Electra.aero has completed a fully integrated test of the proprietary hybrid-electric propulsion system for its low-carbon emissions, electric short takeoff and landing (eSTOL) aircraft.
The hybrid system is being integrated into Electra's piloted technology demonstrator aircraft, to demonstrate and test Electra's eSTOL performance and fuel burn savings. The technology was first developed for Electra's nine-passenger aircraft and will later be scaled to larger models.
Hybrid-electric propulsion is Electra's first step on a path to zero-emissions air mobility, used initially, the company says, because it is the only sustainable technology that can meet range requirements for the regional air mobility market. Electra's eSTOL aircraft is designed so that hydrogen and battery-electric propulsion systems can be used in the future when those technologies are commercially viable. To support these long-range goals, Electra is exploring green hydrogen with its partner Plug Power, the leading provider of hydrogen fuel cell turnkey solutions.
"Tightly coupling airframe and propulsion systems is the hallmark of Electra's unique and scalable approach to providing net-zero emissions for regional and transport-category aircraft by 2050,” notes JP Stewart, Electra's vp and general manager. “Electra's eSTOL aircraft uses this patent-pending technology for the urban and regional aircraft market, allowing a reduction of the five billion tons of CO2 created by inefficient ground transport in personal cars every year."
Testing of the hybrid-electric system took place at Electra's propulsion development facility in Switzerland. Electra's hybrid system uses a combination of high-power battery packs and a turbogenerator to power eight electric motors and propellers.
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