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“Hydrogen is a breakthrough technology for decarbonizing aviation. Given its high energy content and its ability to propel aircraft without emitting carbon, it represents a key avenue that ISAE-SUPAERO has been exploring for several years. Given South Korea’s technological lead in this field, the organization of a Franco-Korean workshop on hydrogen for aeronautics represents an opportunity to share best practice and the latest research into the use of hydrogen on board, particularly cryogenic hydrogen”. Rather than being a forum for discussing the future of air transport, this scientific workshop aims to tackle the technological challenges associated with hydrogen propulsion, by giving the floor to those who are actually doing it, rather than those who are putting forward hypotheses or definitive opinions without any experimental proof. This is why Korean speakers from the best industrial and research centres, as well as French speakers from the academic and industrial worlds, will come together to share their discoveries. For ISAE-SUPAERO, committed to training our future engineers in environmentally-friendly techniques, this workshop is a springboard for strengthening our scientific exchanges with Korea and federating the French ecosystem committed to the decarbonization of aviation.

Hydrogen presents a major opportunity to decarbonize aviation by replacing fossil paraffin, avoiding thousands of tonnes of CO2 emissions, and actively combating global warming. While gaseous demonstrators have flown, current focus is on liquid hydrogen. This fuel offers three times the energy density of paraffin and produces only water vapour, but it introduces major technical constraints. Key challenges include managing extreme cold (-253°C), securing cryogenic tanks, mitigating leak risks, and establishing new refuelling logistics, all of which were topics of discussion at the recent Franco-Korean workshop. The event, co-organised by ISAE-SUPAERO and the Korean company Hylium Industries, brought together major players from both countries, including Airbus, Safran and Liebherr Aerospace, Absolut Hydrogen, H3 Dynamics, H2Pulse, DELAIR, CT Engineering, ARESIA, AKIRA, FINIS TERRAE and others. Quentin Barascude, Research and Technology Manager at H3 Dynamics presented on Hydrogen-powered drones, this session presented the concrete applications of hydrogen in light air mobility, with drones capable of flying twice as long as battery-powered ones.

Join Research and Technology Manager Quentin Barascud as he unveils the innovations and breakthrough developments H3 Dynamics is achieving with its specialized fuel cells for drones and aircraft.

Join Aircraft Program and Digital Engineering Manager, Enric Jimerez and Principal Simulation Engineer, Thomas Gillard as they share H3 Dynamics' digital strategy. They demonstrate how Siemens' Simcenter is used to create highly accurate simulation models and Digital Twins of H3 Dynamics' fuel cells, and outline the company's ambitious plans for integrating AI.

H3 Dynamics, an aerospace hydrogen fuel cell systems developer and XSun, the global leader in solar- electric unmanned aerial systems (UAS) are announcing a strategic partnership to develop world’s first solar-hydrogen-electric UAS. Both based in France, XSun and H3 Dynamics are starting their collaboration to develop a unique “tri- brid” solar, hydrogen and battery power system, using a smart power management solution that optimizes the aircraft’s available energy at all times. While the sun is available, ultra-thin wing-integrated solar PV cells contribute power to the overall power system, batteries provide peak power during take- off, and a miniaturised hydrogen fuel cell system provides the main cruise power. As on-board micro-grid system, the unique power system will enable record endurance for heavier UAS (VTOL, STOL or HTOL) able to navigate at lower altitudes.

H3 Dynamics hydrogen aviation experts are headed to Marseille for Meet4Hydrogen to pitch our pioneering work in green aviation.

