Ursa Major Highlights Higher-Reuse H13 Rocket Engine Variant After Initial Hot-Fire Tests

According to a recent LinkedIn post from Ursa Major, the company’s latest variant of its flight-proven Hadley liquid rocket engine, dubbed H13, has completed initial hot-fire tests after design and manufacturing enhancements. The post describes H13 as a mission-upgraded, hypersonic-ready engine aimed at diverse applications, with a focus on higher reusability and streamlined production.

The LinkedIn post highlights comments from CEO Christopher Spagnoletti indicating that H13 can be reused more than twice as many times as prior Hadley variants, which is presented as a lever to reduce cost per flight. For investors, increased reusability and production efficiency may improve unit economics, potentially strengthening Ursa Major’s competitive position in the hypersonic and space propulsion markets and supporting scalability for future commercial and defense contracts.

The post also underscores that Hadley has already flown in hypersonic missions, suggesting that H13 builds on an existing operational track record rather than a purely developmental platform. This evolution could signal growing technological maturity and reliability, factors that may be important for securing long-term partnerships with launch providers and government customers, and could influence perceptions of Ursa Major’s revenue visibility and pipeline quality.