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Specification	Black Arrow Royal Aircraft Establishment × remove	Proton K/DM-2 Khrunichev State Research and Production Space Center × remove
Flights	2	110
Success rate	50%	93.6%
Thrust	256 kN	—
Height	13 m	—
Diameter	2 m	—
Launch mass	18 t	—
LEO capacity	135 kg	—
GTO capacity	—	—
Launch cost	—	—
Reusable	No	No
Stages	3	—

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