Abstract: China’s first solid-liquid bundled launch vehicle, the Long March 6A (LM-6A) successfully adopted a number of key new technologies, launching the Pujiang 2 and Tiankun 2 satellites precisely into their predetermined orbits, thus demonstrating that China has mastered solid-liquid bundled launch vehicle technology and has a new member in the new generation launch vehicle family. For the first time in China, a booster adopted a 2 m-diameter solid motor and a 270 V, 20 kW high-voltage and high-power electric servo system was used to control the swing of the solid motor nozzles. A health diagnosis system for the core first stage engine and unattended automation technology were also adopted for the first time. 

Key words: font-family:arial, helvetica, sans-serif, font-size:15px, background-color:#FAFAFA, ">Long March 6A, solid booster binding and separation, attitude control, unattended technology