Hanwha and GA-ASI Partner to Develop Next Gen Gray Eagle STOL UAS

Forging the Future of Aerial Defense: Hanwha and GA-ASI’s Landmark UAS Partnership

In a significant move that reshapes the landscape of unmanned aerial systems (UAS), South Korea’s Hanwha Aerospace and U.S. defense giant General Atomics Aeronautical Systems, Inc. (GA-ASI) have formalized a strategic Partnerships. The agreement, signed during the Association of the U.S. Army’s 2025 Annual Meeting and Exposition (AUSA 2025), solidifies their commitment to co-develop and co-produce a next-generation, runway-independent UAS. This collaboration marks a pivotal evolution in the U.S.-South Korea alliance, transitioning from a traditional customer-supplier relationship to one of joint innovation and production in the high-stakes defense sector.

The core of this venture is the development of the Gray Eagle Short Takeoff and Landing (GE-STOL) aircraft. This isn’t just another Drones; it represents a technological leap forward designed to operate in environments where traditional airfields are unavailable or compromised. The ability to launch and land from semi-improved surfaces like dirt roads, open fields, or even naval vessels dramatically expands its operational flexibility. This partnership aims to harness the strengths of both companies to deliver a versatile and powerful asset for modern defense forces, with co-production planned in both South Korea and the United States.

This collaboration is not merely about building a new piece of hardware. It’s a strategic initiative with far-reaching implications for the global defense market, industrial ecosystems in both nations, and the future of unmanned warfare. By pooling resources and expertise, Hanwha Aerospace and GA-ASI are not only accelerating the development of the GE-STOL but also setting a new standard for international defense cooperation. The project is poised to create jobs, foster technological advancement, and strengthen the strategic ties between two key allies.

A Strategic Alliance for a New Generation of Defense

The agreement between Hanwha Aerospace and GA-ASI is built on a foundation of shared responsibilities and mutual Investments. It outlines a clear path forward for bringing the advanced GE-STOL system from concept to reality, leveraging the unique capabilities of each partner to create a product that is greater than the sum of its parts. This joint venture is a testament to a forward-thinking approach to defense manufacturing and international security.

Defining the Roles and Responsibilities

Under the terms of the contract, the division of labor is clearly defined to maximize efficiency and expertise. GA-ASI, a world leader in unmanned aircraft, will be responsible for the final system integration, ensuring all components work together seamlessly to meet rigorous performance standards. Their deep experience with the Gray Eagle platform provides a solid foundation for this next-generation variant.

Hanwha Aerospace will contribute its extensive Manufacturing and technological prowess by supplying a range of critical components. These include the aircraft’s engines, landing gear, fuel systems, Avionics, and mission equipment. Furthermore, Hanwha is set to establish a final assembly and manufacturing facility in South Korea, a move that will not only build domestic industrial capability but also streamline the production process for regional and global markets.

This synergy is designed to de-risk the development process and expedite the delivery of the UAS. A GA-ASI-funded prototype is already undergoing flight testing, which provides valuable data and reduces the lead time for producing an operational aircraft. This proactive approach underscores the commitment of both companies to bring this advanced capability to the field as quickly as possible.

“GA-ASI and Hanwha are committed to investing in this project and building development and production capabilities in South Korea. We’ll be leveraging the expertise of both companies to quickly bring the Gray Eagle STOL to global customers,” David R. Alexander, President of GA-ASI

Economic Impact and Industrial Vision

The partnership extends beyond the battlefield, promising significant economic and industrial benefits for both South Korea and the United States. The establishment of co-production facilities is expected to generate new jobs and stimulate economic growth in the defense and aerospace sectors of both countries. For South Korea, it represents a major step in fostering a robust domestic UAS industry ecosystem.

Hanwha Aerospace has committed to a substantial financial investment to realize this vision, planning to invest more than 750 billion KRW in development and production facilities for the GE-STOL and its engines. This investment signals a long-term commitment to the unmanned systems market, which Hanwha projects will reach a global value of 5 trillion KRW by 2040. The company aims to position itself as a comprehensive UAS provider, capable of handling everything from design and production to maintenance.

This strategic alignment is championed at the highest levels of Hanwha Group. As Vice Chairman Dong Kwan Kim stated, unmanned systems are viewed as a “strategic pillar for the future of defense.” The collaboration with GA-ASI is seen as a vehicle to strengthen sovereign defense capabilities, expand Korea’s footprint in the global UAS market, and ultimately contribute to a more resilient ROK-US alliance.

