Ursa Major Successfully Hot Fires Latest Variant of AM-Enabled Hadley Engine

Why It Matters

The test demonstrates that additive‑manufactured propulsion can deliver higher performance at lower cost, accelerating commercial hypersonic and launch capabilities. Greater engine reuse directly reduces per‑flight expenses, a critical barrier for emerging space markets.

Key Takeaways

• H13 hot‑fired successfully, confirming design upgrades.
• 80% of components now 3D‑printed via vertical integration.
• Reusability projected to double versus prior Hadley versions.
• Cost per flight expected to drop significantly.
• Delivers 5,000 lbf sea‑level, 6,500 lbf vacuum thrust.

Pulse Analysis

Additive manufacturing is reshaping the propulsion landscape, and Ursa Major’s vertical integration exemplifies this shift. By in‑sourcing 3D‑printing for the majority of the Hadley H13’s components, the company reduces supply‑chain complexity and leverages rapid iteration cycles. The approach aligns with broader industry moves toward digital‑first production, where design freedom and material optimization translate into lighter, stronger engine parts without the traditional tooling overhead.

Technically, the H13 builds on the proven Hadley H11 platform but introduces new alloys and an oxygen‑rich staged‑combustion cycle that lifts sea‑level thrust to 5,000 lbf and vacuum thrust to 6,500 lbf. The engine’s upgraded materials extend component life, enabling more than twice the number of re‑flights compared with earlier versions. This increase in reuse not only cuts the cost per launch but also supports a wider array of mission profiles, from hypersonic testbeds to small satellite insertions, enhancing operational flexibility for customers.

The commercial implications are significant. Lower‑cost, high‑reusability engines like the Hadley H13 lower entry barriers for hypersonic research and small‑launch services, sectors that have historically been cost‑prohibitive. As defense contractors and private launch firms chase rapid‑turnaround, Mach‑5+ capabilities, Ursa Major’s strategy positions it as a key supplier in a market projected to grow double‑digit annually. Continued advancements in 3D‑printed alloys could further compress development timelines, making additive‑manufactured propulsion a cornerstone of next‑generation aerospace economics.