Long March-5B - the “one-and-half stage” rocket

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The Long March-5B launch vehicle is a “one-and-half stage” rocket. Li Dong (chief designer of Long March-5, China Academy of Launch Vehicle Technology - CALT) explains the differences between Long March-5 and Long March-5B. The first Long March-5B rocket launched China’s new-generation crewed spacecraft on 5 May 2020.The second Long March-5B rocket launched the Tianhe core module of the China Space Station on 29 April 2021.
Credit: China Central Television (CCTV)