UAV & Drones
Cranfield Aerospace Launches Zero Emission Hydrogen Drone ST5 Stingray
CAeS unveils ST5 Stingray, a hydrogen-electric drone with Blended Wing Body design for long-endurance zero-emission missions.

A New Era for Zero-Emission Aviation: The ST5 Stingray Unveiled
The landscape of unmanned aerial systems (UAS) witnessed a significant development at the Dubai Airshow in November 2025, as Cranfield Aerospace Solutions (CAeS) officially unveiled the ST5 Stingray. This launch marks a strategic pivot for the UK-based innovator, transitioning the company from its established role as a powertrain developer to a full-fledged aircraft manufacturer. The ST5 Stingray is not merely a new product entry; it represents a tangible demonstration of hydrogen-electric propulsion viability in a real-world, operational platform.
Designed as a “multi-role long-endurance” drone, the ST5 targets the specific requirements of the “Group 3” size category. This classification generally encompasses UAS with a maximum takeoff weight in the range of 600kg. By entering this sector, CAeS is positioning the ST5 as a zero-emission alternative to conventional combustion-engine drones that have traditionally dominated the market. The move underscores a broader industry trend toward decarbonization, proving that sustainable technology can compete with legacy systems in terms of utility and performance.
The significance of this release extends beyond the hardware itself. It serves as a critical proof-of-concept for the company’s larger ambitions in passenger aviation. By miniaturizing their hydrogen fuel cell technology for an uncrewed platform, CAeS aims to validate safety protocols, supply chains, and operational logistics. This “stepping stone” approach allows for the accumulation of flight hours and reliability data, which are essential for the eventual certification of larger, crewed hydrogen aircraft.
Engineering the Future: Design and Performance
The ST5 Stingray distinguishes itself through a distinctive Blended Wing Body (BWB) configuration. Unlike traditional aircraft designs that separate the fuselage from the wings, the BWB integrates these elements into a single lifting surface. This architectural choice is driven by aerodynamic efficiency and internal utility. With a wingspan of 5.5 meters (approximately 18 feet), the design minimizes drag while maximizing lift, a crucial factor for extending flight duration in electric aviation.
One of the most compelling advantages of this design is the internal volume it affords. CAeS reports that the ST5 offers up to 60% more payload volume compared to conventional tubular-fuselage aircraft of a similar weight class. This increase in usable space is vital for accommodating the hydrogen fuel cell system and hydrogen storage tanks without compromising the area available for mission-critical payloads, such as sensors, cameras, or light cargo. The propulsion system utilizes a hydrogen-electric fuel cell paired with a small battery hybrid system, which provides the necessary peak power for takeoff and climbing maneuvers.
Operational capabilities are further enhanced by the inherent characteristics of electric propulsion. The hydrogen-electric powertrain results in a significantly lower thermal and acoustic signature compared to combustion engines. This “stealth” aspect makes the platform particularly suitable for sensitive surveillance missions where noise discipline and low heat emissions are paramount. Furthermore, the only byproduct of the propulsion system is water vapor, ensuring that operations remain strictly zero-emission.
“The ST-5 is the first drone specifically designed to maximize the benefits of a hydrogen powertrain… The aerodynamic efficiency of the design, combined with the integration efficiency of our modular fuel cell technology, creates a step change in mission performance.”, Paul Clarke, CTO of Cranfield Aerospace Solutions.
Strategic Partnerships and Real-World Applications
The utility of the ST5 Stingray is already being explored through high-profile partnerships. CAeS has signed a Memorandum of Understanding (MoU) with the National Oceanography Centre (NOC), a leading research institution. This collaboration intends to deploy the ST5 for monitoring the North Atlantic Subpolar Gyre. The drone’s long-endurance capabilities are essential for this type of scientific research, which requires gathering data over vast, remote ocean areas, tasks that are often too dangerous, expensive, or logistically difficult for crewed aircraft.
In this context, the ST5 acts as a force multiplier for climate science. By providing a platform capable of Beyond Visual Line of Sight (BVLOS) operations, researchers can study climate tipping points with greater frequency and lower environmental impact. The ability to fly long-duration missions without the carbon footprint associated with traditional aviation aligns perfectly with the environmental goals of scientific monitoring organizations.
