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Airbus’s EcoPulse, a revolutionary hybrid-electric propulsion aircraft has concluded its test flights.

Thedemonstrator aircraft, developed jointly by Daher, Safran, and Airbus aims to test technologies that could help decarbonise air transport by 2050.

EcoPulse performed its first hybrid-electric test flight on November 29, 2023, from Tarbes–Lourdes–Pyrénées Airport. Since its maiden flight.

It has since accumulated 100 flight hours and performed some 50 test flights with the distributed hybrid propulsion system.

These tests enabled the demonstration of unprecedented onboard electric power levels for distributed electric propulsion, with a network voltage of approximately 800 volts DC and a power output of 350 kilowatts.

The flight tests yielded significant findings, including an objective evaluation of hybridization technologies' maturity, a performance assessment when integrated into the aircraft, and an identification of operational limitations.

One result of the tests was a finding that synchro-phasing of the ePropellers (electric motors) can reduce interior noise.

This synchro-phasing is an additional benefit of the innovative flight control computer, primarily designed to manoeuvre the aircraft – substituting traditional control surfaces –by adjusting the distribution of electric power among the ePropellers.