Head to head

Ariane 64 vs Long March 3B

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

Ariane 64: 21,900 kg

Long March 3B: 11,500 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	Ariane 64	Long March 3B
Flights flown	3	24
Success rate	100%	87.5%
Payload to LEO (kg)	21,900	11,500
Payload to GTO (kg)	11,700	5,100
Length (m)	63	54.8
Diameter (m)	5.4	3.35
Stages	2	3

Ariane 64

Flight record

100% success rate3 of 3 flown

Maiden flight 2026-06-17. Still flying.

Long March 3B

Flight record

87.5% success rate21 of 24 flown · 3 failed

1996peak 2020 · 4 flights2023

Maiden flight 1996-02-14. Still flying.

Ariane 64 is built by ArianeGroup of France (company profile on Space Index).Long March 3B is built by China Aerospace Science and Technology Corporation of China.

Full specifications and the complete launch history for each: Ariane 64 · Long March 3B.

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