Accelerating
Sustainable
Aviation.

We are Dufour Aerospace.

With over 30 years of experience in commercial helicopter operations, we understand the real world requirements of VTOL aviation.

Aero1
Full Electric Aerobatic Trainer
discover
Aero3
Next Generation of 8 Seater VTOL
discover
Aero2
Super Versatile VTOL Drone Platform
coming soon

Discover the technology that drives Dufour Aerospace.

Tilt-wing
technology

We are among the very few in the modern world that performed and demonstrated full transition and full flight envelope of tilt-wing aircraft. The behaviour is exactly as we expected: Smooth and stable transition, rapidly decreasing power demand already during transition, and efficient cruise flight. With this efficiency, tilt-wing aircraft are the way to go for electric flight, both in the manned and the unmanned world: Both our products Aero2 and Aero3 support high-standard, high-reliability operations such as Emergency Medical Services, Urban and Regional Air Mobility and Logistics.

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ELECTRIC 
PROPULSION

Electric propulsion has many benefits. Electric motors offer energy efficiency of 90% compared to 40% of combustion motors. They have fewer parts than conventional motors and therefore need only little maintenance and offer high reliability and safety. Electric powertrains offer more flexibility – due to their comparatively smaller size, electric motors can be positioned directly where power is needed, without the need to install complicated power transmission.

Comparison electric motor with combustion engine

2.25 x

Energy efficiency

0.2 x

Maintenance cost

0.1 x

Number of parts in powertrain

Hybrid approach

Electric aircraft have many advantages, but there are still limitations. Currently available battery technology does not (yet) provide the energy density necessary for long-range missions. Using a hybrid approach and therefore charging batteries while in flight compensates for this deficit. Additionally, it is especially important not only to take-off, but also to land with full or almost full batteries, as in the eventual case of a go-around the most lift power is needed. The hybrid approach also allows for appropriate reserve flight time and for an efficient load-unload battery management – finally resulting in longer battery life.

Flight Control
system & integrated avionics system

Key element of controlling future convertible planes and including them into autonomous drone operations or manned vertical mobility is an integrated and safe software system. Our team is one of very few who can control large scale tilt-wing aircraft throughout the full flight envelope and have telemetry data in real time. We can implement new commands and improved software directly and without any delay. As both our manned and unmanned tilt-wing products are based on the same software core, we can prove its reliability with thousands of real flight hours.

Fleet management

Whether it is SAP and Oracle for logistics, Galileo for airline transportation or your individual packet delivery to a remote mountain hut, for future manned and unmanned autonomous operating systems integration is key. Our own aircraft management platform allows the use of a simple tablet to operate our aircrafts whether manned or unmanned and integrate them to any existing system with ease. Our fully integrated flight management system will care for the flight management case and make the operation as easy and integrated as possible.

Seamless software integration

Electirc Propulsion has a variety of benefits. First needs very low maintenance and offers the highest relability in its class. Second, it outperforms any traditional fuelburning enigne by 150%, this allows us to construct VTOL-Aircraft a new way.

Latest News

September 8, 2021

Dufour Aerospace and Swiss Air-Rescue Rega announce development cooperation for innovative Aero3 eVTOL aircraft

August 23, 2021

Philippe Lutz joins Dufour Aerospace

August 18, 2021

Dufour Aerospace publishes specifications of Aero3, its tilt-wing eVTOL flagship aircraft

April 22, 2021

Dufour Aerospace receives funding from session.vc and existing investors to accelerate growth

March 31, 2021

Sascha Hardegger joins Dufour Aerospace

November 7, 2020

eVTOL safety from an operational perspective

Great ideas need great partners

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ABOUT:
With over 30 years of experience in Swiss commercial helicopter operations, we understand the real world requirements of VTOL aircraft. Our engineering team with years of aircraft construction experience is building aircrafts for rugged operations in harsh environments. Our patented combination of proven aerodynamic concepts with the latest technology makes our aircraft rock solid with unparalleled performance.