| Country of origin |  United States |
|---|---|
| Date | 2022 |
| Designer | Firefly Aerospace |
| Manufacturer | Firefly Aerospace |
| Application | Main engine |
| Associated LV | Antares 330 MLV |
| Predecessor | Reaver |
| Status | In development |
| Liquid-fuel engine | |
| Propellant | LOX / RP-1 |
| Cycle | 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] |
| Notes | engine is reusable on MLV vehicle |
Miranda is a liquid-fueled rocket engine currently being developed by Firefly Aerospace. The engine is designed to power both Firefly's MLV (Medium Launch Vehicle) and the Antares 330 from Northrop Grumman.[3]
Its development was necessitated by Russia's invasion of Ukraine, the RD-181 engine previously used on the Antares was built in Russia and subject to sanctions.[4]
Development began in 2022 and in 2024 Firefly reported substantial progress on testing the engine.[5]
- ^ "New Medium Launch Vehicle". Firefly Aerospace. Retrieved 16 August 2024.
- ^ "Northrop Grumman Teams with Firefly Aerospace to Develop Antares Rocket Upgrade and New Medium Launch Vehicle". Firefly Aerospace. 17 August 2022.
- ^ Foust, Jeff (8 August 2022). "Northrop Grumman and Firefly to partner on upgraded Antares". SpaceNews. Retrieved 22 June 2024.
- ^ Brett Tingley (29 November 2023). "Firefly Aerospace's new rocket engine spouts green flames in 1st 'hot fire' test (photo)". Space.com. Retrieved 22 June 2024.
- ^ "After 14 hot fires on stubby engines, a full length Miranda engine is up next!".
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