Rocket file · LV-10
Long March 4B
Long March 4B is an expendable launch vehicle built by China Aerospace Science and Technology Corporation. It stands 44.1 m tall, lifts 4,200 kg to low Earth orbit, first flew on 10 May 1999. It has flown 59 times with 58 successes, a success rate of 98.3%. It has nothing on the Launch Library 2 schedule right now.
Specification
Vehicle spec sheet
As listed by Launch Library 2. The cost is Launch Library’s figure, not a quoted price. Figures for rockets outside the sixty most-flown were last read on 2026-11-05.
Flight record
Reliability
About 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. Launched from Launch Complex 1 at the Taiyuan Satellite Launch Center, it is a 3-stage rocket, used mostly to place satellites into low Earth and sun synchronous orbits.
Upcoming flights
Manifest
There's no Long March 4B flight on the Launch Library 2 schedule right now.
All upcoming launchesLong March 4B in the archive
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Common questions
- How many times has Long March 4B flown?
- 59 times, with 58 successes and 1 failures.
- What is Long March 4B's success rate?
- 98.3%. That's 58 successful flights out of 59 attempts.
- When is the next Long March 4B launch?
- Long March 4B has nothing on the Launch Library 2 schedule right now.
- How much can Long March 4B lift to orbit?
- Launch Library 2 lists Long March 4B at 4,200 kg to low Earth orbit and 1,500 kg to geostationary transfer orbit.
- Is Long March 4B reusable?
- No. Launch Library 2 lists Long March 4B as expendable, so no stage is recovered to fly again.