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Specification	Ariane 1 Aérospatiale × remove	Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove
Flights	11	714
Success rate	81.8%	97.2%
Thrust	2,771 kN	—
Height	50 m	51.1 m
Diameter	3.8 m	2.95 m
Launch mass	207 t	313 t
LEO capacity	1,400 kg	6,900 kg
GTO capacity	1,850 kg	—
Launch cost	—	—
Reusable	No	No
Stages	4	3

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