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Long March 5 on the launch pad on Hainan

Long March 5

The Long March 5 is the biggest and most powerful rocket of the Chinese Series of Long March rockets. Based on its Chinese name, 长征 cháng zhēng, the Long March 5 is also designated CZ-5. It was developed by the China Academy of Launch Vehicle Technology (CALT) and is operated by the China Aerospace Science and Technology Corporation (CASC).

Long March 5B on the launch pad.

The rocket is 57 meters tall and the main body without booster rockets is 5 meters in diameter. It may lift up to 14000 kg to geosynchronous orbit. There are two versions of the Long March 5: The Long March 5 has two stages, while the Long March 5B has only one stage and a higher payload.

First stage of a Long March 5 during assembly at the launch site.

The Long March 5 was first launched in November 2016, delivering a large new communications satellite into orbit. The second launch failed, after which no further launches were made for 900 days in order to find the problem. The YF-77 engine’s turbo pumps were isolated and the problem fixed. In subsequent launches the problem did not reoccur.

The Long March 5 is the backbone of major Chinese space missions. It carried the spacecraft for the Tianwen 1 Mars mission and the Chang'e 5 lunar lander into space. The Long March 5B was specifically designed to launch the modules for China’s Tiangong space station into orbit.

A Long March 5B is launched

wingspan: 21.65m
height: 56.97m
diameter: 5m
empty weight: 851,800kg
payload to low earth orbit: 25,000kg

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