IN Brief:
- Leidos selected X-Bow to develop and produce solid rocket booster motors for the US Army Low-Cost Containerized Munition.
- The motor work will proceed through design, qualification and static-fire testing before scaled production planned for 2027.
- Leidos previously announced an initial 3,000-munition framework; the value and quantity of X-Bow’s separate agreement have not been disclosed.
X-Bow Systems has been selected by Leidos to develop and produce solid rocket booster motors for the US Army’s Low-Cost Containerized Munition (LCCM) programme. The supplier will undertake design, qualification and static-fire testing ahead of intended scaled motor production in 2027. The companies have not disclosed X-Bow’s contract value, committed motor quantity or the date at which an approved production configuration will be available.
Leidos announced a separate Department of Defense framework in May covering an initial 3,000 complete LCCM cruise missiles. That figure concerns the programme’s planned munition output and must not be presented as an order for 3,000 motors from X-Bow. Leidos plans to expand its own manufacturing workforce and facilities in Huntsville, Alabama, and McEwen, Tennessee. The October supplier decision adds a named source of propulsion while the complete missile and associated industrial arrangements continue through development.
Solid rocket motors provide thrust by burning a propellant manufactured with fuel and oxidiser held together within a motor case. Once ignited, the propellant generates hot gases that pass through the nozzle to produce thrust. The shape and condition of the propellant, the case and nozzle design, and control of manufacturing tolerances influence how consistently the motor delivers its required performance. Designing a booster for a particular missile therefore involves more than meeting a nominal thrust target in a single laboratory firing.
Within the LCCM system, the motor also has to match the complete weapon’s launch arrangement, mass properties and operating envelope. It must support the missile’s intended transition away from its launch container and into the following phase of flight, while remaining compatible with handling and storage requirements. The companies have not disclosed the booster’s dimensions, propellant formulation or performance specification, and the award cannot be used to infer those design choices. Much of the qualification work will involve demonstrating acceptable behaviour across repeated builds, rather than publicising peak output from a prototype.
Static firing allows a motor to be restrained while engineers examine thrust, pressure and burn characteristics against the design envelope. Production qualification must also address repeatability: small changes to propellant preparation, internal geometry or materials can alter how a solid motor behaves. Neither an individual successful static fire nor an announcement of planned 2027 output establishes that the motor has passed integrated missile testing and acceptance.
X-Bow develops both conventional solid rocket motors and versions using additively manufactured propellant. Its production proposition includes adaptable grain geometries, shorter development cycles and shared manufacturing practices. The LCCM announcement does not specify which propellant manufacturing process the selected motor will use. That detail must remain open rather than assuming the new agreement automatically adopts every technology offered elsewhere in X-Bow’s portfolio.
Leidos has described LCCM as a development built on technology from its AGM-190A Small Cruise Missile. The larger weapon uses a modular airframe and a common Weapon Open Systems Architecture intended to support upgrades and integration without rebuilding every subsystem around a fixed proprietary interface. That modularity can help suppliers develop equipment against defined mechanical, electrical and software requirements, although the complete missile still has to pass system-level validation when a component or configuration changes.
A separate US Navy booster programme awarded to X-Bow earlier in October has a potential value of $69.7 million and covers a different missile requirement, including development and prospective production tooling. The Leidos arrangement is an Army LCCM supplier selection, without a disclosed financial value or volume. Although the company can draw on common propulsion expertise, the two programmes have distinct configurations, customers and qualification requirements.
X-Bow says it has secured six propulsion programme selections during 2026 and delivered more than 2,100 motors under a previous manufacturing contract. These figures describe the supplier’s existing work and experience; they do not measure LCCM throughput. Deliveries under the new arrangement will depend on completion of its development and acceptance stages, together with the rate at which Leidos can integrate qualified motors into finished weapons.
Increasing motor output requires reliable propellant inputs, case and nozzle manufacture, testing capacity and traceability across repeated builds. The Army missile programme adds another potential demand on those processes as Leidos moves towards its planned 2027 production start. A qualified booster and a validated complete missile will be separate milestones; the first provides a component the second must demonstrate can operate within its approved flight envelope.
