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Specification	Ares I-X National Aeronautics and Space Administration × remove	Electron Rocket Lab × remove
Flights	1	91
Success rate	100%	95.6%
Thrust	12,000 kN	162 kN
Height	99.7 m	18 m
Diameter	3.71 m	1.2 m
Launch mass	816 t	13 t
LEO capacity	—	300 kg
GTO capacity	—	—
Launch cost	—	$6M
Reusable	No	No
Stages	1	3

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