The Liquid Hydrogen Propulsion department is responsible for defining, designing and testing the liquid hydrogen storage, distribution and conditioning systems. This means that the LH2 department makes sure that liquid hydrogen can safely be used as a fuel for the PowerCell fuel cell system. LH2 will therefore design, order, integrate and test the LH2 tank, the heat exchanger and required cooling pipes, pressure regulators, cryogenic insulation, safety valves and lines.

The Flight Test engineers at AeroDelft are primarily responsible for ensuring that the full-scale aircraft obtains a permit to fly from the Dutch civil aviation authority (IL&T). They manage the comprehensive documentation, verification, and validation of the design, coordinate risk and safety assessments, and liaise with the Dutch aviation authorities and AeroDelft’s technical partners to prove and present the safety of the aircraft. Additionally, FT engineers collaborate with each technical department within AeroDelft to synchronize the systems engineering process and define and document testing protocols across all departments. Furthermore, FT engineers develop and manage the Flight Test program of the aircraft, which includes coordinating with test pilots and formulating taxi test plans, flight test plans, and other essential documentation to ensure thorough evaluation of the aircraft's performance and safety.

The Fire Protection Department is responsible for all the safety systems in place meant to protect our aircraft and test pilots from any fires during all flight phases. This department is a very interdisciplinary one, as it is composed of fluid and thermodynamics, electronics and structural engineers. By bringing all these skill sets together, this department ensures that the risk of fires, including hydrogen jet flames, is contained. The work done by this team includes working on our composite firewall, analysing the performance of our ventilation and jettisoning systems with CFD simulations or developing the logic circuits of our hydrogen control system.