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Long March 12B

Active

China Aerospace Science and Technology Corporation

Long March 12B/Changzheng 12B (LM-12B/CZ-12B) is a reusable orbital launch vehicle developed by the China Aerospace Science and Technology Commercial Launch Vehicle Group (CACL), a subsidiary company of the state-owned China Aerospace Science and Technology Corporation (CASC). The rocket is based on the Long March 12, but extensively re-designed for first stage re-usability, and use of gas generator cycle kerosene/liquid oxygen powered rocket engines in both stages. The first stage uses 9 YF-102R engines and the second stage uses 1 YF-102V engine, both from CASC's Academy of Aerospace Liquid Propulsion Technology (AALPT). On launch missions where the first stage is recovered, it will land on a down-range landing pad located in Minqin County, Gansu Province.

Key figures

Total launches
1
Successes
1
Failures
0
Success rate
100.0 %
Success streak
1
Maiden flight
Jun 1, 2026
Reusable
Yes
Planned launches
0
Long March, Long March 12 family total
8 launches Β· 8 successes Β· 0 failures (3 variants)

🧐 Data check

Automatic plausibility checks β€” anomalies are surfaced transparently here:

  • ℹ️The figures above apply only to the β€œLong March 12B” variant. The Launch Library counts each variant separately β€” the Long March, Long March 12 family totals 8 launches across 3 variants.

Technology

Length
72 m
Diameter
4.37 m
Liftoff thrust
7,940 kN
Stages
2
LEO (low Earth orbit)
20,000 kg
SSO (sun-synchronous)
15,000 kg

Launches per year

of which in our database: 1

2026: 1 Successes12026
Successes Failures Other/planned

History & events

  1. Jun 1, 2026πŸš€ Maiden flightDemo Flight (SpaceSail Polar Group #10)View launch β†’

Sources