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2016 DLR HY4
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Aircraft
Hydrogen as fuel
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DLR HY4 - Wikipedia
https://en.wikipedia.org/wiki/DLR_HY4
2016 DLR HY4
World’s first crewed liquid hydrogen plane takes off
https://thenextweb.com/news/world-first-piloted-liquid-hydrogen-plane-takes-off
2016 DLR HY4