Head to head

Long March 2F/G vs Long March 3B/E

Two vehicles in the same payload class. Every figure below comes from the same two sources for both rockets, and a row appears only when both publish the input.

Payload to low Earth orbit

Relative

Long March 2F/G: 8,399 kg

Long March 3B/E: 12,000 kg

Side by side

7 comparable figures

The highlighted value wins the row. Rows where neither direction is better, like length or stage count, highlight nothing.

Metric	Long March 2F/G	Long March 3B/E
Flights flown	22	78
Success rate	100%	97.4%
Payload to LEO (kg)	8,399	12,000
Length (m)	62	56.3
Diameter (m)	3.35	3.35
Launch mass (t)	464	456
Stages	2	3

Long March 2F/G

Flight record

100% success rate22 of 22 flown

2011peak 2022 · 3 flights2026

Maiden flight 2011-10-31. Still flying.

Long March 3B/E

Flight record

97.4% success rate76 of 78 flown · 2 failed

2007peak 2025 · 13 flights2026

Maiden flight 2007-05-13. Still flying.

Long March 2F/G is built by China Aerospace Science and Technology Corporation of China.Long March 3B/E is built by China Aerospace Science and Technology Corporation of China.

Full specifications and the complete launch history for each: Long March 2F/G · Long March 3B/E.

Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.