Helicopter with fuel cell propulsion flies for the first time (heise.de)

• Canadian company Unither Bioélectronique retrofits conventional helicopter with fuel cell drive.
• First flight successful on May 12, 2026.
• Milestone for emission-free aviation using hydrogen fuel cells.

"Canadian company Unither Bioélectronique has retrofitted a conventional helicopter with a clean fuel cell drive. The maiden flight was successful, marking a milestone in emission-free aviation."