Ursa Major Highlights More Reusable H13 Rocket Engine Variant After 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, the H13, has completed initial hot-fire tests after design and manufacturing improvements. The post describes H13 as a mission-upgraded, hypersonic-ready engine with greater reusability and streamlined production for diverse applications.

The LinkedIn post highlights comments from CEO Christopher Spagnoletti, who indicates that new materials and manufacturing allow H13 to be reused more than twice as many times as earlier variants, which could reduce cost per flight while enabling new test objectives and mission profiles. For investors, these capabilities may improve Ursa Major’s competitive position in the hypersonic and propulsion supply markets, potentially enhancing margins through lower unit economics and strengthening its appeal to defense and commercial launch customers.

The emphasis on increased reusability and production efficiency suggests a strategic focus on scalable manufacturing and long-term cost competitiveness in a sector where reliability and cadence are critical. If the performance and cost claims implied in the post are validated through further testing and customer adoption, Ursa Major could be better positioned to win larger propulsion contracts and deepen relationships with programs requiring high-flight-rate hypersonic testing and responsive launch solutions.