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Specification	Spectrum Isar Aerospace × remove	Voskhod Soviet Space Program × remove	Electron Rocket Lab × remove
Flights	1	299	91
Success rate	0%	95.7%	95.6%
Thrust	675 kN	—	162 kN
Height	28 m	—	18 m
Diameter	2 m	—	1.2 m
Launch mass	—	—	13 t
LEO capacity	1,000 kg	—	300 kg
GTO capacity	—	—	—
Launch cost	—	—	$6M
Reusable	No	No	No
Stages	2	—	3

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