Firefly, Northrop Grumman to Redesign Antares - here's Astroguyz on the partnership between Firefly_Space and northropgrumman to build Antares 330 -
The Antares rocket is a two- to three- stage rocket, capable of hoisting 8,000 kilograms to low Earth orbit. First launched in 2013, Antares relies on two Russian-built RD-181 engines for operation.In the past, Orbital Sciences has used Antares rockets launched from NASA’s Wallops Island flight facility along the Virginia Atlantic Coast to send its Cygnus spacecraft with cargo headed to the International Space Station.
This hasn’t been without its setbacks; for example, an Antares rocket exploded shortly after launch in 2014, destroying Cygnus and its precious cargo. This was actually later traced back to the aging NK-33 rocket motors used on the Antares 100 version, another prime reason to prompt the switch.and the war in Ukraine and the resulting sanctions on Russia by the West that have put a halt on Antares rocket production.
In the meantime, Northop has purchased slots on three SpaceX Falcon-9 launches for Cygnus headed to the International Space Station in 2023 and 2024. SpaceX is definitely taking up lots of the slack generated by the Russia-Ukraine conflict, as the company is now shuttling astronauts to the ISS on Crew Dragon, and will actually alsoFirefly Aerospace will now begin development for the seven each Miranda engines designed for the new Antares version 330 rocket.
Cygnus could also be crucial, as the spacecraft can also be used to boost and stabilize the ISS in its orbit in the event that the Russians pull out of the project entirely, as they’ve said
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