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Northrop, Firefly Aerospace to Develop US-Built 1st-Stage Upgrade for Antares Rocket

Northrop, Firefly Aerospace to Develop US-Built 1st-Stage Upgrade for Antares Rocket - top government contractors - best government contracting event

Northrop Grumman and Firefly Aerospace have teamed up to build the first-stage Antares rocket upgrade and a medium launch vehicle to support customers in national security, civilian and commercial space launch markets.

Through our collaboration, we will first develop a fully domestic version of our Antares rocket, the Antares 330, for Cygnus space station commercial resupply services, followed by an entirely new medium class launch vehicle,” Scott Lehr, vice president and general manager of launch and missile defense systems at Northrop, said in a statement published Monday.

Antares 330 will use seven of Firefly Aerospace’s Miranda engines and the company’s composites technology for the first-stage tanks and related structures. 

Under the partnership, Northrop will provide its software, avionics, Caster 30XL motor, upper-stage structures, vehicle integration and launch pad operations to help improve the rocket’s mass-to-orbit capability.

The Wall Street Journal reported the collaboration between Northrop and Firefly marks a transition away from Russian-made rocket engines.

Russia ceased rocket engine exports to the U.S. in March after the Biden administration imposed sanctions on the former following its invasion of Ukraine.

The current Antares rockets use Russian-manufactured RD-181 engines and are being used to bring cargo to the International Space Station as part of NASA’s resupply missions.

Kurt Eberly, director of space launch programs at Northrop, said the part of the Antares rocket with Firefly engines is expected to be fielded in late 2024.

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Written by Jane Edwards

is a staff writer at Executive Mosaic, where she writes for ExecutiveBiz about IT modernization, cybersecurity, space procurement and industry leaders’ perspectives on government technology trends.

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