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Vehicles
Launch Vehicles
Long March 4B

In service· China Aerospace Science and Technology Corporation

Long March 4B

The Long March 4B (Chinese: 长征四号乙火箭), also known as the Chang Zheng 4B, CZ-4B and LM-4B is a Chinese orbital carrier rocket.

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Long March 4B

Launches

59

since May 1999

Success rate

98.3%

58 of 59 successful

In a row

39

successful launches

Launches per Year

Full year2026 so far

024

4

3

201820192020202120222023202420252026

Specifications

Height: 44.1 m
Diameter: 3.35 m
Liftoff mass: 249 t
Liftoff thrust: 2,961 kN
To low Earth orbit: 4,200 kg
To geostationary transfer: 1,500 kg
Stages: 3
First flight: May 10, 1999
Manufacturer: China Aerospace Science and Technology Corporation

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Recent Launches

Long March 4B | Yaogan 53-07 to 09/56-19 to 21

Yaogan 53-07 to 09/56-19 to 21China Aerospace Science and Technology Corporation · Long March 4B · Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of ChinaLaunch Successful7:25 PM UTC Sep10Thu

Long March 4B | Yaogan 53-01 to 03/56-01 to 03

Yaogan 53-01 to 03/56-01 to 03China Aerospace Science and Technology Corporation · Long March 4B · Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of ChinaLaunch Successful9:00 AM UTC Jul1Wed

Long March 4B | Haiyang 2E

Haiyang 2EChina Aerospace Science and Technology Corporation · Long March 4B · Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of ChinaLaunch Successful11:46 PM UTC Dec30Tue

Long March 4B | Tianhui 7

Tianhui 7China Aerospace Science and Technology Corporation · Long March 4B · Launch Area 94 (SLS-2 / 603), Jiuquan Satellite Launch Center, People's Republic of ChinaLaunch Successful4:12 AM UTC

All 59 Long March 4B launches