Pie Aeronefs SA
Electric Aviation Pioneer


Pie Aeronefs is a Swiss all-electric aircraft manufacturer.

Through distributed electric propulsion, our zero carbon emitting airplanes shall surpass the performance of conventionally powered competitors.

Thanks to an innovative design, our aircraft are optimized for the electric energy system.

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Zero emissions

Our all-electric aircraft will produce zero CO₂ directly when operated.

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Swiss Made

Our aircraft are manufactured in Switzerland with an emphasis on local procurement when possible.

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We are working on new concepts in order to improve our aircraft's autonomy and performances.

Stay connected
03-2020 Company creation
04-2021 Approval of the UR-1 project by the EAS and design of the UR-1
01-2022 Making the UR-1
01-2023 Design of the UG-2
01-2024 First flight of the UR-1 and design of the UG-2
04-2024 Air Race E Championship
07-2024 Manufacture and first flight of the UG-2
01-2025 Approval of the UG-3 project by the EASA DOA and design of the UG-3
01-2028 First flight of the UG-3
06-2028 First sales of the UG-3


To achieve the objective of carbon-neutral aviation, Pie Aeronefs relies on the development of critical technologies designed to mitigate the limitations of current battery systems. We have developed an innovative method to mount the battery inside our wing for structural benefits. We have similarly conceived  an ultra-effective active high lift system which will be showcased in our prototype: the UG-2. 

ug-2 top view

Proprietary lightweight fire-protective material

The innovative approach of our design includes a cutting-edge material to reduce the risk of battery fires in flight.

Improved range performance

We have obtained a sensible improvement in the range performance of our aircraft by designing an original airframe optimized to sustain the batteries weight.

Electric motor

Powerful from low RPMs, quiet and cost-efficient, an electric motor does not require heating time or need to rotate when waiting on aerodromes. This considerably reduces environmental and noise impacts.

Wing battery pack

The energy storage is located in the wings. Developed to measure, our batteries are efficient and durable. Surrounded by aerospace grade fire-resistant materials, we guarantee occupant safety.

Latest News


Pie Aeronefs will temporarily suspend its operations

The Pie Aeronefs team thanks everyone who followed the development of the project with interest, the company will suspend its activity

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Newsletter – October / November 2023

During the last period, Pie Aeronefs has achieved important accomplishments in working in UR-1 and UG-2 projects

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Pie Aeronefs completes the fuselage of its first prototype, the racing plane UR-1

We faced several challenges with the completion of the UR-1 racing aircraft fuselage, but now we have finally completed production of this part

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Newsletter - September 2023

In this issue of our monthly recap, we talk about the latest news from our workshop and our engineering team. We solved some issues with the fuselage of our first prototype, the UR-1, and we carried out the study of the feasibility of our second prototype, the UG-2

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We are proud to be supported by our partners, sponsors and technical sponsors with the common goal of developing a greener aviation.

What they think of us

Pie Aeronefs SA is demonstrating a pragmatic and ambitious approach to developing new technologies for all-electric aircraft with great potential.

Tine Tomazic - Chief Technical Officer

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