Europe’s Mahepa Program Flies Fuel-Cell Propulsion Test Aircraft

Batteries and fuel cells fuel by gaseous hydrogen power the electric drive in the Hy4 central propulsion nacelle.
Credit: Mahepa program
A European team has flown a hydrogen-powered test aircraft as part of a program to develop a modular approach to hybrid-electric propulsion. The Hy4 is the most powerful fuel-cell-driven aircraft yet to fly. Equipped with improved hydrogen fuel cells, the Hy4 made its first flight in November from...
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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