Leonardo DRS successfully neutralized Group 1 and 2 unmanned aerial systems (UAS) with its SGT STOUT mission equipment package during a recent US government test event.
The demonstration showed that the maneuver short-range air defense (M-SHORAD) system can respond to evolving airborne threats using software updates alone.
Using its existing configuration, the vehicle detected and engaged simulated small enemy drones through updated detection and fire-control capabilities.
Under the Pentagon’s classification system, Group 1 drones weigh up to 20 pounds (9 kilograms) and have a service ceiling of 1,200 feet (366 meters). Group 2 systems weigh not more than 55 pounds (25 kilograms) and can reach altitudes of up to 3,500 feet (1,067 meters).
Reliable ‘Upgrade Path’
Leonardo said the trial showcased a rapid, low-cost approach to increasing counter-UAS lethality against emerging threats.
Test data will feed into the US Army’s broader Mobile Low, Slow UAS Integrated Defeat System program and support the development of future software-driven air defense capabilities. Leonardo serves as an industry partner on the program.
“SGT STOUT was engineered from the start for modernization, so capability can evolve as the threat evolves,” said Aaron Hankins, senior vice president and general manager of Leonardo DRS Land Systems.
“This event highlights an upgrade path that emphasizes speed, safety, cybersecurity-by-design, and operational interoperability.”
The SGT STOUT M-SHORAD
Built around an open architecture, the SGT STOUT M-SHORAD allows troops to integrate passive sensors, artificial intelligence decision tools, and advanced computing without requiring a major hardware retrofit.
The counter-UAS is mounted on the Stryker eight-wheeled armored fighting vehicle, providing protected, formation-based air defense for moving ground forces rather than static point defense.
SGT STOUT carries dual launchers capable of firing Stinger and Hellfire precision missiles. It is also armed with an XM914 30mm chain gun and an M240 7.62mm machine gun for engaging low-flying drones.
Since its inception in 2021, the US military has fielded several hundred SGT STOUT platforms, initially positioning the weapons to counter larger Group 3 UAS, or those weighing up to 1,320 pounds (599 kilograms), as well as fixed-wing and rotary-wing aircraft.
