天龙三号大型液体运载火箭通过首飞前最大技术考验

Core Viewpoint - Tianlong-3 large liquid launch vehicle developed by Tianbing Technology has successfully completed a key engine test, marking a significant step towards its maiden flight scheduled for the end of 2025 [1][3]. Group 1: Technical Achievements - The engine test conducted on September 15 validated the correctness and coordination of various systems in the first stage of the rocket, setting a new domestic record for thrust in commercial space launch vehicles [1]. - The test simulated actual flight conditions, covering the entire process from propellant loading to engine ignition and shutdown, ensuring all systems operated normally and met performance requirements for the maiden flight [1]. - This test is the first of its kind in China's commercial space sector to be conducted at sea, addressing key technologies for complex marine environments, including wind, vibration, and environmental protection [1]. Group 2: Vehicle Specifications - Tianlong-3 is China's first commercial rocket with a near-Earth orbit capacity expected to exceed 20 tons, with a total length of 72 meters and a launch weight of approximately 600 tons [2]. - The rocket's first stage is equipped with nine "Tianhuo-12" engines, providing a payload capacity of 17 to 22 tons for near-Earth orbit and 10 to 17 tons for sun-synchronous orbit [2]. - The vehicle's high capacity, low cost, and reusability align with the urgent demand for frequent and large-scale launches for satellite internet constellation construction and support for large cargo transport to the space station [2].