DLR's HY4 Completes Its First Hydrogen Fuel Cell Flight
CONFIRMED85% CONFIDENCEDLR's[3] own press release and the EAA both date HY4's first official flight to September 29, 2016.
The German Aerospace Center's HY4, the world's first four-seat aircraft powered solely by a hydrogen fuel cell, made its first flight from Stuttgart Airport on September 29, 2016. The Future of Flight features it as a real prototype for zero-emission aviation.
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