Hydrogen fuel cells: Practical for aircraft now?
Hydrogen fuel cells have long been discussed as a potential power source for vehicles, including aircraft, and researchers at the German aerospace center, the DLR, believe that technical barriers can be overcome in the near term to make hydrogen a practical fuel source. Speaking at the first annual Sustainable Aviation Foundation symposium in Redwood City, California, the DLR's Josef Kallo told attendees that research on practical hydrogen cells is much further along than many people realize.
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