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X-Bow Begins Hot-Firings Of Large Solid Rocket Motor For Hypersonic Applications

By Cal Biesecker

Tuesday, March 3rd, 2026

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X-Bow Begins Hot-Firings Of Large Solid Rocket Motor For Hypersonic Applications

Hot fire of X-Bow's XB-34 solid rocket motor in February 2026. Photo: X-Bow Systems

X-Bow Systems last month conducted the first static firing of its largest solid rocket motor (SRM) yet, the XB-34, a self-funded 34.5-inch diameter motor the company is designing to be an alternative supplier of motors to power hypersonic weapons for the Army and Navy. The New Mexico-based startup also believes the size and thrust impulse of the XB-34 could make it a strong fit for future space-based interceptors (SBIs) designed to intercept adversary ballistic missiles during the boost phase, Jason…

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