Hydrogen-Powered Helicopter Projects Make Progress

Graham Warwick November 10, 2025
Unither Bioelectronics Caption – Under Project Proticity, Unither Bioelectronics conducted the first piloted hydrogen-electric-powered helicopter flight in May

Under Project Proticity, Unither Bioelectronics conducted the first piloted hydrogen-electric-powered helicopter flight in May.

Credit: Unither Bioelectronics
Having conducted the first piloted flight of a helicopter on hydrogen-electric propulsion in March, Canada’s Unither Bioelectronics is modifying its Robinson R44 proof-of-concept demonstrator to use liquid hydrogen. Flight testing is planned in 2026, Mikaël Cardinal, Unither vice president of...
Graham Warwick

Graham leads Aviation Week's coverage of technology, focusing on engineering and technology across the aerospace industry, with a special focus on identifying technologies of strategic importance to aviation, aerospace and defense.

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