China's first solid bound medium-sized carrier rocket, Long March 6, was successfully launched at Taiyuan Satellite Launch Center, successfully putting Pujiang 2 satellite and Tiankun 2 satellite into the predetermined orbit.
The successful first flight of the Long March 6 carrier rocket marks the addition of new members to China's new generation carrier rocket family and further improves the construction of the type spectrum of China's new generation carrier rocket
"Hybrid rocket", more efficient
For the first time, the Long March 6 modified rocket realized the "cross-border cooperation" of solid-liquid engines in the field of launch vehicles in China, broke through the key technologies such as solid booster binding and separation technology, binding point large concentrated force diffusion technology, solid-liquid binding combined swing control, and gave full play to the comprehensive advantages of high performance, long working time of liquid engines, large thrust of solid engines and simple use and maintenance, so as to achieve higher rocket reliability Better cost performance. At the same time, relying on the new launch station of Taiyuan Satellite Launch Center, the Long March 6 modified rocket can realize 14 day rapid launch and meet the high-density launch needs of low and medium orbit satellites.
"Health housekeeper", more intelligent
In order to ensure that the launch mission is safe, an "intelligent" health diagnosis system is set up at the first stage of the rocket core. After the "ignition" command is issued, the core level 1 liquid engine will be ignited first, and the health diagnosis system will enter the working mode. Once an abnormal emergency occurs, the health diagnosis system will immediately make a judgment and implement automatic emergency shutdown. At the same time, the solid motor of the booster will no longer be ignited. In addition, the Long March 6 modified rocket adopts the servo system on-line fault diagnosis and adaptive reconstruction technology for the first time in China. In the process of rocket flight, when a servo mechanism fails, the intelligent "brain" will recalculate and assign control instructions according to the results of self diagnosis, so as to realize the intelligent control of rocket flight.

"Unattended", safer
Four hours before the launch of the rocket, all front-end operators withdrew from the tower, and the rocket completed the subsequent launch process through unattended technology. The unattended technology of the Long March 6 modified rocket has realized three "firsts" in the field of carrier in China: the automatic docking and filling technology is adopted for the first time, which can realize the automatic filling of propellant in the whole process of long-distance; The zero second shedding technology is adopted for the first time, and the rocket ground connector automatically falls off at the moment of take-off; After the propellant filling was realized for the first time, no one was on duty at the front end of the launch site, which effectively guaranteed the safety of the rocket launch mission, and it was also a firm practice of the "people-oriented" concept of the model.