China Spacesat(SH:600118) Yang Shi Xin Wen·2026-02-11 06:50Core Viewpoint - China's successful implementation of the Long March 10 rocket system low-altitude demonstration test and the maximum dynamic pressure escape flight test for the Mengtian crewed spacecraft marks a significant breakthrough in the country's crewed lunar exploration program [1] Group 1: Test Overview - The Long March 10 rocket, carrying the Mengtian crewed spacecraft, conducted its first flight test at the Wenchang Space Launch Site [1] - The rocket's first stage ignited five out of seven engines, initiating the low-altitude demonstration verification [1] Group 2: Low-Altitude Flight Explanation - The term "low-altitude flight" refers to the test's lack of a second stage, resulting in a maximum altitude of approximately 105 kilometers, which is consistent with normal flight missions [2] Group 3: Engine Ignition Details - Two engines were not ignited to maintain consistent acceleration during the ascent due to the rocket's lighter weight without the second stage [3] Group 4: Maximum Dynamic Pressure - The maximum dynamic pressure occurs when the rocket experiences peak aerodynamic resistance during ascent, which is influenced by increasing speed and altitude [4] Group 5: Purpose of Maximum Dynamic Pressure Escape Test - The test aims to evaluate the spacecraft's ability to escape safely in the event of an emergency near the maximum dynamic pressure point during ascent, focusing on three main challenges: safe separation during high-speed ascent, stability during the escape phase, and precise program matching throughout the flight [5] Group 6: Technological Breakthroughs and Significance - The successful test assessed the reliability of multiple engine ignitions and high-altitude ignition, as well as high-precision navigation control during re-entry, marking a key breakthrough in China's reusable rocket technology [6]