LM-4B Launch Vehicle

The history of LM-4B traces back to the end of the 1970s. The feasibility study of LM-4 began in 1982 and the engineering development was initiated in the following year. Initially, the LM-4 served as a back-up launch vehicle for LM-3 to launch China's communications satellites. After the successful launch of China's first communications satellites by LM-3 in 1984, the main mission of the LM-4