hydrogen-electric propulsion

Dornier 228 fuel cell aircraft hydrogen fuel cell regional aviation sustainable aviation ZeroAvia

Cleared Direct Aug 7, 2026

ZeroAvia's Hydrogen-Electric Powertrain, the Dornier Testbed, and Whether a Fuel Cell Can Really Replace the Turbine on a Regional Airplane

ZeroAvia's hydrogen-electric powertrain has genuinely flown, but volume, cryogenics, and infrastructure make it a late-2020s story at best.

Vector

Cleared Direct Jul 29, 2026

ZeroAvia, the Hydrogen-Electric Powertrain, and the Dornier That Flew Over the Cotswolds on a Fuel Cell

How ZeroAvia's hydrogen-electric Dornier 228 flight proved fuel-cell propulsion can power real regional aircraft - and the hurdles that remain.

Vector