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The EcoPulse aircraft demonstrator makes first hybrid-electric flight

Download: Printable PDF Date: 05 Dec 2023 10:00 (UTC) categories:
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The EcoPulse aircraft demonstrator makes first hybrid-electric flight - Airlines publisher
Tatjana Obrazcova
Country: France Aircraft: Airplanes

EcoPulse, the hybrid-electric distributed propulsion aircraft demonstrator jointly developed by Daher, Safran and Airbus to support aviation decarbonization roadmap, has successfully performed its first flight test in hybrid-electric mode. The demonstrator flew with its ePropellers activated, powered by a battery and a turbogenerator. EcoPulse took off from Tarbes Airport on November 29, at 10:32 hrs CEST for a test flight which lasted approximately 100 minutes. During the flight, the crew engaged the electric propellers and verified the proper functioning of the demonstrator's flight control computer, high-voltage battery pack, distributed electric propulsion and hybrid electric turbogenerator. EcoPulse' first hybrid flight is the culmination of several technical milestones, including extensive ground tests and 10 hours of flight tests of the aircraft with the electrical system inactive.

 Eric Dalbiès, Safran’s Executive Vice President Strategy and Chief Technology Officer, commented: “We confirmed today that this disruptive propulsion system works in flight, which paves the way for more sustainable aviation. The lessons learned from upcoming flight tests will feed into our technology roadmap and strengthen our position as leader in future all-electric and hybrid-electric propulsive systems.”

 Sabine Klauke, Chief Technical Officer at Airbus, said: “This is a major milestone for our industry and we’re proud to have powered the EcoPulse demonstrator first flight with our new battery systems. High-energy density batteries will be necessary to reduce carbon emissions from aviation, whether for light aircraft, advanced air mobility or large hybrid-electric aircraft. Projects like EcoPulse are key to accelerating progress in electric and hybrid electric flight, and a cornerstone of our aim to decarbonize the aerospace industry as a whole.”

Pascal Laguerre, Chief Technology Officer at Daher, stated: “The flight campaign will give Daher invaluable data on the effectiveness of the onboard technologies, including distributed propulsion, high-voltage batteries and hybrid-electric propulsion. We’re working to converge practical and significant know-how on design, certification and operation to shape our path toward more sustainable aircraft for the future.”

Unveiled at the 2019 Paris Air Show, EcoPulse is one of the major collaborative projects in Europe in the field of aviation decarbonization. It is supported by CORAC  and co-funded by DGAC through France Relance and NextGeneration EU. The demonstrator aims to evaluate the operational advantages of integrating hybrid-electric distributed propulsion, with specific emphasis on CO2 emissions and noise level reduction. This disruptive propulsion architecture enables a single independent electrical source to power several electric motors distributed throughout the aircraft.

Based on a Daher TBM aircraft platform, EcoPulse is equipped with six integrated electric thrusters or e- Propellers (supplied by Safran), distributed along the wings. Its propulsion system integrates two power sources: a turbogenerator, i.e. an electric generator driven by a gas turbine (supplied by Safran), and a high- energy density battery pack (supplied by Airbus). At the heart of this architecture is a Power Distribution and Rectifier Unit (PDRU), responsible for protecting the high-voltage network and for distributing the available electrical power, as well as high-voltage power harnesses (both provided by Safran). The battery pack designed by Airbus is rated at 800 Volts DC and can deliver up to 350 kilowatts of power. The demonstrator also benefits from the aerodynamic and acoustic integration expertise of the European aircraft manufacturer. Airbus also developed the Flight Control Computer permitting aircraft maneuvers using the ePropellers, and synchrophasing to support future aircraft acoustic recommendations.

Ecopulse aircraft demonstrator will be showcased during the Green Aero Days organized in Pau (France) on December 6-7, 2023.

 





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