Otto Reveals Plan for Hydrogen-Powered 19-Seat Celera Aircraft

The distinctive oval-shaped fuselage of the Celera aircraft could be well-suited to storing large quantities of hydrogen fuel.

Otto Aviation's Celera 500L aircraft. — With a hydrogen propulsion system from ZeroAvia, Otto Aviation is planning a 19-seat version of its 6-seat Celera 500L aircraft. (Image: Otto Aviation)

By Charles Alcock • Managing Editor

June 15, 2022

Otto Aviation this week confirmed plans for a 19-seat, hydrogen-powered version of its Celera aircraft that could be operated on flights of up to 1,000 nm. The Celera 750L is a stretched version of the 500L model that the U.S. company has in development. In a June 15 announcement, it said ZeroAvia will integrate its ZA600 hydrogen-electric powertrain as an alternative propulsion system to the Red A03 diesel engine being used for the 500L.

The Celera features an innovative laminar-flow design that Otto says will deliver exceptional range for the six-seat 500L of around 4,500 nm at cruise speeds of 391 knots. The company has not provided more details about the projected performance for the 750L.

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