As Antares Swaps Russian Engines, Orbital Hopes To Sidestep Politics

Credit: Energomash built this prototype of the RD-181 engine, which it is developing to replace the AJ-26 on Orbital Sciences Corp.’s Antares launcher. Credit: NPO Energomash
Orbital Sciences Corp. will buy—directly from Russia’s NPO Energomash—a new rocket engine with a long heritage. It will replace the surplus Russian engines tentatively implicated in the Oct. 28 failure of an Antares launch vehicle with a load of cargo for the International Space Station. Designated...

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