Ampaire’s hybrid electric demonstrator completes record 12-hour flight

Ampaire Inc., a leader in hybrid electric aircraft systems, recently demonstrated the endurance capabilities of its hybrid Electric EEL demonstrator aircraft.

The aircraft carried out a record endurance flight on December 10 2023, in Camarillo, CA.

Ampaire believes the flight establishes a new record for hybrid electric aircraft endurance, clocking a total flight time of 12 hours exactly, with over 2 hours of fuel and battery reserves remaining.

“Through this groundbreaking mission, Ampaire has shattered the conventional boundaries of electrified flight, underscoring our relentless pursuit of transformative vehicle performance and commercial utility,” said Ampaire CEO Kevin Noertker.

“Our unique hybrid electric solutions deliver unparalleled operating economics and unlock endurance and operational flexibility critical to our customer’s needs.”

“The indomitable spirit of innovation within the entire Ampaire team propels us forward on this journey toward a sustainable future. It is a testament to our lasting commitment to pioneering excellence.”

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Image Credit: Ampaire

Concluding a Successful Year


This remarkable endurance flight serves as the crowning achievement, concluding a year marked by consistently successful missions spanning across Canada, Alaska, Arizona, and California.

The aircraft has demonstrated unwavering performance throughout each journey, solidifying its reliability and adaptability in diverse environments.

The EEL demonstrator aircraft has been pivotal in advancing high-powered electronics, inverters, motors, and associated systems.

The EEL aircraft has served as the backbone for Ampaire’s innovative AMP-H570 AMP Drive™ hybrid electric propulsion unit currently flying in Ampaire’s Eco Caravan.

This has achieved a remarkable 50 to 70 percent reduction in fuel consumption and emissions compared to traditional Pratt & Whitney PT6 turboprop engines. 

Ampaire's Electric EEL Takes Flight into Silicon Valley.
Photo Credit: Ampaire

About Ampaire


Los Angeles-based Ampaire was formed in 2016 with a mission to become the world’s most trusted developer of practical, compelling electric aircraft.

The company has developed a platform of hybrid electric and electric propulsion technologies applicable across numerous aircraft types.

Upgrading existing aircraft to hybrid electric power is Ampaire’s rapid, capital-efficient approach to making commercial electric air travel a reality with available technology.

Ampaire has scored a series of industry firsts since the 2019 maiden flight of its Electric EEL technology testbed aircraft.

Notable achievements include the longest flight for a hybrid electric aircraft–1,135 statute miles en route from Los Angeles to Oshkosh, Wisconsin.

The maiden flight of its Eco Caravan aircraft was conducted in 2022, making it the world’s largest hybrid electric airplane.

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Ampaire's hybrid electric EEL demonstrator aircraft has successfully completed a record endurance test flight of 12 hours duration.
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