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A concise update on the HERA project’s Use Case B (UCB) concept for hybrid‑electric, hydrogen‑powered regional aviation, detailing Airbus Defence & Space’s progress in advanced aircraft configuration, enabling technologies, and system‑level architecture. It outlines the UCB’s top‑level requirements—distributed propulsion, liquid‑hydrogen storage, fuel‑cell systems, and operational targets such as a 500 NM design range and 80‑passenger payload—and highlights HERA’s overarching objectives, including a 50% reduction in fuel burn and up to 90% emissions reduction relative to 2020 state‑of‑the‑art aircraft, supported by contributions from the wing, fuselage, hybrid powerplant, and sustainable fuels. The summary of synergies across Clean Aviation projects underscores the integrated innovation ecosystem behind UCB advancements, while the document reviews the status of key enabling technologies—from high‑efficiency wings and high‑lift systems to structural health monitoring, flight‑control architectures, and ice‑protection solutions—and provides updates on aerodynamic optimization, fuselage design, distributed powerplant integration, electrical and thermal management systems, and hydrogen tank and fuel‑cell architectures. The report concludes with planned next steps, including final concept selection by end‑2026, further aerodynamic and noise‑impact simulations, continued integration of propulsion and thermal systems, and early certification considerations, positioning UCB as a cornerstone concept for future climate‑neutral regional aviation.