Aviation Drivetrains

RTD for future hybrid and fully electric aviation drivetrains – from eVTOLs to single-aisle aircraft, we take your drivetrain from concept to product.

ADT hybrid-electric aviation drivetrain cutaway

Your Challenge: Power, Efficiency and Sustainability – All in One

As an eVTOL developer, aircraft manufacturer, propulsion system provider or aerospace supplier, you need drivetrains that deliver maximum power, reliability and efficiency – while being lightweight, quiet and low-emission. After nearly a century of turbine engine optimization, radical progress now requires rethinking through new drivetrain architectures and hybrid-electric propulsion concepts. ADT helps you achieve all of this – and more.

Hybrid-electric propulsion system architecture

Our Solution: Hybridization That Unlocks New Possibilities

ADT develops hybrid and electric propulsion systems tailored to your needs. The reduction of overall aircraft mass and fuel consumption is just one possible outcome – hybridization allows much more:

  • Simpler, more robust designs by eliminating complex mechanical mechanisms
  • Optimized performance through reduced engine design margins
  • Wide-range rotor speed variation
  • Enhanced manoeuvrability via electric boost
  • Lower operational costs through improved efficiency and higher performance – without compromising reliability

Our Approach: From Concept to Product – With You in Mind

Mission profile optimization of a hybrid-electric drivetrain

At ADT, we don’t just design drivetrains – we engineer them for your success. Using in-house tools, we perform comprehensive parametric optimization, considering entire mission profiles – both stationary and transient conditions. All optimization happens in the context of the whole engine and aircraft system to ensure every solution is tailored to your specific requirements.

From the earliest concept phase to the final product, efficient collaboration is key – the expertise of one company is not enough. That’s why we apply a systems engineering approach, working with a network of European partners in manufacturing, electric machines and power electronics. Together, we develop the optimal aviation drivetrain for eVTOLs, rotorcraft and aircraft.

Proven in Projects

Proven in funded R&D

exFan

exFan heat propulsor rendering

Thrust from waste heat: exFan develops a novel heat dissipation and recuperation system for fuel-cell-powered aviation – a Meredith-effect ducted heat exchanger that turns waste heat into up to 10% additional thrust.

Proven in funded R&D

Projektname 2

Kurzbeschreibung des Projekts: Ziel, Rolle von ADT, Programm (z. B. Horizon Europe), Ergebnis in 2–3 Sätzen.

Proven in funded R&D

Projektname 3

Kurzbeschreibung des Projekts: Ziel, Rolle von ADT, Programm (z. B. European Defence Fund), Ergebnis in 2–3 Sätzen.

Why Partner with Us?

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Proven Expertise

ADT is a trusted partner in European-funded research projects – from Clean Sky 2 to Horizon Europe and the European Defence Fund – working on the latest advancements in hybrid and fully electric aviation drivetrains.

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End-to-End Development

We define, optimize and develop fully/hybrid electric propulsion modules – from architecture studies to technology concept, from prototype to product.

From eVTOLs to commercial aircraft, from small manufacturers to large OEMs – ADT’s drivetrain technologies empower you to fly farther, cleaner and more efficiently.

Let us Build the Future of Flight – Together!

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