高天伟：九机并联、发射工位试车，这次实验为啥是“终极大考”？

Core Viewpoint - The successful test of the Zhuque-3 rocket's first stage propulsion system marks a significant milestone in China's commercial space industry, demonstrating advancements in reusable rocket technology and operational efficiency [1]. Group 1: Test Details - The test was conducted at the Dongfeng Commercial Space Innovation Test Zone, where all nine engines of the rocket's first stage were ignited for over 40 seconds, achieving a maximum thrust of nearly 800 tons [1]. - This test is noted as the largest thrust test of a liquid rocket in China to date and the first commercial rocket test conducted at a launch site [1]. Group 2: Importance of Reusable Rockets - The test represents a critical step in the development of reusable rockets, transitioning from concept to practical application, and is essential for validating the technology and operational processes involved [1]. - The ability to reuse rocket components can significantly reduce costs, as demonstrated by historical developments in the field, particularly by SpaceX with its Falcon 9 rocket [4]. Group 3: Multi-Engine Configuration - The test successfully demonstrated the capability of conducting tests with multiple engines (seven or more) operating in parallel, which is crucial for the recovery of rockets [5]. - The design of using multiple engines allows for significant thrust adjustment, enabling the rocket to meet the different demands of launch and landing [9].