Ursa Major Technologies Inc.

Founded in 2015, Ursa Major wants to build engines for companies building small launch vehicles
The company successfully designed and built two liquid oxygen and kerosene engines and has a third engine in development


"Riplay" (left) and "Hadley" engines


"Ripley" engine combustor (left) for 156 kN of thrust

"Hadley" rocket engine for serial production

"Riplay" and "Hadley"turbopumps

"Hadley" (22 kN of thrust)

"Hadley" combustor test

Different "Hadley" combustors for tests