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Electra.aero said it has completed a fully-integrated test of its proprietary hybrid-electric propulsion system for its eSTOL aircraft.
An Electra spokesperson told eVTOL.com that the hybrid system was sized to support flight testing with its two-seat piloted technology demonstrator, serving as a testbed to develop the power and energy management systems to support its future nine-passenger aircraft.
“The hybrid system is a serial hybrid where both the turbogenerator and battery power the electric motors in the high-power take-off and landing phase, and the turbogenerator charges the battery during cruise — enabling the aircraft to fly farther and operate free of charging infrastructure,” the spokesperson said.
Propulsion system testing took place at Electra’s propulsion development facility in Switzerland. In parallel with these tests, Electra said it is currently building the technology demonstrator airframe and performing integration testing, and will move forward with flight testing once it has finished all safety and performance relevant integration tests. The company previously told eVTOL.com that it is on target to flight test its two-seat demonstrator later this year.