In a groundbreaking achievement for sustainable aviation, the European Union Aviation Safety Agency (EASA) has certified Safran’s Engineus 100 electric motor, marking it as compliant with Special Condition SC E-19. This certification is the first of its kind for electric and hybrid propulsion systems, setting a significant milestone in aviation’s decarbonization journey.
The Engineus 100 will debut on Diamond Aircraft Industries’ eDA40, an all-electric training aircraft. Achieving certification followed an intensive process involving 1,500 hours of motor testing and over 100 hours of flight trials. The journey to this milestone began eight years ago, with Safran and EASA collaborating to define specific airworthiness rules for electric propulsion systems.
A Revolutionary Design for Electric Aviation
The Engineus 100 motor integrates power and control electronics directly into its design, boasting an air-cooling system and delivering a maximum power output of 125kW. With an impressive weight-to-power ratio of 5kW/kg, this innovation promises remarkable efficiency. Safran is preparing to scale production to over 1,000 units annually by 2026, utilising semi-automated production lines in Niort, France, and Pitstone, UK.
The initial certified model, the Engineus 100 B1, is tailored for two-seater light aircraft. However, Safran has ambitious plans to extend the range to power outputs between 89kW and 180kW, paving the way for applications in regional transport aircraft carrying up to 19 passengers. Safran also envisions the Engineus motor playing a vital role in the hybridisation of future commercial aircraft engines capable of accommodating up to 150 passengers.
Partnering for Progress
Aircraft developers such as Aura Aero, Bye Aerospace, CAE, Electra, TCab Tech, and VoltAero are already planning to incorporate the Engineus 100 into their designs. This certification marks a significant step toward the production and commercial launch of these innovative aircraft.
Industry Leaders Speak
“We have just witnessed a key moment in the history of aviation. By obtaining certification for the Engineus 100 electric motor, Safran has achieved a world first. This event represents an immense source of pride,” said Bruno Bellanger, CEO of Safran Electrical & Power.
Rachel Daeschler, EASA’s Certification Director, emphasised the importance of this achievement. “This was a fascinating project for EASA and the first test of our Special Condition designed for the certification of hybrid and all-electric propulsion. We congratulate Safran for this key achievement, which is paving the way for the electrification of aviation, for small airplanes and beyond.”
Certification Challenges and Innovations
EASA initiated the development of regulations for innovative propulsion systems in 2017, recognising the limitations of traditional certification standards for thermal engines. The Special Condition SC E-19 was introduced in April 2021 to provide performance-based requirements applicable to both aircraft and engine certifications.
The certification process for the Engineus 100 involved addressing unique challenges, including minimising fire risks associated with high-voltage systems. Safran designed specific tests to ensure safety, and extensive collaboration between EASA experts and Diamond Aircraft played a crucial role in achieving the certification.
The Engineus 100 racked up over 100 flight hours on prototype aircraft, demonstrating its readiness for market launch. With certification now complete, this electric motor sets the stage for a new era in aviation—one that prioritises sustainability without compromising performance.
IMAGE: Safran’s Engineus electric motor (Image: Anthony Guerra / Safran)
