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Fuelling with hydrogen

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Fuelling with hydrogen
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The hydrogen tank slung under the right wing has a capacity of either 2 or 4.9 kg. The fuel cell is slung under the left wing. The fuel cell system used to power the Antares delivers up to 25 kilowatts of electrical power and, when flying in a straight line, the aircraft only requires about ten kilowatts of power. The total efficiency of the drive system from tank to powertrain, including the propeller, is in the region of 44 percent – making it about twice as efficient as conventional propulsion technologies based on combustion processes.

Credit: DLR.
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