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Firefly Aerospace liquid-fuel rocket engine From Wikipedia, the free encyclopedia
Miranda is a liquid-fueled rocket engine currently being developed by Firefly Aerospace to power the company’s MLV (Medium Launch Vehicle). It will also be used on the Antares 330 rocket developed by Northrop Grumman.[3]
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Country of origin | United States |
---|---|
Date | 2022 |
Manufacturer | Firefly Aerospace |
Application | Main engine |
Associated LV | Antares 330 MLV |
Predecessor | Reaver |
Status | In development |
Liquid-fuel engine | |
Propellant | LOX / RP-1 |
Cycle | Combustion tap-off |
Pumps | Turbopump |
Configuration | |
Chamber | 1 |
Performance | |
Thrust, vacuum | 1,023 kN (230,000 lbf) |
Specific impulse, vacuum | 305 s (2.99 km/s) |
References | |
References | [1][2] |
The Antares previously used a Ukrainian-built first stage with the Russian-built RD-181 engine and production ceased after the Russian invasion of Ukraine.[4] Firefly will also assemble the entire first stage for the Antares 330.[5]
Development began in 2022 and in 2024 Firefly reported substantial progress on testing the engine, with 20 test fires completed. As of June 2024, the Miranda engine had entered production.[5] To support production of the Miranda engine, the MLV and the first-stage for the Antares 300, Firefly expanded its Briggs, Texas facility from 92,000 to 207,000 square feet (8,500 to 19,200 m2).[6]
Firefly said that it has designed the Miranda from its inception for reusability. The company plans to restart the engine multiple times as the rocket performs a return-to-launch-site maneuver for a propulsive landing.[5]
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