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we are excited to announce our new sponsorship of CELLSIUS, a student initiative of ETH Zurich.

Starting in September, Montana Aerospace will support the team's Liquid H2 project, an ambitious initiative dedicated to developing a hydrogen-powered aircraft using liquid hydrogen technology.

Building on previous electric and gaseous hydrogen demonstrators, the students are now taking the next step towards a flight-capable liquid hydrogen propulsion system.

For Montana Aerospace, this partnership is about more than supporting an exciting student project. It is an opportunity to engage with engineering experts of tomorrow, exchange ideas, and contribute our industry experience to a project exploring technologies that could help shape the future of sustainable aviation.

Collaborations like these strengthen the connection between academia and industry and demonstrate our commitment to innovation, engineering excellence and developing the next generation of aerospace professionals.
— Vicky Welvaert, CHRO Montana Aerospace

Overview CELLSIUS Projects:

E-Sling 2020 - 2022

44 kWh Battery

Range: 160km

Maiden flight: 2022

E-Sling 2022 - 2026

Gaseous hydrogen

Range: 250km

Maiden flight: 2026 (planned)

Starting From 2025

Liquid Hydrogen

Range: 500km

Maiden flight: tbd

PROJect LH2 in Detail

Delivering Full Performance Across the Entire System & Integrable, Flight-Ready Packaging

Phase I
2026-2027

Adapt and/or redesign power electronics & integration/swap & ground testing

LH 2 Tank:

  • Develop/procure airworthy tanks

  • Test/optimize refueling cycles

  • Validate extraction

  • Validate valve box

  • Packaging

Full Power:

  • Continue testing and refining the system

  • Implement the heat exchanger

  • Bring the system up to full capacity
    (100 kW)

Integration:

  • Installing the tank and fuel cell system in the aircraft

Ground Testing

  • Testing the aluminum or stainless steel tank

Certification

  • Preparation for the first flight

Packaging

  • Design a system that can be integrated into an aircraft

  • A structure capable of withstanding the load cases defined in CS23

Maiden Flight:
End of 2028

Flight Testing:

  • Design a system that can be integrated into an aircraft

  • A structure capable of withstanding the load cases defined in CS23

Power Electronics:

  • Develop/procure the motor & inverter

  • Adapt the battery

Phase II
2027-2028

We’re thrilled to have Montana Aerospace on board as a new sponsor.
As a global player in the aviation industry, Montana Aerospace brings a wealth of experience to the table and shares our passion for making the aviation of tomorrow more sustainable.
We’re united not only by common goals such as reducing CO2 emissions and lightweight construction, but above all by our determination to bring real solutions to the skies.
— CELLSIUS