Core Insights - Blue Arrow Aerospace has established itself as the only domestic commercial rocket company in China with a complete capability chain of "research, manufacturing, testing, and launching" over the past ten years [1] Group 1: Liquid Oxygen Methane Era - The successful launch of the "Zhuque-2" rocket on July 12, 2023, marks it as the world's first liquid oxygen methane rocket to achieve orbit, filling a domestic gap [2] - Blue Arrow Aerospace chose liquid oxygen/methane as the propellant for its self-developed "Zhuque-2" rocket, believing it to be a bold yet rational choice due to methane's advantages over kerosene [2][3] - Methane's benefits include low cost, clean combustion with no carbon deposits, and easier maintenance for reusable engines compared to traditional propellants [3] Group 2: Engine Development - The "Tianque" 80-ton liquid oxygen methane rocket engine (TQ-12) is the first large thrust liquid oxygen methane engine developed by a private enterprise in China, ranking third globally and first in Asia in thrust levels [4] - The TQ-12 engine incorporates over ten key technologies, including efficient combustion and high-precision low-temperature regulators, which are domestic innovations [4] - The TQ-15A vacuum engine, developed in 2021, improved vacuum thrust by 11.8% and increased specific impulse by 126 m/s, showcasing advancements in engine design and efficiency [5] Group 3: Future Prospects - The "Zhuque-3" rocket, made from high-strength stainless steel, is set to be the first of its kind in China, with a planned maiden flight in 2025 [6] - The first-stage engine of the Zhuque-3 can be reused without disassembly after recovery, allowing for a significant reduction in launch costs by 80%-90% compared to single-use rockets [6]