Ursa Major wins $32.9M contract for Stratolaunch hypersonic engine production
June 17, 2025
Ursa Major Technologies Inc., located in Berthoud, Colorado, USA, has secured a $32.9 million contract to develop and deliver sixteen upgraded Hadley H13 rocket engines to Stratolaunch. The multi-year agreement is said to build on a history of successful flight partnerships and supports a growing operational cadence.
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“This contract directly supports US hypersonic test infrastructure and the broader imperative to accelerate high-speed flight programs that deliver for national security,” said Dan Jablonsky, CEO of Ursa Major. “As the proud partner and hypersonic propulsion provider to Stratolaunch, we’re focused on getting real capability into the field – faster, at scale, and without compromising performance.”
The Hadley H13 is a mission-upgraded variant that increases engine reusability with additional starts, driving down cost per flight while supporting new test objectives and mission profiles.
Ursa Major’s Hadley engines have successfully powered multiple Talon-A test flights, including sustained Mach 5+ flight and vehicle recovery, demonstrating the engine’s performance under operational conditions.
