起飞推力超750吨！“朱雀三号”进入首飞准备

Core Viewpoint - The successful completion of the first phase of the Zhuque-3 rocket's maiden flight marks a significant advancement in China's reusable launch vehicle technology, moving towards engineering application [1][14]. Phase Summary - The Zhuque-3 rocket's maiden flight is divided into two phases: the first phase involves propellant loading and static ignition tests, while the second phase focuses on orbital launch and attempting first-stage recovery [3][14]. - The static ignition test is the last major ground test before the maiden flight, simulating real launch conditions to verify the reliability of the rocket's propulsion system and launch procedures [5][14]. Technical Specifications - Zhuque-3 is China's first large reusable rocket made of stainless steel, measuring 66.1 meters in length and weighing 570 tons at launch, with a fairing diameter of 5.2 meters [6]. - The rocket's payload capacity significantly exceeds that of current medium-sized rockets, with a low Earth orbit capacity of 21.3 tons for single missions and 18.3 tons for recovery missions [8]. - The first stage is designed for 20 reuse cycles, greatly reducing launch costs, and is equipped with grid fins, RCS, and landing legs for autonomous return and soft landing [8]. Engine Breakthrough - The Zhuque-3 is powered by the Tianque-12A engine, which uses liquid oxygen and methane, featuring a sea-level thrust of 720 kN and variable thrust capabilities [10][11]. - The engine supports multiple ignitions and rapid checks, suitable for high-frequency launches, and has successfully demonstrated in-flight re-ignition capabilities [11]. Recovery Validation - The recovery development of Zhuque-3 follows a step-by-step technical approach, with significant milestones achieved in vertical takeoff and landing tests [12]. - The rocket has successfully completed a 10-kilometer vertical takeoff and landing test, overcoming challenges related to aerodynamic stability and precision landing [12]. Future Prospects - Zhuque-3 is expected to conduct its first flight by the end of 2025, aiming to achieve simultaneous orbital launch and first-stage recovery [13]. - The rocket will support satellite internet constellation launches, with a single mission capable of deploying over 18 tons of payload, potentially reducing launch costs to one-third of current rockets as reusable technology matures [17].