Sponsored Post, Land Warfare

Mojave STOL and Gray Eagle® 25M: Complementary capabilities for the modern battlefield

Both aircraft are designed to evolve as threats and mission requirements change.

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GA-ASI’s Mojave STOL supports airfields without airports, allowing soldiers to find, track, and eliminate adversaries using improvised launch and recovery sites.
GA-ASI’s Mojave STOL supports airfields without airports, allowing soldiers to find, track, and eliminate adversaries using improvised launch and recovery sites.

A new, more challenging operational environment means the U.S. Army must field platforms that generate strategic advantages while conducting missions from the tactical edge.

Today’s battlefield is contested across all domains. The proliferation of low-cost, effective systems, as well as high-tech munitions, long-range missiles, and advanced air defenses, means platforms must operate effectively in denied conditions without imposing unsustainable costs or maintenance demands.

General Atomics Aeronautical Systems, Inc. (GA-ASI) offers two aircraft tailored to the Army’s need to operate in this threat environment, with the flexibility to adapt as those needs evolve: the Mojave Short Takeoff and Landing (STOL) aircraft and the Gray Eagle® 25M.

Although the aircraft share elements of the Gray Eagle family, they are optimized for different operational challenges. 

Mojave STOL is designed to deliver expeditionary access from austere locations, while Gray Eagle 25M offers the endurance and range necessary for the Pacific theater, along with the payload capacity to support the Army’s multi-domain operations concept.

Bringing Aviation Closer to the Mission

Mojave STOL is designed for missions where runways are undesirable, unavailable, damaged, or vulnerable. Its STOL capability enables operations from unimproved surfaces, including roads and dirt tracks, as well as from amphibious vessels.

Runway independence expands commanders’ options in remote or contested areas. The aircraft can operate closer to distributed forces, take on fuel and munitions at austere locations, and return to the fight without relying on airfield infrastructure.

This approach reflects an enduring operational lesson: in demanding environments, rugged, reliable, and plentiful platforms can provide an advantage over systems that are more complex, expensive, or difficult to maintain. 

Mojave STOL provides options for overwhelming mass at the right time and place while retaining key sensor and payload capabilities and supporting long-range, persistent mission profiles.

While modern electric and vertical-lift concepts offer tactical flexibility, their high unit costs, mechanical complexity, undetermined supply chain security, and maintenance burdens present challenges for sustained expeditionary operations driving cost, manpower, and risk.

Mojave STOL is built around a straightforward, time-tested aircraft, a proven design, and an established production and sustainment philosophy, enabling the flexibility to move with expeditionary forces while avoiding complex infrastructure demands.

Its ability to operate from smaller naval vessels also creates potential applications for maritime, contested logistics, and special operations missions.

Modernizing Gray Eagle for Contested Operations

Gray Eagle 25M is an extensively modernized version of the MQ-1C Gray Eagle, designed to support long-endurance missions in complex threat environments. Its roles include persistent, real-time threat detection/identification and support for long-range targeting operations.

A central feature of the aircraft is its Modular Open Systems Approach (MOSA) architecture. 

MOSA uses defined interfaces and modular components to help integrate new technologies more quickly and affordably. This open architecture approach is intended to help the Army respond to changing threats while reducing the time and cost associated with future upgrades.

Another significant improvement comes in the form of the expeditionary laptop-based ground control station and ground support equipment. This portable system eliminates the need for large, containerized GCS satellite systems, transport vehicles, and ground support equipment, reducing equipment weight by 130,000 pounds per platoon. 

Combined with the new, more powerful turbo-diesel Heavy Fuel Engine (HFE) 2.0, these improvements reduce field service representative and soldier workload while increasing maintenance-free operational periods, with a sustainment cost savings of roughly $200 million annually.

Gray Eagle 25M delivers critical RSTA capabilities for a decisive battlefield advantage.
Gray Eagle 25M delivers critical RSTA capabilities for a decisive battlefield advantage.

The EagleEye® multi-mode radar, for example, is designed to provide substantially greater range than legacy systems, with an increase of up to five times. 

Together, these capabilities support Gray Eagle 25M’s mission to maintain persistent awareness and contribute to decision-making in high-threat environments.

Complementary Aircraft for the Army

The two aircraft offer the Army a complementary range of capabilities.

Mojave STOL is optimized for expeditionary access, operational flexibility, and runway-independent operations in regions such as the Indo-Pacific, where forces cannot count on reliable access to paved runways.

