Group 1 - The A-share market experienced slight adjustments on June 17, with the military industry sector showing significant movements, particularly the aerospace ETF (159227) which briefly turned positive, highlighting stocks like Zhongbing Hongjian, AVIC Shenyang Aircraft, Guobo Electronics, and Great Wall Military [1] - The 55th Paris Air Show, held from June 16 to 22, showcased China's aviation industry, featuring military aircraft such as the J-20, J-35A, J-10CE, Y-20, Z-20, and Z-10ME, indicating a strong ambition for transformation from a technology follower to a leader in the field, which may boost China's military trade [1] - The aerospace ETF (159227) closely tracks the National Aerospace Index, leading in scale among similar indices, with the defense and military industry accounting for 96.2% of the index, indicating a higher concentration in aerospace and defense equipment compared to other indices [1] Group 2 - According to AVIC Securities, themes such as low-altitude economy, commercial aerospace, deep-sea technology, large aircraft, and military intelligence have been highly active since the beginning of the year, suggesting that these new military domains will continue to deepen and evolve [2] - The military industry's fundamentals are expected to improve continuously, with active themes and performance boosts likely to drive the overall military market in the near future [2]

Economic Overview - China's economic share of US GDP has decreased from nearly 80% to over 60%, indicating challenges in surpassing the US in total economic size [1] - The US has maintained an average economic growth rate of over 2% in recent years, with GDP increasing from $20 trillion in 2018 to $27.72 trillion in 2023 [3] - Factors such as the US-China trade war and Federal Reserve interest rate hikes have negatively impacted China's economy, leading to a depreciation of the RMB and widening the nominal GDP gap with the US [5] Military Comparison - The Chinese military has completed reforms and now possesses several advanced heavy and medium combined brigades, while the US Army has fewer combined units due to a focus on counterinsurgency warfare [7] - In naval capabilities, while the US Navy has an advantage in nuclear-powered aircraft carriers, China's naval advancements, such as the Fujian aircraft carrier with electromagnetic catapults, show significant progress [9][10] - China's naval fleet is expanding rapidly, with the potential to surpass the US in numbers, as the US's Nimitz-class carriers approach retirement [12] - In the air force sector, China's J-20 is in large-scale production, while the US's F-22 production has ceased, indicating a potential shift in air superiority [12]

Core Viewpoint - The article highlights the significant advancements in China's aircraft strength research and verification over the past 60 years, emphasizing its critical role in ensuring the safety and performance of domestic aircraft like the C919 and AG600 [3][4][8]. Group 1: Development History - The strength research institute was established during the "Third Line Construction" period in 1964, marking a pivotal shift in China's aviation industry from repair to manufacturing and design [4][6]. - The first full-scale destruction test of the H-6 aircraft in 1968 demonstrated China's capability for large aircraft strength verification, marking a new phase in the country's aviation strength research [4][6]. - Over the past six decades, the institute has evolved from a single focus on strength testing to a multi-faceted approach that includes manuals, guidelines, standards, and tools [8]. Group 2: Testing Capabilities - The institute has developed a "building block" testing capability system that includes full-scale static, fatigue, and ground vibration tests, ensuring comprehensive validation of aircraft structures [6][7]. - It has completed hundreds of full-scale tests and thousands of large component tests, supporting the development of key aircraft such as the J-20, Y-20, C919, and AG600 [8]. Group 3: Climate Environment Laboratory - After 15 years of research, the institute established a climate environment laboratory that is internationally leading, capable of simulating extreme weather conditions for aircraft testing [9][10]. - This laboratory can recreate 12 types of extreme climate conditions, significantly enhancing the testing capabilities for aircraft adaptability [10][11]. Group 4: Software Development - The institute has developed the SABRE structural analysis software system, which supports various engineering and structural strength needs, breaking the reliance on foreign software [12]. - This software has been applied across multiple industries and has resolved numerous challenges in aircraft development [12]. Group 5: AG600 Aircraft Development - The AG600 amphibious aircraft, designed for both land and water operations, received its type certificate from the Civil Aviation Administration of China, marking a significant achievement in its development [16][19]. - The strength institute played a crucial role in verifying the structural integrity of the AG600, addressing unique challenges posed by its dual-environment functionality [19][20].

Core Insights - The "Aviation Science Popularization Exhibition" launched by Guangdong Science Center and China Science and Technology Museum aims to enhance public understanding of China's aviation technology development [1][3] - The exhibition showcases over a century of China's aviation industry evolution, highlighting its contributions to national security, economic development, and public welfare [3] Group 1 - The exhibition features a variety of exhibits including images, classic aircraft models, and flight simulation experiences [3] - It narrates the historical journey of China's aviation industry from its inception to its current advancements, including significant milestones such as the first domestically produced aircraft "Fengru 1" and the development of key military aircraft like J-20 and Z-20 [3] - The exhibition is divided into three thematic sections: "Striving for National Salvation," "Contributions to the Nation," and "A Strong Nation in the Sky," providing a comprehensive overview of the industry’s history [3] Group 2 - The exhibition aims to engage the public, especially the youth, by showcasing the achievements of the aviation sector over the past 70 years and promoting the spirit of patriotism represented by various aviation achievements [3] - In conjunction with the exhibition, Guangdong Science Center has launched a series of fun science challenges and new science films to further engage the public in scientific exploration [3]