Unpacking the GE-STOL: A Technological Leap in Unmanned Aviation

The Gray Eagle Short Takeoff and Landing (GE-STOL) system is engineered to overcome one of the most significant logistical challenges in modern military operations: the reliance on prepared runways. Its design as a medium-altitude, long-endurance (MALE) UAS provides persistent surveillance and strike capabilities, while its STOL functionality unlocks a new level of operational freedom.

The Game-Changer: Runway Independence

The defining feature of the GE-STOL is its ability to operate without traditional airfields. This capability allows it to be deployed from a wide variety of semi-prepared surfaces, including dirt roads, beaches, and compact fields. This drastically reduces the logistical footprint required for aerial operations and enables forces to project power in austere or contested environments where infrastructure is limited or has been destroyed.

This flexibility has already been put to the test in a series of successful demonstrations. In a landmark event in November 2024, a prototype of the aircraft, known as Mojave, successfully conducted flight operations from the South Korean Navy’s amphibious landing ship, the ROKS Dokdo. This test highlighted the system’s immense potential for maritime and amphibious missions. Additional trials have included operations from the British aircraft carrier HMS Prince of Wales (2023), live-fire testing in Arizona (2024), and successful takeoffs and landings from dirt strips (2023).

The GE-STOL is designed as a multi-mission platform, capable of performing a wide array of tasks. These include Reconnaissance, Surveillance, and Target Acquisition (RSTA), counter-UAS operations, and Manned-Unmanned Teaming (MUM-T), where it can operate in concert with manned aircraft to enhance situational awareness and mission effectiveness.

“Co-producing GE-STOL in South Korea and the U.S. will create jobs and help Hanwha secure capability in related fields as well as foster our domestic (Korean) UAS industry ecosystem,” Jae-il Son, President and CEO of Hanwha Aerospace

An Accelerated Path to Deployment

The development timeline for the GE-STOL is ambitious, reflecting the urgency and commitment behind the project. The partnership is targeting a Maiden-Flight for a demonstrator aircraft in 2027. This rapid schedule is made possible by leveraging the progress already made on GA-ASI’s internally funded prototype, which has significantly reduced initial development risks.

Following a successful demonstration phase, the program aims to begin initial customer deliveries as early as 2028. This accelerated timeline means that armed forces could see this next-generation capability in the field in the near future, providing a timely response to evolving security challenges. The co-production model is expected to further streamline manufacturing and ensure a steady supply chain to meet global demand.

By combining Hanwha’s manufacturing excellence with GA-ASI’s proven systems integration expertise, the partnership is well-positioned to meet these aggressive targets. The GE-STOL program is not just an idea on a drawing board; it is an active, well-resourced development effort on a clear path to becoming a key asset in the arsenal of modern militaries.

Conclusion: A New Horizon for Defense Collaboration

The partnership between Hanwha Aerospace and GA-ASI to develop the GE-STOL is more than a simple business agreement; it is a strategic convergence of technology, industry, and national security interests. It represents a forward-looking model for international defense cooperation, moving beyond transactional relationships to create a truly integrated team focused on innovation. The runway-independent capability of the GE-STOL addresses a critical operational need, promising to enhance the effectiveness and reach of military forces around the world.

Looking ahead, this collaboration is set to have a lasting impact. It will bolster the industrial bases of both South Korea and the United States, create high-tech jobs, and foster a new generation of engineering talent. For the U.S.-ROK alliance, it signifies a deeper, more resilient partnership built on shared technological advancement. As the GE-STOL moves toward its 2027 maiden flight, the world will be watching a new chapter in unmanned aviation unfold, one defined by flexibility, power, and unprecedented international cooperation.

FAQ

Question: What is the GE-STOL?
Answer: The Gray Eagle Short Takeoff and Landing (GE-STOL) is a next-generation, medium-altitude, long-endurance Unmanned Aerial System (UAS) designed to operate from semi-improved surfaces without the need for traditional runways.

Question: Who are the main partners in this project?
Answer: The project is a co-development and co-production partnership between South Korea’s Hanwha Aerospace and U.S.-based General Atomics Aeronautical Systems, Inc. (GA-ASI).

Question: When is the GE-STOL expected to be available?
Answer: The maiden flight of a demonstrator aircraft is planned for 2027, with the goal of beginning initial customer deliveries in 2028.

Sources

• Hanwha Aerospace Official Press Release