Liftoff without the heavy lifting
For decades, the U.S. aerospace and defense industry has faced two problematic choices for propulsion: build engines in-house—which can take 5-10 years and hundreds of millions of dollars—or buy outdated or foreign technology.
With high-performing, turnkey rocket engines, Ursa Major focuses exclusively on propulsion so you don't have to.
In production: America’s first oxygen-rich staged combustion engine
Suitable for small launch, hypersonics
In development: Highest performing kerosene engine ever built in the U.S.
Suitable for small to medium commercial launch
In design: The future of American engines for heavy lift
Suitable for medium to heavy launch, national security launch, RD-180 replacement