Orb-5 – Spaceflight Now

October 2, 2025

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New engines arrive at Antares rocket launch site

August 10, 2015 Stephen Clark

The first pair of new Russian main engines for Orbital ATK’s modernized Antares rocket has arrived at the company’s Virginia launch base as engineers prepare to return the commercial booster to flight after a catastrophic failure last year.

RD-181 engines prepared for shipment to U.S.

June 1, 2015 Stephen Clark

The first pair of RD-181 rocket engines set to launch on Orbital ATK’s redesigned Antares rocket are in the final stages of acceptance testing in Russia ahead of their export to the United States in early July, officials said.