Gray Eagle 25M is optimized for endurance, sensing, processing, and survivability in contested environments. Its advanced sensor suite, combined with tactics refined through millions of hours of combat operations by Gray Eagle and other GA-ASI aircraft, enables the platform to operate over long distances and remain effective in high-threat conditions.

Both aircraft are designed to evolve as threats and mission requirements change. 

Gray Eagle 25M and Mojave’s open architecture support the integration of new capabilities, helping maintain relevance across different areas of operation. What’s more, they cover the full breadth of conflict, from peacetime to large-scale combat operations, with adaptable, responsive, critical capability. 

Mojave STOL can likewise accommodate expanded payload options, including electronic warfare systems and air-launched effects.

Investing in Scalable Capability

Mojave STOL conducts short-field operations from a rough maneuver trail during a demonstration with Hanwha Aerospace in South Korea on September 16, 2026.
Mojave STOL conducts short-field operations from a rough maneuver trail during a demonstration with Hanwha Aerospace in South Korea on September 16, 2026.

GA-ASI has made manufacturing and engineering investments intended to support continued modernization and larger-scale production. 

Collaboration with Hanwha Aerospace is expanding production facilities and research and development activities, helping create the infrastructure needed to support scalable output.

The partnership is aimed at advancing Mojave STOL’s capabilities while supporting more affordable production. That means the Army will not necessarily have to choose between capability and mass.

In addition, GA-ASI’s existing millions of square feet of manufacturing infrastructure, skilled in-house workforce, and available capacity position the company to begin building and delivering aircraft today. 

By choosing Gray Eagle 25M and Mojave STOL, the Army would be investing in mature, adaptable capabilities designed for rapid delivery and scalable employment. 

Visitors to GA-ASI’s Booth 6619 at the Association of the United States Army’s Annual Meeting and Exposition can discuss with experts how these systems are prepared to support Army operations in today’s high-threat environments and adapt to the challenges ahead.

