VerdeGo Aero and Röder Präzision GmbH announced on June 14th that they have jointly introduced the SR-305-VDG aircraft engine, an engine optimized for hybrid-electric applications. The engine is designed to complement battery energy storage by converting liquid fuels (Jet-A, JP-8, SAF, e-fuels) into electricity, providing additional propulsive power for electric aircraft. This collaboration aims to enhance the performance of electric aircraft and promote more sustainable aviation practices.
The SR-305-VDG engine is the result of two years of testing and engineering development between VerdeGo Aero and Röder Präzision GmbH. Its key features include higher power output, reduced weight, and a smaller system volume, making it an ideal power source for a new generation of high-performance electric aircraft.

VerdeGo Aero’s VH-3 hybrid powerplant, equipped with the SR-305-VDG engine, will be showcased at AirVenture 2023, emphasizing its potential in supporting high-performance electric aircraft for various missions. The engine’s ability to use different types of liquid fuels enables aircraft to achieve higher energy densities, thereby extending their range and mission capabilities.
Eric Bartsch, CEO of VerdeGo Aero, highlighted the significance of this collaboration, stating that the partnership has enabled the delivery of a hybrid powerplant that meets the demands of electric aircraft manufacturers looking for more efficient and powerful solutions.
Jörg Erdmann, COO of Röder Präzision GmbH, expressed his excitement about the engine’s potential for hybrid-electric applications and how it could contribute to reducing carbon emissions in aviation through the use of sustainable aviation fuels.
Why it’s important: The introduction of the SR-305-VDG aircraft engine represents further progress by Verdego toward electrification and democratization of aviation. By offering a more efficient and sustainable power source, this collaboration has the potential to offer additional powerplant choices for aircraft configurators. As reported previously by TransportUP, this represents the company’s approach toward bridging the gap between the most advanced and efficient powerplant offerings of today and in the future.
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