VoltAero unveils Cassio 330 hybrid-electric production aircraft

Eco-friendly regional travel redefined with innovative design at Paris Airshow 2025

The production-ready Cassio 330, a hybrid-electric aircraft with advanced safety, modularity, and environmentally friendly propulsion that is intended for sustainable regional transportation, has been unveiled by VoltAero. Production is scheduled to begin in France at the end of 2025.

At the Paris Air Show 2025, which got underway on Monday, VoltAero, a French startup company, presented the production-ready Cassio 330, its latest electric-hybrid aircraft designed to revolutionise sustainable regional air transportation.

In a press statement, VoltAero says that the production configuration of the Cassio 330 reflects a series of design evolutions, shaped by VoltAero’s close collaboration with the European Union Aviation Safety Agency (EASA).

The statement adds that these changes simplify the aircraft’s path to airworthiness certification, aligning it with the latest EASA CS.23 standards for normal category airplanes. Central to the redesign is a new series-hybrid propulsion system, two Safran Engineus smart electric motors are mounted on either side of the aft fuselage, each driving a pusher propeller, while a thermal engine inside the fuselage acts as a range extender, recharging the onboard batteries during cruise.

“As we take another step toward the Cassio 330’s production, our strategy remains unchanged: using safe and efficient electric-hybrid propulsion and power technologies that are realistically available today, applying them to a conventional takeoff/landing aircraft for sustainable regional transportation using existing airport infrastructure,” says Jean Botti, CEO and Chief Technology Office, VoltAero.

VoltAero says that this architecture replaces the original parallel-hybrid design, which featured a single propeller powered by a combined electric and thermal engine. The new dual-motor setup not only enhances redundancy, placing the Cassio 330 in the multi-engine category, but also improves operational safety and simplifies certification.

According to the statement, the adoption of a T-tail, replacing the earlier twin-boom arrangement, further reduces potential damage risks and streamlines the airframe.

The statement adds that inside, the Cassio 330 retains a spacious cabin for a pilot and up to five passengers, with modularity for cargo and medevac missions. A large forward door ensures accessibility for all travellers, including those with reduced mobility.

Additionally, VoltAero’s purpose-built 2,400-sqm facility in Saint Agnant, France, will serve as the main production hub, with capacity for 150 aircraft annually.