Beyond scientific research, the platform is being positioned for defense and logistics sectors. The increased payload volume presents opportunities for medical delivery or light cargo transport in remote or contested environments. Simultaneously, the backing by the Strategic Development Fund (SDF), the investment arm of the Tawazun Council in the UAE, highlights the international interest in this technology for security and surveillance applications.
“The Stingray UAV offers exceptional endurance and payload capacity, making it an attractive platform for advancing our goals of long-term, low-cost, zero-emission airborne data collection.”, Christine Gommenginger, Principal Scientist at NOC.
Market Context and Future Trajectory
The launch of the ST5 Stingray places Cranfield Aerospace Solutions in direct competition with established players in the UAV market. Traditional Group 3 drones, such as the Boeing/Insitu ScanEagle or Textron Aerosonde, rely on heavy fuels like JP-5 or JP-8. While these systems offer proven combat reliability and very high endurance, they lack the environmental credentials and low acoustic signatures of the ST5. Conversely, emerging competitors like HevenDrones are also exploring hydrogen, creating a nascent but rapidly evolving competitive landscape for green aviation.
Looking ahead, the ST5 is merely the first iteration in a planned family of autonomous aircraft. CAeS has outlined plans for the ST-18, a significantly larger variant boasting an 18-meter wingspan and a payload capacity of 2,000 kg. The operational data and technological maturity gained from the ST5 program are intended to directly de-risk the development of the ST-18 and the company’s parallel efforts to convert the Britten-Norman Islander passenger aircraft to hydrogen power.
Ultimately, the ST5 Stingray serves as a litmus test for the hydrogen economy in aviation. By solving the “chicken and egg” problem, creating immediate demand for hydrogen infrastructure through uncrewed systems, CAeS is attempting to accelerate the timeline for broader adoption. The success of this platform could dictate the pace at which zero-emission technology scales from drones to regional airliners.
FAQ
Question: What is the ST5 Stingray?
Answer: The ST5 Stingray is a multi-role, long-endurance drone (UAS) developed by Cranfield Aerospace Solutions. It features a Blended Wing Body design and utilizes hydrogen-electric propulsion.
Question: How does the ST5 compare to traditional drones?
Answer: The ST5 offers zero emissions and a lower acoustic signature compared to combustion-engine drones. Its unique design also provides up to 60% more payload volume than standard tubular-fuselage aircraft of similar weight.
Question: What is the primary power source for the ST5?
Answer: It is powered by a hydrogen fuel cell system, supplemented by a small battery hybrid system to handle peak power requirements.
Sources
Photo Credit: Cranfield Aerospace Solutions
UAV & Drones
FAA Launches BEYOND Phase 2 to Expand Drone Integration
The FAA announced BEYOND Phase 2 on Aug 27, 2026, adding up to 8 new participants to advance BVLOS drone operations.

The Federal Aviation Administration (FAA) announced the launch of Phase 2 of its BEYOND program on August 27, 2026, aiming to double the initiative’s size by adding up to eight new lead participants to advance drones integration into the National Airspace System (NAS).
In a press release issued by the agency, officials confirmed the expansion targets remaining regulatory and operational hurdles for beyond visual line of sight (BVLOS) operations, public safety missions, and on-airport drone activities. The program’s second phase was authorized under Section 920 of the FAA Reauthorization Act of 2024.
Building on Phase 1 milestones
The BEYOND initiative originally launched in October 2020 as the successor to the 2017 Unmanned Aircraft Systems Integration Pilot Program. During the first phase, participating entities generated substantial operational data to inform future rulemaking and safety protocols.
According to the FAA, Phase 1 participants logged more than 70,000 total flights. Of those, more than 48,000 were conducted beyond visual line of sight. This data collection is intended to help regulators understand the safety and scalability of complex drone operations across various sectors.
“As drone technology continues to advance, the FAA is focused on building a regulatory framework that is safe, scalable and grounded in real-world data,” FAA Administrator Bryan Bedford stated in the release. “Phase 2 of BEYOND will expand the partnerships and operations needed to address remaining challenges in beyond visual line of sight operations, public safety missions, on-airport operations and other complex airspace environments.”
