长征八号甲运载火箭YF-75DB氢氧发动机顺利完成鉴定试车

Core Viewpoint - The successful completion of the YF-75DB hydrogen-oxygen engine test for the Long March 8 rocket marks its official entry into the engineering application phase [1] Group 1 - The test was conducted following a fourfold working cycle process, starting from September 22, and included 4 tests with a total of 9 ignitions [1] - The tests covered various working conditions, fully verifying the engine's performance under complex conditions, structural reliability, and the adaptability of its components [1] - This achievement signifies a significant milestone for the China Aerospace Science and Technology Corporation in advancing its rocket technology [1]