Testing Engines for the Eclipse Rocket | Firefly Aerospace

Testing Engines for the Eclipse Rocket | Firefly Aerospace

"Our Eclipse rocket engines need a test stand that can take the heat. With 95+ Miranda hot fires notched on our belts, go behind the scenes with the team at Test Stand 5 in the latest Ranch Hands episode!"

"Eclipse is built upon the success of Firefly’s Alpha and Northrop Grumman’s Antares rocket with a significant leap in power, performance, and payload capacity. The launch vehicle utilizes scaled-up versions of Alpha’s patented tap-off cycle engines and carbon composite structures to reduce mass and lower costs while improving performance and reliability. Eclipse also retains the flight-proven avionics from the Antares program with additional upgrades, including a larger 5.4 meter payload fairing."

The debut launch of Eclipse is expected to take place as early as 2026.

Learn more about Firefly Aerospace's Eclipse rocket: https://fireflyspace.com/eclipse/

Video Credit: Firefly Aerospace
Duration: 6 minutes
Release Date: Sept. 25, 2025

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