CASC

Long March 5 / 5B

Active

China's most powerful operational rocket; the heavy-lift workhorse that launches Tiangong station modules (5B), Chang'e and Tianwen deep-space missions, and large GEO satellites.

Latest update Sep 14, 2026

Long March 5 / 5B

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Current status

Operational since its 2016 maiden flight from Wenchang; selected to launch the Chang'e-7 lunar south-pole mission on the Y14 vehicle. The stack rolled out on August 19, 2026, then rolled back after the CMSA postponement. Partner reporting now points to early 2027. An August 10 Long March 7A failure triggered a YF-100 investigation that also powers the Long March 5's boosters; CASC has not issued a formal fleet clearance.

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Specifications5

Payload to LEO
25,000 kg
Payload to GTO
14,000 kg
Diameter
5.0 m (16 ft)
Propellant
LOX/kerosene + LOX/LH2
First Flight
November 2016

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