How France’s propulsion test site is supporting Europe’s aviation engine future

Amid the push for cleaner, quieter, and more efficient propulsion systems, France’s DGA Essais Propulseurs test center has become a key node in Europe’s civil and military engine development ecosystem. 

Part of the Direction générale de l’armement (DGA), the Essais Propulseurs center is one of nine specialized testing facilities across France. Located in Saclay, southwest of Paris, it focuses exclusively on aerobic propulsion systems – and unlike many national facilities, it serves both military and civil projects. Around two-thirds of the work currently involves military engines, with the remaining third dedicated to civil programs. 

While DGA Essais Propulseurs may be less well-known than the DGA’s missile testing range in Biscarrosse, it plays an equally critical role in securing France’s and Europe’s aeronautical sovereignty. 

“Our technical installations are open not just to French aircraft and engine manufacturers, but also to international players,” Pierre-Marie Michel, Senior Propulsion Technician at DGA Essais Propulseurs, told AeroTime at the Paris Air Show 2025. “We regularly work with Rolls-Royce, for example, to support EASA certification. We’ve also supported Boeing programs through ONERA, and even Chinese platforms.” 

Most of the clients, though, about 85 to 90%, come from Europe. 

The facility is equipped to conduct high-performance testing at the component, module, and full-engine level. Among its key capabilities are altitude test cells capable of simulating conditions ranging from -55°C to +160°C. The site hosts tests on high-pressure compressors, combustion chambers, and high-pressure turbines, including for heavy-lift helicopter engines such as the one developed through a joint venture between Fiat Avio, MTU, and Safran. Another area of expertise is icing trials.  

“We’re currently working on tests for Airbus Helicopters and Safran’s turboshaft engines,” Michel added. 

In line with France’s national strategy, the DGA is also closely involved in upstream research and technology development, including under the CORAC framework. Projects currently focus on engine decarbonization, SAF compatibility, and reducing environmental impact, both in emissions and noise. 

“Whether it’s for military platforms or the next generation of sustainable civil aircraft, propulsion remains a strategic capability,” Michel summarized. “And our role is to provide the testing infrastructure and expertise needed to get there.” 

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