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General Atomics Electromagnetic Systems (GA-EMS) announced the successful test of its Long Range Maneuvering Projectile (LRMP) at the U.S. Army Yuma Proving Ground, saying flights fired from an M777 howitzer achieved key flight milestones and yielded data to support extended-range demonstrations.

During tests conducted in August, GA-EMS fired multiple LRMP rounds from an M777 howitzer using M231 powder charges. Company statements say the rounds demonstrated crucial mechanical and aerodynamic functions, including sabot separation, de-spin stabilization, wing deployment, and a controlled descent. GA-EMS also said recent test flights matched predictive models and produced data intended to support upcoming demonstrations at significantly increased ranges.

The LRMP is a winged, precision-guided 155mm artillery round with deployable aerodynamic control surfaces and onboard guidance. The design allows the munition to actively maneuver in flight and perform controlled descents to engage both static and moving targets. The company described the LRMP as capable of operating in GPS-denied or degraded environments.

GA-EMS materials and subsequent company messaging emphasized the LRMP’s ability to extend the reach of existing 155mm artillery systems. The controlled artillery round can hit targets from 120 kilometers away in GPS-denied environments. The company framed the capability to increase the standoff reach and precision of mass-produced artillery, potentially affecting how conventional forces plan long-range fires.

Officials and analysts will likely examine how the LRMP’s maneuverability and guidance features could alter targeting doctrine for 155mm systems, especially in contested or degraded navigation environments. The round’s compatibility with existing tube artillery platforms, demonstrated with an M777 howitzer in the August test, is a central point in GA-EMS’s presentation, suggesting the company sees the LRMP as a retrofit option for current inventories rather than a solely new-platform munition.

“This milestone reflects our commitment to delivering disruptive technologies for precision artillery,” Scott Forney, president of GA-EMS, said in the company release. “As the U.S. faces rising threats from near-peer adversaries and increasingly contested environments, affordable, mass-produced artillery is critical. LRMP meets that need while proving its ability to perform in extreme conditions and reshape long-range firepower,” he added.

Program Status and Service Interest

GA-EMS positions the LRMP as supporting modernization goals across multiple services and as a scalable, field-proven solution for future battlefield applications. The company also noted that the U.S. Navy awarded a contract in December 2024 to boost LRMP development for maritime use, indicating interest in adapting the capability for shipboard or littoral scenarios.

The company’s announcement framed the LRMP within a broader portfolio that includes electromagnetic systems, hypersonics, and precision-guided munitions. GA-EMS said its technologies span domains from undersea to space and include power generation, energy storage, missile defense, and laser systems.

Technical and Operational Considerations

GA-EMS described several technical milestones achieved during the August firings, including reliable sabot separation upon launch, de-spin stabilization to control initial projectile rotation, deployment of wings to generate lift and control, and the ability to perform a controlled descent phase to guide the projectile toward the target.

According to the company statement, flight performance closely matched pre-test predictive models, supplying engineers with telemetry and performance data to refine guidance algorithms and aerodynamic control logic for longer-range demonstrations.

While the company emphasized the LRMP’s capability in GPS-denied settings, the announcement did not disclose detailed guidance architectures, sensor suites, or exact methods for navigation and targeting in denied environments. Nor did the release provide specifics on production timelines, unit costs, inventory integration plans, or the exact scope and value of the Navy contract awarded in December 2024.

Implications for Artillery Modernization

If fielded at scale, LRMP-like munitions could expand the operational flexibility of 155mm artillery by enabling missions at ranges far exceeding conventional projectiles, potentially allowing maneuver commanders to engage high-value targets while reducing reliance on aircraft or cruise missiles for certain strike profiles. The company’s emphasis on affordability and mass production signals its intent to position LRMP as a complement to existing strike options rather than a niche capability.

At the same time, the operational utility of guided, long-range artillery will depend on sensor-to-shooter integration, target identification and battle network resilience, particularly in GPS-denied conditions. How the LRMP integrates with existing fire-control systems, forward observers, unmanned sensors and targeting architectures will be critical to assessing its battlefield impact.