BEIJING – Chinese rocket builder CALT has assembled the airframe of the first Long March 5, a new type of space launcher that will loft the country’s heaviest loads into space. An official photograph shows that the first unit, built at the new Tianjin industrial base, is of the Long March 5B version. That is the most powerful variant of Long March 5, featuring two core stages and four boosters of the largest size. The payload of this version is 20 metric tons (44,000 lb.) to low ...


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