X-Bow Solid Rocket Motors
Solid rocket motors, including ones made with 3D-printed propellant, built for missile and defense programs.
Why it matters
Solid motors power missiles and many launch vehicles. Lockheed Martin invested in X-Bow and signed an agreement to bring it on as a new independent supplier of solid motors, adding capacity outside the established makers.
How the technology works
X-Bow mixes and casts solid propellant into motor cases, and has a patented method for additively manufacturing propellant grains. Its 'Rocket Factory in a Box' packages motor production into a deployable setup.
Sources
Updated Oct 22, 2026 · How we source facts · Suggest a correction