Dufour Aerospace Aims to Compete with Medevac Helicopters

Dufour Aerospace expects the first flight of its Aero3 hybrid electric vertical takeoff and landing aircraft test article to take place by the end of this year or early 2023.

Thom Patterson

Tuesday, March 01, 2022 at 12:27 PM ET

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Aero3, from Dufour Aerospace, is being developed as a hybrid eVTOL emergency medical transport and rescue aircraft. [Courtesy: Dufour Aerospace]

Key Takeaways:

Medevac operations using traditional helicopters face significant challenges due to hazardous low-altitude flying, large rotors, and the necessity of landing in unconventional areas.
Dufour Aerospace is developing the Aero3, a specialized electric vertical takeoff and landing (eVTOL) aircraft, specifically designed to overcome these challenges for emergency medical services (EMS).
The Aero3 features a unique tilt-wing design with six smaller proprotors, eliminating traditional helicopter blades and tail rotors, making it safer, quieter, more cost-effective, and capable of landing in diverse environments.
This hybrid-electric aircraft prioritizes payload capacity for medical personnel and equipment, aims to expand air ambulance networks for critical "golden hour" treatment, and addresses the growing global demand for medical air transport.

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Medevac helicopter pilots are all too aware of the challenges involved in their missions. They often have to land and take off from areas not intended for use as heliports, including parking lots, farmland, and empty side streets.

They also have to fly very low—maintaining altitudes under 1,000 feet, where dangerous infrastructure, such as power lines, light poles, antenna towers, and trees can get in the way—with potentially disastrous results. Keeping proper situational awareness surrounding tail rotors and main blades—often measuring 35 to 50 feet long—can also be challenging.