Strategic expansion and regulatory push
For Phase 2, the FAA will select up to eight additional state, local, tribal, and territorial entities to serve as lead participants. These new partners will join existing participants in testing advanced Unmanned Aircraft Systems (UAS) capabilities in complex airspace environments.
U.S. Transportation Secretary Sean P. Duffy framed the expansion as a critical step for maintaining global competitiveness in aerospace technology and manufacturing.
“America leads the world in aviation, and this expansion will help keep it that way,” Duffy said. “Under President Trump’s leadership, this Department is cutting through barriers, advancing innovation and making sure the next generation of aviation technology is developed, tested and built right here in the United States.”
The BEYOND Phase 2 announcement follows a series of recent aviation modernization initiatives from the U.S. Department of Transportation (USDOT). On August 6, 2025, Duffy introduced a proposed rule for BVLOS drone operations, known as Part 108, designed to establish a consistent regulatory framework for scaling commercial drone missions. The department has also announced major infrastructure investments throughout August 2026, including a $615 million allocation for airport improvements and the opening of a new manufacturing plant for air traffic control modernization.
AirPro News analysis
We view the launch of BEYOND Phase 2 as a necessary bridge between the experimental data collection of the past decade and the impending codification of Part 108. By specifically targeting on-airport operations and public safety missions, the FAA is shifting its focus toward high-risk, high-value environments where integration with crewed aircraft is unavoidable. The addition of up to eight new municipal or tribal entities suggests the agency recognizes that local infrastructure and community acceptance remain significant bottlenecks for scaled UAS operations. The data gathered in this second phase will likely serve as the operational baseline for finalizing the Part 108 BVLOS rules.
Sources: Federal Aviation Administration
Photo Credit: Federal Aviation Administration
UAV & Drones
GA-ASI and Fujitsu Sign MOU for MQ-9B Support in Japan
GA-ASI and Fujitsu signed an MOU to establish domestic MQ-9B maintenance and operational support in Japan.

To support Japan’s expanding fleet of MQ-9B Unmanned Aircraft Systems (UAS), General Atomics Aeronautical Systems, Inc. (GA-ASI) and Fujitsu Limited signed a Memorandum of Understanding on August 27, 2026, establishing domestic maintenance and operational support capabilities.
Announced in a joint press release, the agreement aims to secure a sustainable operational foundation for the aircraft as the Japan Coast Guard (JCG) and Japan Maritime Self-Defense Force (JMSDF) increase intelligence, surveillance, and reconnaissance (ISR) missions across the country’s vast Exclusive Economic Zone (EEZ).
Expanding maritime surveillance in Japan
Japan has actively expanded its unmanned maritime surveillance capabilities in response to a complex regional security environment. The JCG began operating the MQ-9B SeaGuardian from JMSDF Hachinohe Air Base in October 2022 to complement existing manned maritime patrol Military-Aircraft.
The Japanese MQ-9B fleet initially operated under a Company-Owned, Company-Operated (COCO) model managed by GA-ASI. The program proved successful, leading the Japanese government to convert the leased aircraft into direct sales and place additional Orders, a milestone GA-ASI announced on March 24, 2026.
Domestic sustainment and technical collaboration
The shift to direct ownership necessitates a localized sustainment infrastructure. The MOU between GA-ASI and Fujitsu covers discussions on Avionics maintenance, parts management, maintenance training, and support services within Japan. The companies will also explore future technical collaboration regarding mission systems and systems integration.
Fujitsu brings 10 years of accumulated experience and expertise in providing maintenance and operational support for maritime patrol aircraft operated by the JMSDF.
Kenichiro Miyazaki, Head of the National Security Business Unit for Fujitsu Limited, outlined the company’s role in the new agreement.
“We are delighted to have signed this MOU with GA-ASI to explore collaboration opportunities related to the MQ-9B. Leveraging the technological capabilities Fujitsu has cultivated in the defense sector, as well as our extensive experience in maintenance and operational support, we will contribute to strengthening a sustainable maintenance framework for the MQ-9B in Japan. This MOU marks the first step toward advancing the collaboration between our companies.”
AirPro News analysis
We view the Partnerships between GA-ASI and Fujitsu as a necessary maturation of the MQ-9B program in Japan. The transition from a contractor-operated leasing model to direct government ownership requires a robust, localized sustainment network. By aligning with Fujitsu, which already possesses a decade of experience supporting JMSDF maritime patrol aircraft, GA-ASI mitigates supply chain risks and ensures higher operational availability for a platform that has become central to Japan’s maritime domain awareness strategy.
