Core Viewpoint - The successful semi-system test of the 110-ton LOX-RP1 engine "Liqing No. 2" marks a significant advancement for the company in engine development and supports the development of reusable rocket technology in China [1] Group 1: Test Achievements - The semi-system test achieved all core indicators in one attempt, laying a solid foundation for the upcoming full-system test [1] - Key components tested include the turbine pump, gas generator, and valves, focusing on the functionality of the engine's "heart" components [1] Group 2: Technical Innovations - The "Liqing No. 2" engine is part of the reusable rocket series and incorporates advanced technologies such as gas generator cycles and a combination of LOX and RP1 propellants [1] - The development team has overcome several technical challenges related to the oxygen pump and fuel pump, and has filed multiple patents around core technologies [1] Group 3: Industry Impact - The success of this semi-system test represents a major breakthrough in engine research and development for the company, providing strong support for the advancement of China's reusable rocket technology [1] - This achievement is expected to propel China's aerospace industry to new heights [1]

Core Viewpoint - Zhongke Aerospace announced the successful semi-system test of its self-developed LQ-2 110-ton liquid oxygen kerosene engine, achieving all core indicators in one attempt [1] Group 1: Engine Development - The semi-system test product includes components such as the turbine pump, gas generator, valves, starting system, ignition system, and assembly pipelines, excluding the thrust chamber [1] - The LQ-2 engine is part of the reusable rocket first-stage engine series known as the LQ series [1] Group 2: Future Plans - The company plans to conduct a full system test at the Zhongke Aerospace Liquid Propulsion System Test Center by the end of this month [1]

Core Viewpoint - The article highlights the importance of precision and responsibility in the manufacturing of rocket engines, emphasizing the role of skilled workers in China's aerospace industry [1][4]. Group 1: Achievements and Innovations - The company has achieved a product precision enhancement to 0.02 mm and resolved 75 production challenges related to rocket engines, alongside filing 25 technical patents [1]. - A significant breakthrough was made in 2016 when a team successfully achieved micron-level precision control in a non-precision environment, with a first trial pass rate of 100% after nearly 50 attempts [3]. Group 2: Skills Development and Training - The company emphasizes a strong focus on talent cultivation, utilizing a "master-apprentice" model to train new employees, which includes hands-on project involvement to foster innovation and problem-solving skills [6][7]. - The establishment of a workshop named after a skilled worker has led to the formation of a talent pool that includes many high-skilled individuals, with over 20 projects completed and 32 invention patents filed in the past two years [7]. Group 3: Future Directions and Educational Integration - The company is exploring digital and intelligent manufacturing technologies, aiming to transition traditional manufacturing from small-batch processing to a more integrated digital and intelligent production model [5]. - There is a call for enhanced vocational education that integrates new production quality development, promoting industry collaboration and a dual-mentor training model to better prepare students for advanced manufacturing roles [8].

Group 1 - The successful ignition of a 90-ton reusable liquid oxygen kerosene engine on December 8, 2024, marks a significant breakthrough in China's commercial space industry regarding reusable rocket engine technology [1] - The successful test of a 140-ton reusable liquid oxygen methane engine on April 26, 2025, signifies a major advancement in the development of China's heavy-lift liquid oxygen methane engines [1] - The new engines are characterized by high thrust, high thrust-to-weight ratio, and reusability, providing essential support for the construction of a space power and commercial rocket launches [1] Group 2 - The China Aerospace Science and Technology Corporation's Sixth Academy has established a working mechanism focused on "technical limits assessment, rapid R&D iteration, and product improvement" to achieve breakthroughs in liquid propulsion technology [2] - The use of 3D printing technology has been emphasized to shorten the development cycle and facilitate the manufacturing of complex structures, with key components incorporating 3D printed parts [2] - The Academy aims to enhance the quality of liquid propulsion development by building an innovative system and fostering new productive forces with liquid propulsion characteristics [2]