Hans Ulrich Ammann

Hans Ulrich Ammann is one of the founders of SPL, the initiator and our driving force. He holds a Master of Science in Mechanical Engineering at the Swiss Federal Institute of Technology ETH, director of ARO TECHNOLOGIES, one of our most important sponsors.

Mail: hu.ammann (at)

Bruno Berger

Bruno Berger was also one of the founders of SPL. He holds a Master of Applied Science in Mechanical Engineering at the FHBB in Basle (Now FHNW) and an additional Degree in Software engineering at the SWS in Bern.

Mail: bruno.berger (at)
PGP-Key (Fingerprint: B7F8 A996 47BF 083C BC46 95FF 3D8F 2AA4 99B0 3335 )

Isabell Buttron

Isabell Buttron joined SPL in 2009. She holds a degree in Cell and Molecular Biology from the University of Freiburg and works for a bio-informatics company. She  currently helps Adrian with the PR stuff.

Mail: isabell.buttron (at)

Peter Frei

Peter Frei is one of the founders of SPL. He holds a Master of Applied Science in Electrical Engineering and Medical Devices. He studied at the Engineering School Bern and the Neutechnikum Buchs

Mail: peter.frei (at)

Oliver Hasler

Oliver Hasler joined SPL in 2015. He holds a Master degree Aerospace, Aeronautical and Astronautical/Space Engineering(RWTH Aachen University). The topic of the master thesis: “Design, construction and heat flux measurements on a wind tunnel model to analyse the SHEFEX-II hypersonic flight.”

Mail: oliver.hasler (at)

Adrian Mettauer

Adrian Mettauer joined SPL in 2006. He is public relations specialist. Today, he is communication chief for the New Public Management program which was developed and implemented for performance-oriented management and control of administrative units of the Swiss confederation.

Mail: adrian.mettauer (at)

Christoph Räss

Christoph Räss joined SPL in 2019. He finished the grammar school in June 2016 with the core subject’s physics and mathematics. In July 2016 he started his military service in the Armed Forces Command Support Organization. In summer 2017 he was graduated to the grade of Lieutenant. After his military service he started an apprenticeship as a design Engineer at one of Switzerland’s major aerospace companies.
Since childhood he liked the aviation and started to fly RC models. For his final exam during grammar school he developed a mechanical emergency system for model aircraft’s which he presented at “Swiss Youth in Science”, a national Swiss competition regarding natural science and technologies. In his spare time, he spends time flying (Also real planes) or doing sports.

Mail: christoph.raess (at)

Lukas Schwarz

Lukas Schwarz joined SPL in 2018. He finished his apprenticeship in 2015 with focus on CAD/CAM programming and CNC-milling. He is enthusiastic in all aspects of aerospace, specially rocket propulsion. He completed his military service in 2017 where he served as a helicopter technician. During his childhood, he spent a lot of time in the workshop of his father, so it was clear from the beginning that he will somehow end up in mechanical engineering. In his spare time, he likes to read technology and Silicon Valley related books and articles.

Mail: (at)

Devis Tonon

Devis Tonon joined SPL in 2012. He holds a PhD in Applied Physics (Technical University of Eindhoven) and a MSc in Aerospace engineering (Polytechnic University of Turin). He has experience in aeroacoustics, thermoacoustics and fluid dynamics.

Mail: devis.tonon (at)

Mark Vujicic

Mark Vujicic joined SPL in 2009. He holds a bachelor degree in aviation science, aeronautics diploma & nearly 1700 hours of flight time on fixed wing aircraft in commercial operations. Also, he spent a lot of time in mechanical workshops & has experience with machining. In 2016 he made his bachelor in mechanical engineering (designing and building a cooled nozzle for our 10 kN boiler plate engine) and 2017 the Msc in Aerospace Dynamics at Cranfield university. His LinkedIn profile

Mail: mark.vujicic (at)