NederDrone - a hydrogen-powered VTOL UAV

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The NederDrone is a drone that can take off and land vertically using hydrogen. Thanks to the fixed-wing design and the use of hydrogen, the NederDrone was able to stay airborne in stable flight for over 3.5 hours
Credit:
TU Delft
“The NederDrone: A hybrid lift, hybrid energy hydrogen UAV”
Christophe De Wagter; Bart Remes; Ewoud Smeur; Freek van Tienen; Rick Ruijsink; Kevin van Hecke; Erik van der Horst