新春走基层 | 万马奔腾开新局 中国航天再创辉煌

Core Viewpoint - The successful low-altitude flight test of the Long March 10 rocket, which carried the "Dream Boat" spacecraft, marks a significant milestone in China's manned lunar exploration program, validating key technologies for reusable rockets [1][16]. Group 1: Flight Test Details - The Long March 10 rocket, as China's fourth-generation rocket, features intelligent flight and reusability, with the low-altitude flight test serving as a critical technology validation for its reusable capabilities [3]. - The flight test was planned to last 470 seconds and included the first domestic maximum dynamic pressure escape and a world-first sea recovery system [3]. - The test team prepared for five years to ensure the success of this mission [3]. Group 2: Pre-Launch Preparations - Prior to the launch, three total checks and three full system rehearsals were conducted, involving coordination among various systems including the launch site, rocket, spacecraft, and recovery operations [4]. - Due to ongoing construction at the Long March 10's control building, a temporary control system was set up in a container to facilitate remote control and testing of the rocket [4]. Group 3: Recovery Operations - The recovery vessels set sail from late January to early February to reach the theoretical landing area of the rocket [5]. - The recovery team faced challenges due to the dynamic nature of ocean currents, requiring frequent updates on the landing coordinates every 3-5 minutes [9]. - The recovery platform, "Navigator," measures 144 meters in length and has a displacement of over 25,000 tons, presenting significant challenges in high seas [13]. Group 4: Technical Challenges - The recovery operation involved complex dynamics, including the need for high-speed movement to capture the rocket and manage energy absorption during recovery [13]. - The team utilized optical measurement systems and stabilization technologies to ensure clear tracking images despite rough sea conditions [9]. - The launch team faced logistical challenges, including temporary refueling methods due to incomplete facilities at the launch site [14].