Group 1 - The successful test of the first-stage propulsion system of the Lijian-2 liquid launch vehicle marks a significant milestone in the development phase, validating key technologies and laying the foundation for the maiden flight of the Light Boat cargo spacecraft [1] - The propulsion system test is the most complex and challenging ground test in the rocket development process, ensuring the reliability and stability of the rocket's flight [1] - The test verified the coordination and compatibility of the rocket's first-stage pressurization delivery system with the engine system, as well as the correctness of interfaces among propulsion, structure, avionics, and launch support systems [1] Group 2 - The test was conducted at the China Aerospace Science and Technology Corporation's liquid propulsion system test center in Guangzhou, which has been fully completed and passed the test assessment [2] - The test center is a leading domestic facility with capabilities for testing 200-ton liquid rocket engines and 400-ton integrated propulsion systems, crucial for the development of key technologies for commercial rocket recovery [2] - The upcoming completion of the technical preparation building and dedicated launch site for the Lijian-2 liquid launch vehicle in Jiuquan, Gansu, will enable an "out-of-factory, immediate launch" model, significantly shortening the preparation cycle for commercial rocket launches [2]

Core Viewpoint - The successful test of the first-stage propulsion system of the Lijian-2 liquid launch vehicle marks a significant milestone in the development phase, laying a solid foundation for the maiden flight of the light cargo spacecraft [1][3]. Group 1: Test Details - The test conducted on June 11 at the China Aerospace Science and Technology Corporation's liquid propulsion system testing center validated key technologies of the Lijian-2 [1][3]. - The test involved the engine starting, oscillating, and shutting down according to a predetermined program, confirming the normal operation of the system [3]. - The test covered the flight mission profile and effectively assessed the coordination between the booster delivery system and the engine system, as well as the correctness of system interfaces [3]. Group 2: Testing Center Significance - The successful test signifies the completion and passing of assessments for the liquid propulsion system testing center, which is a leading large-scale testing facility in China [3][4]. - The center has the capability to test 200-ton liquid rocket engines and conduct comprehensive testing of 400-ton propulsion systems, essential for mass production and propulsion research [3][4]. - It is the only testing institution in China with both liquid engine testing and rocket propulsion system testing capabilities, making it crucial for the development of key technologies for commercial rocket recovery [4].