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Specification	Ares I-X National Aeronautics and Space Administration × remove	Falcon 9 Block 5 SpaceX × remove
Flights	1	611
Success rate	100%	99.8%
Thrust	12,000 kN	7,607 kN
Height	99.7 m	70 m
Diameter	3.71 m	3.65 m
Launch mass	816 t	549 t
LEO capacity	—	22,800 kg
GTO capacity	—	8,300 kg
Launch cost	—	$52M
Reusable	No	Yes
Stages	1	2

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