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Smartflyer and H55: Pioneering Electric Aviation

Smartflyer, together with its partner H55, has marked a significant milestone in the realm of electric aviation. The successful delivery of the first batch of Adagio battery modules signifies not only progress in the development of the Smartflyer SFX1 aircraft but also a substantial movement towards the commercial application of battery technologies certified for electric propulsion.

This strategic delivery is pivotal for Smartflyer, as it transitions from component validation to complete system integration and testing of the SFX1. It showcases H55's determination to embed its certified battery systems into current aeronautical programs, bolstering its reputation as a provider of scalable and commercially deployable electric propulsion solutions.

The newly delivered Adagio battery modules will be incorporated into the SFX1 aircraft as part of its upcoming development phase, which involves comprehensive system validation across critical areas such as propulsion architecture and energy management, gearing up for the next ground test campaign. This critical step reflects the maturity of H55’s product portfolio. The Adagio battery technology has successfully passed all necessary certification tests set by regulatory authorities, thus demonstrating its safety, reliability, and compatibility for integration.

The SFX1 program is poised to enter an advanced development phase, with intensifying integration activities focusing on the coordination of installation, calibration, and testing preparations to ensure a seamless transition into subsequent key stages. Ground tests for the SFX1 are scheduled for this summer, and the initial flight is slated for the autumn, keeping the program in alignment with its development roadmap.

Rolf Stuber, CEO of Smartflyer, emphasized the significance of receiving the first Adagio battery modules from H55, viewing it as a major step for Smartflyer and a crucial catalyst for the next phase of their development program. He noted, “This delivery highlights the strength of our collaboration with a partner whose technology is not only innovative but also ready for real-world application. Together, we are taking tangible steps towards bringing efficient and sustainable aviation solutions to the market.”

Rob Solomon, CEO of H55, remarked on the importance of this delivery in integrating certifiable battery and propulsion solutions into aircraft development programs. He stated, “Our collaboration with Smartflyer demonstrates the transition of our technology—covering both electric and hybrid-electric configurations—from development to commercial application, enabling aircraft manufacturers to expedite their flight implementations.”

About H55
Founded in Switzerland, H55 is dedicated to certified electric propulsion systems and quality-certified energy storage solutions for aviation. By transforming commercial lithium cells into safe energy storage systems for aviation, H55 enables electric aviation to flourish. This transformation is achieved through rigorous independent cell characterization, thorough reception checks, redundancy safety architectures, and regulatory-compliant testing designed for the worst-case failure scenarios. Building on the technological legacy of the Solar Impulse program, H55 leverages over two decades of operational experience in electric aviation, having developed and flown several electric aircraft with an impressive record of over 2,000 flight hours without battery-related incidents. This operational experience equips H55 with the knowledge to implement certification programs, rather than merely conforming to them, ensuring a confident transition from certified design to repeatable mass production.

About Smartflyer
Smartflyer is a Swiss aerospace company that develops the SFX1, an innovative hybrid-electric aircraft designed for sustainable pilot training. By merging cutting-edge electric propulsion with an extended range architecture, Smartflyer aims to drastically reduce emissions and operational costs while maintaining high operational flexibility. The SFX1 program is currently in its concept validation phase, with a strong focus on certification-ready technologies and scalable solutions.

For more information, please contact:
H55
Axelle Krummenacher - [email protected] - +41 79 464 2260
Smartflyer
Dominik Heiri - [email protected] - +41 79 946 00 60
H55 S.A.
Route de l'Aéroport 10, 1950 Sion, Switzerland
www.h55.ch