Alaka'i's works on liquid hydrogen eVTOL:
-Lower weight than batteries allows longer 4 hours range
-1000 ponds payload
-10 m refuel time
-Certification planned for 2026
H2 is particularly suited for drones and evtol:
-longer range due to lower weight than batteries
-higher flight ceiling (no problem with lower temperatures)
-Liquid H2 will only increase this advantages
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