累计试车1300秒！力擎一号30吨级针栓式液氧煤油发动机圆满完成变推力摇摆试车考核

Core Viewpoint - The successful testing of the "Liqing No. 1" engine marks a significant advancement in China's aerospace technology, particularly in the field of variable thrust control for liquid oxygen and kerosene engines [1][3]. Group 1: Engine Development - The "Liqing No. 1" engine has completed a total of 330 seconds of testing, bringing its cumulative test duration to over 1300 seconds, which exceeds the flight duration of reusable rocket stages by more than five times [1]. - The engine has achieved a deep variable thrust adjustment capability from 100% to 50%, with a thrust precision adjustment capability at the 1% level, indicating industry-leading performance metrics [1][3]. Group 2: Future Plans - The "Liqing No. 2" engine, with a thrust capacity of 110 tons, is currently in a critical development phase, with preparations underway for a 200-second long-range test [1]. - The company plans to utilize three "Liqing No. 1" engines as the main power for the "Lihong No. 2" reusable spacecraft, aiming to conduct a 100-kilometer recovery technology verification this year [3].