Otto Aviation has confirmed plans for a 19-seat hydrogen-powered version of the Celera 500L, dubbed
The Celera 750L is an elongated version of the 500L that is being developed by This week, ZeroAvia announced that it will integrate its ZA600 hydrogen-electric powertrain as an alternative propulsion system to the Red A03 diesel engine used in the 500L.
The six-seat Celera 500L has a different designwith laminar airflow, which Otto claims provides a range of 4,500 nautical miles at a cruising speed of 391 knots. The company did not provide further details on the 750L's predicted performance. However, according to ZeroAvia, the Celera 750L will provide even more competitive operating costs by reducing propulsion system maintenance costs.
In December 2020, Otto announced plansdevelop a zero emission version of the 500L and release it by 2027. That is two years after the first Celera model is due to be put into service.
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