Sources: Fujitsu Limited
Photo Credit: GA-ASI
UAV & Drones
AIR Partners With Elmo Motion Control for Cargo UAS Propulsion
AIR integrates Elmo air-cooled servo drives into its 550-lb payload Cargo-Heavy Lift UAS, removing liquid cooling systems.

Israeli electric vertical takeoff and landing (eVTOL) manufacturer AIR announced a strategic partnership with Elmo Motion Control on August 25, 2026, to integrate air-cooled servo drives into its Cargo-Heavy Lift uncrewed aircraft system (UAS), eliminating the need for heavier liquid-cooling systems.
In a press release, AIR detailed how the integration of Elmo’s technology will reduce overall system complexity and weight. This weight reduction allows the uncrewed cargo platform to maximize its 550-pound payload capacity for defense, commercial, and humanitarian logistics operations.
Technical specifications and propulsion architecture
The AIR Cargo-Heavy Lift UAS utilizes eight electric propulsion motors. Under the new partnership, these motors will be powered by Elmo’s Gold and Platinum high-voltage (HV) servo drives. The drives operate in a master-slave configuration, supplying 210 amps at 805 volts to each motor.
Rami Chanan, vice president of sales and marketing at Elmo Motion Control, noted that the compact, air-cooled design of the drives delivers exceptional power density while removing the necessity for liquid cooling.
“At Elmo, we’re passionate about helping our customers turn bold ideas into reality, and our collaboration with AIR is a perfect example of what’s possible when innovation meets engineering excellence,” Chanan said.
Production milestones and defense applications
The partnership follows AIR’s transition from prototype to production for the cargo platform, which completed its first flight on April 15, 2026. The aircraft is designed with a dual-use architecture intended for flexible logistics, mid-mile delivery, maritime resupply, and rapid aid deployments. It features a flight endurance of one hour.
The U.S. Department of Defense (DoD) categorizes the AIR cargo aircraft as a Group 4 UAS. According to the company, over 25 units of the Cargo-Heavy Lift UAS have been ordered and paid for to date.
AIR chief executive officer Rani Plaut emphasized the operational readiness of the platform and the role of the new propulsion components in meeting regulatory and customer standards.
“Working with Elmo will ensure that the future of autonomous flight and unmanned logistics are as safe as possible, while maintaining capabilities and meeting requirements across defense, commercial, and humanitarian needs,” Plaut stated.
Expanding supplier network
The Elmo Motion Control agreement is the second major supplier partnership AIR has finalized in 2026. On June 3, 2026, the manufacturer selected Dynon Avionics as the exclusive avionics provider for its entire aircraft portfolio, which includes both the Cargo-Heavy Lift UAS and the AIR ONE personal eVTOL.
According to reporting by AVweb, Dynon customized its SkyView HDX platform to manage electric propulsion and energy management specific to AIR’s aircraft architecture.
AirPro News analysis
Thermal management remains a critical bottleneck in the development of high-payload electric aircraft. By transitioning to an air-cooled servo drive system, AIR is addressing one of the primary weight penalties associated with high-voltage electric propulsion. Liquid cooling systems require pumps, reservoirs, and fluid lines, all of which add mass and introduce potential points of failure. If Elmo’s air-cooled drives can reliably manage the thermal loads of an 805-volt system during sustained hover and forward flight, we expect this architecture will yield measurable improvements in the aircraft’s payload fraction and operational reliability in austere environments.
Sources: AIR via PR Newswire
Photo Credit: AIR
-
Technology & Innovation6 days agoSkyband Systems M100 LRU Validates GNSS Jamming Protection
-
MRO & Manufacturing5 days agoBoeing SPEEA Engineers Reject Contract, Authorize Strike
-
Military Technology6 days agoSaab Unveils A3-001 Supersonic Stealth Drone Concept
-
Business Aviation5 days agoFTAI Aviation Closes $2B Warehouse Financing for 2026 SPV
-
Business Aviation6 days agoSyberJet SJ30-2 Sets Transcontinental Speed Record
