The dream of carbon-free flight is inching toward some reality.
The Federal Aviation Administration on Monday granted California-based Universal Hydrogen clearance to proceed with a first flight of its hydrogen-powered Dash-8-300 test airplane at Moses Lake, Washington.
On Friday, the aircraft began initial ground taxi tests and on Monday the propellers ran up to their full RPM. The FAA's grant of the special airworthiness certificate in the experimental category means that, provided the taxi tests go well, the plane could fly as soon as this month.