PHOTOS: AUSA 2026

PHOTOS: AUSA 2026

Attendees file in during the first day of the 2026 Association of the US Army annual conference in Washington, DC, on October 12, 2026. (Breaking Defense)
Patriot, who is expected to go to a wounded veteran when the dog’s training finishes, is happy to greet attendees outside the Shield AI booth on the show floor. (Breaking Defense)
A close-up look at a munition from Sierra Nevada's Brawlr (Battery Revolving Advanced Weapons Launcher Reconfigurable) air-defense system, as seen at the 2026 AUSA conference. (Breaking Defense)
A wider shot of Sierra Nevada's Brawlr air-defense system at the 2026 AUSA conference. (Breaking Defense)
Oshkosh's electric Joint Light Tactical Vehicle on the AUSA show floor Oct. 12, 2026. (Breaking Defense)
Hanwha Defense USA showed off its 155 mm artillery shells at the 2026 AUSA expo. (Breaking Defense)
AEO Night Hawk Systems displayed their surveillance assembly, with sensors honing in on bystanders at the 2026 AUSA conference in Washington. (Breaking Defense)
AeroVironment’s VAPOR is an all-electric, single-rotor vertical takeoff and landing (VTOL) helicopter unmanned aircraft system. Here it is suspended above attendees at the 2026 AUSA conference. (Breaking Defense)
Goodyear representatives brought a sturdy but very unusual "moon tire" for lunar exploration to the 2026 AUSA expo. (Breaking Defense)
Colt optics had one of the busiest displays, with dozens of attendees observing a wall of assault rifles with specialized optics at the 2026 AUSA expo. (Breaking Defense)
Cadillac brought its Formula 1 team racecar to the 2026 AUSA conference in Washington. (Breaking Defense)
AUSA mascots Sgt. Hero and George Washington descend the escalator at the 2026 annual conference. (Aaron Mehta / Breaking Defense)
Parker Hannifin showcased many of its components onboard the MDH Strategic Services Airwolf c-UAS system, which is shown here fixed atop the RCR 6WAP vehicle. (Breaking Defense)
General Atomics Aeronautical Systems Inc. and Hanwha Aerospace co-developed the Mojave short takeoff and landing (STOL) uncrewed aircraft, pictured here at the 2026 AUSA trade show. (Breaking Defense)
Hanwha Defense USA displayed a range of scale model armor and artillery systems on the AUSA show floor. (Breaking Defense)
BAE’s Multi-Domain Artillery Cannon System stands tall at the 2026 AUSA trade show in Washington, DC. (Breaking Defense)
The Ukrainian military’s 3rd Army Corps brought a variety of small drones to the 2026 AUSA trade show. (Valerie Insinna / Breaking Defense)
Kyiv-based defense tech firm Stellarion brought several fiber-optic drones to the 2026 AUSA expo. (Valerie Insinna / Breaking Defense)
Ukrainian defense firm Tencore showcased an amphibious unmanned ground vehicle called MAT1LDA (Mesa Associates’ Tactical Integrated Light-Force Deployment Assembly), which is carrying Tencore’s TerMIT ground robot, at the 2026 AUSA trade show. (Valerie Insinna / Breaking Defense)
Teledyne Qioptiq brought several thermal weapons sights including the Phoenix-XR (right) and the Dragon-C12 S (middle) to the 2026 AUSA conference. (Breaking Defense)
Israel Aerospace Industries’ and Sig Sauer’s Fire Storm 250 armed tactical quadcopter hangs above attendees of the conference. (Breaking Defense)
OverlandAI’s ULTRA autonomous ground system hosts a multi-mission hemispheric radar from Leonardo DRS, shown here at the 2026 AUSA expo. (Breaking Defense)
Leonardo DRS displays its Extended Mast Surveillance System, which features an exMHR radar system on a trailer platform with an extendable mast for a higher-altitude perspective. (Breaking Defense)
AeroVironment's Freedom Eagle-1 (FE-1) is marketed as a low-cost kinetic counter-UAV munition as well as a "long-range kinetic interceptor missile." (Breaking Defense)
BAE's AMPV-30 (Armored Multi-Purpose Vehicle) is shown here on the trade show floor at the 2026 AUSA conference in Washington. (Breaking Defense)
Here is the Javelin anti-tank guided munition system from RTX, as displayed with a fully-kitted soldier on the floor of the 2026 AUSA expo. (Aaron Mehta / Breaking Defense)
Diehl Defense's Cicada counter-drone munition is an electrically propelled missile that can feature a fragmentation warhead or a safety net. (Breaking Defense)
AeroVironment's Bullfrog M240 autonomous weapon system, seen here in the bed of a utility vehicle, has a range of 1,500 meters for defense against drone groups 1 through 3, according to AV. (Breaking Defense)
Leonardo DRS brought several vehicles and hardware to the 2026 AUSA conference, including the VIKING Uncrewed Ground Vehicle (left) equipped for air defense missions. (Breaking Defense)
Defense Secretary Pete Hegseth's remarks at the 2026 AUSA expo were livestreamed at Boeing's booth on the show floor. (Breaking Defense / Aaron Mehta)
L3Harris brought its T4 Robotic System, an all-terrain unmanned ground vehicle intended for explosive ordnance disposal and hazardous materials clearance, to the 2026 AUSA conference. (Breaking Defense)
GE Aerospace showcased several large engine components -- including this hybrid-electric turbogenerator for the MV-250 autonomous, hybrid-electric vertical takeoff and landing cargo drone -- at the 2026 AUSA expo. (Breaking Defense)
GM Defense's Autonomous ISV-Utility can accommodate up to five passengers as well as a wide range of equipment in the bed, including mortar systems, counter-drone as well as high-energy and electronic warfare systems. (Breaking Defense)
Illinois-based OTTO Engineering shared one of their hardened systems and associated equipment at the 2026 AUSA trade show. (Breaking Defense)
This is GM Defense's hybrid-powered Heavy Duty Tactical Truck, which is based on the Chevrolet Silverado. The truck includes a "silent" drive mode "to reduce acoustic and thermal signatures," the firm says at its 2026 AUSA display. (Breaking Defense)
This is the Tactical Firejet from San Diego-based Kratos Defense & Security Solutions, Inc., pictured on the show floor at the 2026 AUSA expo. The Firejet is marketed as a low-cost drone that can fly at 0.8 mach speed and with a range of 500 nautical miles. (Breaking Defense)
This is the DeepFires autonomous launcher from RTX, spotted on the show floor at AUSA 2026. It's an all-terrain, all-weather system that's transportable via C-130 cargo planes. (Aaron Mehta / Breaking Defense)
German defense firm Dynamit Nobel Defence GmbH (DND) showed shoulder-fired, anti-armor weapons at the 2026 AUSA expo. (Breaking Defense)