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Specification	Thor Delta B McDonnell Douglas × remove	Electron Rocket Lab × remove
Flights	9	91
Success rate	88.9%	95.6%
Thrust	667 kN	162 kN
Height	31 m	18 m
Diameter	2.44 m	1.2 m
Launch mass	51 t	13 t
LEO capacity	370 kg	300 kg
GTO capacity	68 kg	—
Launch cost	$9.59M	$6M
Reusable	No	No
Stages	3	3

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