Tim Dodd has an interesting video on Ursa Major, a rocket engine developer on his Everyday Astronaut channel:
Some interesting tidbits:
Some interesting tidbits:
- Their rockets are all staged combustion (and one closed catalyst cycle)
- Their first 2 (1 in production and another in dev) are oxygen rich, which is a metallurgy challenge
- They have a full-flow staged combustion engine in development
- Their FFSC engine is a methalox
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