Distributed Propulsion TBM Takes Flight Under Hybrid Power

A Daher TBM equipped with a suite of 6 electric motors took its first flight, going up for 100 minutes as the crew established function checks of major systems.

The EcoPulse sports a hybrid powertrain, taking flight with a combined battery and turbogenerator arrangement that provides power to a series of electric motors mounted on each wing's leading edge. To power all those spinning props, the EcoPulse sports an 800 volt battery pack that can deliver up to 350 kilowatts of power, and keep them topped off with its turbogenerator to ensure the design does not suffer from the usual constraints of an all-battery aircraft.

“We confirmed today that this disruptive propulsion system works in flight, which paves the way for more sustainable aviation,” said Eric Dalbiès, Safran’s Executive Vice President Strategy and Chief Technology Officer. “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.”

“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,” said Sabine Klauke, Chief Technical Officer at Airbus. 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.”

“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,” commented Pascal Laguerre, Chief Technology Officer at Daher. “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.”

FMI: www.airbus.com, www.daher.com