H3 Dynamics is announcing a major technological leap today with the launch of a new aero-compliant fuel cell stack capable of delivering 0.4MW of electric power from a single unit. To illustrate the significance of this development, now only three such stacks are sufficient to achieve over 1.2MW power, enough to power a medium sized passenger aircraft. When compared to any other solution in the market, the total system weight at this power level can be reduced by 50%. With size and weight reduced at the power system level, electric-powered aircraft can now fly further and carry more weight. Since 2021, H3 Dynamics’ team in Toulouse has designed stack and system modifications that able to meet stringent aerospace requirements including special environment conditions, high levels of safety and reliability. The AEROCELL® 400KW makes propulsion or auxiliary power possible for more than one type of aircraft. This includes single stack as well as multi-stack configurations for larger scale 50-100 seater regional electric aircraft. Based at the heart of Europe’s aerospace industry in Toulouse France, H3 Dynamics has been developing different balance of plant elements and aircraft-specific configurations that allow the such fuel cells to operate different speeds, altitudes and within different volume and weight constraints. In an effort to further reduce the weight of each power module, H3 Dynamics is applying alternative materials and system designs to increase power density while ensuring optimal performance, including at high altitude. H3 Dynamics is already actively working with aircraft OEMs globally including Airbus UpNext, the EU-backed program Hypotrade led by Pipistrel and NLR, Qdot Technology, Sea Cheetah, Lyte Aviation and several other programs to be announced soon. The company’s existing AEROCELL® fuel cell product line for aviation includes 50kW, 150kW, 200kW and now 400kW options, addressing a wide variety of aircraft - from unmanned systems to eVTOLs, light business jets, and regional single aisle aircraft. H3 Dynamics is standardizing key components to facilitate adoption while ensuring compliance with current aerospace standards and the future certification criteria for airborne hydrogen electric power systems. The company is also planning to start an aviation certified production capability of the world’s most powerful and aero-compliant hydrogen-electric power systems in France by end of 2025. "There is a significant requirements and certification gap between off-the-shelf fuel cell systems available on the market today, and what is expected from the aerospace sector. We are now beyond the technology validation stage, and we are now in the process of setting up a new European value chain within the zero emission hydrogen aviation industry.” said Taras Wankewycz, CEO H3 Dynamics. H3 Dynamics is active is several certification working groups including the Alliance for Zero Emission Aviation (AZEA), an initiative from the European Commission, as well the WG-80 from EUROCAE, a leading voice on aviation standards and certifications. From inception in 2015, H3 Dynamics has been engineering aerospace products, rather than hydrogen products - bringing hydrogen technologies to the right level of performance and safety acceptance, with the right integration and packaging standards.

Miami, (FL, USA) and Toulouse (France), September 30, 2024 – US-based Sea Cheetah Corporation has entered a strategic partnership with Toulouse-based hydrogen solutions expert H3 Dynamics, a winner of the Monaco Prize for Innovation in Renewable Hydrogen and Transportation, to develop the world’s first hydrogen-electric wing-in ground effect vessel and an eco-system of fueling points. Sea Cheetah provides a transportation ecosystem centered around its state-of-the-art Wing-in-GroundEffect (WIGE) vessel, which leverages proven technology to travel in and outside of ground effect at speeds exceeding 135 knts (250 kph / 155 mph). Flying a few meters above water, Sea Cheetah vessels connect coastal and island regions at a fraction of the time and cost of existing maritime transportation. Sea Cheetah stands out through its unmatched payload capacity and extended operating range. Although the SEA CHEETAH WIGE looks like an aircraft, it will be classified and operated as a marine vessel. This distinction significantly impacts the certification process and time to market. Since the U.S. Federal Aviation Administration (FAA) only regulates vehicles flying above 50 feet, WIGE vessels fall outside the FAA's jurisdiction. The company is collaborating with the Coast Guard and other national maritime organizations to certify the vessels in accordance with the International Maritime Organization (IMO) WIGE ship classification as of May 18, 2018 (MSC.1/Circ.1592). By working closely with H3 Dynamics, Sea Cheetah will boost its hydrogen-electric propulsion system capability and achieve a fuel economy far beyond fossil powered systems. “Our hybrid hydrogen-powered powertrain enables Sea Cheetah’s WIGE vessels to achieve range and payload capacities that were not possible before with batteries, creating more applications and usability for such vessels in different parts of the world,” added Taras Wankewycz, CEO of H3 Dynamics. The partnership will also deploy small, decentralized green hydrogen production systems named Sea Cheetah H2Hub™ and H2Hub Micro™ modules, to support rapid fueling and quick vessel turnaround. “By combining our two companies’ advanced technologies into one platform, Sea Cheetah vessels will now be able to carry 3 times more payload than competing air- and watercraft, 10 times faster than boats, and 10 times more fuel efficient than aircraft,” stated Serge Markoff, Founder and CEO of Sea Cheetah.

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