Head to head

Ariane 44LP vs Soyuz-U-PVB

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 44LP: 8,000 kg

Soyuz-U-PVB: 6,900 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 44LP	Soyuz-U-PVB
Flights flown	26	74
Success rate	96.2%	97.3%
Payload to LEO (kg)	8,000	6,900
Length (m)	58.4	51
Diameter (m)	3.8	3
Launch mass (t)	420	313
Stages	2	2

Ariane 44LP

Flight record

96.2% success rate25 of 26 flown · 1 failed

1988peak 1994 · 3 flights2001

Maiden flight 1988-06-15. Retired.

Soyuz-U-PVB

Flight record

97.3% success rate72 of 74 flown · 2 failed

1984peak 1999 · 9 flights2009

Maiden flight 1984-03-21. Retired.

Ariane 44LP is built by Aérospatiale of France (company profile on Space Index).Soyuz-U-PVB is built by Progress Rocket Space Center of Russia.

Full specifications and the complete launch history for each: Ariane 44LP · Soyuz-U-PVB.

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