcoming the challenges in the monitoring precision of the oil metal debris monitoring module, which is crucial for the stable operation of aircraft engines [1] - The AEF1200 turbofan engine, which is close to 2 meters in diameter, is the first domestically developed high-bypass dual-rotor turbofan engine for large transport aircraft in China [1] Group 2 - The Y-20B aircraft equipped with a new domestic engine has improved range, payload, and speed, with the new high-bypass turbofan engine providing greater thrust and fuel efficiency [2] - Central enterprises are accelerating the layout of strategic emerging industries, with an average annual investment growth rate exceeding 20%, accumulating investments of 8.6 trillion yuan [2] - The China General Nuclear Power Group's Delingha 1 million kilowatt integrated solar thermal storage project has successfully connected 800,000 kilowatts of photovoltaic power generation to the grid, with the 200,000 kilowatt solar thermal storage power generation expected to officially commence production by the end of this year [2] Group 3 - During the 14th Five-Year period, the total assets of central enterprises increased from 68.8 trillion yuan at the end of the 13th Five-Year Plan to 91 trillion yuan by the end of 2024, with an average annual growth rate of 7.3% [3] - The quality of state-owned assets has improved, and the financial foundation has become stronger [3]

Core Viewpoint - The China Aviation Engine Group Co., Ltd. made its debut at the Air Force Aviation Open Day and Changchun Aviation Expo, showcasing several key products including the AEF1200 engine and the "Taihang" series engines [1] Group 1: Product Showcase - The company presented the AEF1200 engine, which is part of its advanced engine lineup [1] - The "Taihang" series engines were also highlighted, indicating the company's focus on high-performance aviation technology [1] - A 60-kilowatt hybrid power system was publicly displayed for the first time, featuring a turbojet hybrid system with a maximum power output of 80 kilowatts, aimed at eVTOL applications [1] Group 2: Market Focus - The hybrid power system is designed for extended-range eVTOL power supply pods and serves as the main power source for 1-ton class eVTOLs, reflecting the industry's shift towards innovative aerial mobility solutions [1]

Group 1 - The 2025 Air Force Aviation Open Event and Changchun Air Show has officially commenced, marking the largest and most comprehensive exhibition since 2019, with expected attendance exceeding 800,000 [1] - The exhibition utilizes the Changchun International Aviation Expo City for the first time, with a total area of 2.358 million square meters, doubling the size from the previous event [1] - Over a hundred types of active Air Force aircraft, ground equipment, and retired classic equipment will be showcased, including the debut of the AEF1200 engine and other star products from China Aviation Engine Corporation [1] Group 2 - The air show emphasizes audience participation and experience, featuring immersive experience zones such as simulated flights to provide a deeper understanding of the Air Force [2] - The Air Force has arranged several performance activities to highlight the effectiveness of practical training, with performances from teams like "August 1," "Red Eagle," and "Sky Wing" [2] - Open activities in military camps are scheduled to attract more audiences, especially youth, to engage with and learn about the Air Force [2]