Gen-ee: the French electric regional aircraft designed to use 11 times less energy

While airlines seek to reduce emissions through isolated adjustments, one French start-up is betting on redesigning the regional aircraft from the ground up.

Rather than simply changing the fuel or refining flight paths, the Gen-ee project proposes a fully electric aircraft with a radically different shape. It is intended to carry 19 passengers, fly 500 km and, according to its creators, use up to 11 times less energy than today’s regional aircraft.

An electric aircraft that breaks with convention

Founded in 2019 in the Saint-Étienne area, French company Eenuee has chosen to focus on one of aviation’s less glamorous segments: short regional flights linking mid-sized towns, mountainous areas and remote regions. These are precisely the routes where aircraft attract the greatest criticism for generating excessive pollution while delivering limited profitability.

The Gen-ee is being developed for this market segment. It is designed to:

• carry up to 19 passengers;
• fly roughly 500 km using fully electric power;
• operate from existing aerodromes without major construction work;
• take off from lakes and rivers in an amphibious hydrofoil-equipped version.

With a “flying wing” architecture and a lifting fuselage, the Gen-ee aims for aerodynamic efficiency that is difficult to achieve with conventional aircraft.

Its first flight is scheduled for 2029. This is an ambitious target, but one supported by a partnership with Duqueine Group, a composites specialist brought in specifically to speed up the aircraft’s structural engineering.

Why “11 times less energy” is not empty marketing

At first glance, the claim that it will use 11 times less energy than a combustion-powered regional aircraft may seem excessive. However, Eenuee’s team identifies three technical foundations supporting this objective.

Flying-wing aerodynamics (BWB)

The Gen-ee uses the BWB, or Blended Wing Body, concept, in which the fuselage almost merges into the wings. Rather than relying on the conventional tube-shaped body, the aircraft’s central body also produces lift. This reduces non-lifting surface area and removes junctions that disrupt airflow.

According to the engineers, its lift-to-drag ratio reaches 25, a figure above that of most current regional aircraft. Lower drag means less energy is needed to maintain cruise flight.

Fully electric propulsion

Combustion engines lose a substantial amount of energy as heat and noise. By comparison, a well-designed electric propulsion chain can approach 90% efficiency, according to the project team.

This does not, by itself, solve the challenge posed by battery weight, but it considerably cuts energy losses between storage and the propellers’ driving force.

Lower mass and a simpler structure

The Gen-ee is designed to take off at 5.6 tonnes. Within the same CS-23 certification category, maximum mass could reach 8.6 tonnes. In other words, the design deliberately retains a weight margin.

This difference results from three main choices:

Factor	Impact on the project
Extensive use of carbon-fibre composites	A lighter structure without sacrificing stiffness
High-performance aluminium in metallic components	Strong mechanical resistance at lower mass
Unpressurised cabin	A reduction of around 40% in structural mass

An extra kilogram stays with the aircraft throughout its service life and adds to emissions. That is why there is such an obsession with weight reduction and structural simplicity.

Multi-surface capability: from runway to lake without changes

One of the Gen-ee’s most unusual features is its amphibious version. Instead of conventional floats, the aircraft will use hydrofoils - submerged wings used on racing boats to “lift” the hull out of the water.

In practical terms, the aircraft will be able to accelerate across the water until the hydrofoils create enough lift to reduce drag and make take-off easier, in a process similar to a runway take-off run.

This creates new possibilities:

• linking isolated regions in lake-rich countries such as Canada and Finland;
• connecting islands where building a full airport would not be economically viable;
• serving extensive river areas, including broad rivers and reservoirs.

Unlike floatplanes, which require specialised maintenance, Eenuee’s proposal is to keep the aircraft capable of landing on both runways and water without dismantling parts or making complicated adjustments.

A regional aviation model without heavy infrastructure

Gen-ee’s creators see a clear gap in the market: communities unable to financially support a conventional air route, but which also lack efficient rail connections or good-quality roads.

In this context, it matters that an aircraft can operate from:

• small, minimally equipped aerodromes;
• mountainous areas, such as France’s own Auvergne-Rhône-Alpes region;
• short runways and simple passenger-handling facilities.

The required infrastructure would centre on:

• secure, covered areas for boarding and disembarkation;
• regional maintenance centres;
• electric charging stations inspired by solutions already used in the automotive industry.

There would be no need for enormous terminals, air bridges or monumental hangars. The intention is to fit operations into existing secondary aerodromes, adapting only what is essential for safety and passenger service.

From laboratory to flight: the route to 2029

There is a considerable gap between a digital concept and a certified aircraft. Eenuee is seeking to reduce that risk through a strategy of gradual validation.

Reduced-scale testing

The team is currently working with 1:7-scale demonstrators, which help assess aerodynamic behaviour, control and stability. The next stage will involve a 1:4 demonstrator, closer to the eventual full-size aircraft and also designed with industrial considerations in mind.

These prototypes make it possible to identify critical issues before major investment is made in tooling, assembly lines and certification.

European certification and safety

The Gen-ee will be certified under CS-23 regulations, which apply to light and regional aircraft. The process includes:

• detailed risk assessments;
• structural and flight simulations;
• physical testing of components and systems;
• ongoing collaboration with European civil aviation authorities.

The company expects to formally begin the certification process and secure DOA, or Design Organisation Approval, in 2027, alongside construction of the first full-scale prototype.

What a lifting fuselage means in practice

For those accustomed to the classic tube-and-wing layout, a lifting fuselage may sound abstract. In this configuration, the fuselage resembles a large, thick wing when viewed from the side. The transition from the central body to the wings is smooth, with almost no distinct break.

This brings benefits, but it also creates challenges:

• pitch control, meaning nose-up and nose-down movement, is likely to rely on elevons rather than a conventional rear stabiliser;
• the internal cabin must be redesigned because the usable volume is no longer a simple tube;
• the internal structure is more complex, as it must withstand aerodynamic loads across the entire surface.

In return, this architecture allows passenger seating, luggage and battery placement to be reconsidered, potentially improving both comfort and aircraft balance.

Risks, battery limits and future scenarios

Batteries remain the biggest constraint. A range of 500 km covers a significant share of European regional flights, but it cannot replace long domestic or international routes. It therefore requires a specific air-network model built around short, frequent and carefully planned services.

One genuine risk is that battery technology advances more slowly than anticipated. If energy density does not improve at the expected pace, compromises will be necessary: fewer passengers, reduced range or longer charging times.

On the other hand, the BWB layout and lifting fuselage could be scaled up for larger aircraft if batteries improve. The engineers themselves mention additional applications, including medical evacuation, humanitarian missions, light freight transport and even defence uses.

For aviation followers, a few terms are worth noting. “Finesse 25” means that, for every metre the aircraft loses in altitude, it travels 25 metres horizontally while gliding. A hydrofoil, meanwhile, is a type of underwater “wing” which, as speed increases, lifts a hull - or in this case helps take some of the aircraft’s weight out of the water.

If the timetable is maintained, the Gen-ee could become a real-world test of a concept that has appeared in academic studies for decades: the low-emission commercial flying wing. It could also help establish whether the combination of electric propulsion, composites and a lifting fuselage can work beyond the drawing board, facing daily maintenance, rain, ice, delays and pressure to keep costs low.