On 5 August 2020, DLR and MTU Aero Engines signed a Memorandum of Understanding to develop a fuel cell propulsion system. A Dornier 228 aircraft will serve as the flight demonstrator. Together with its industrial partner MTU, DLR intends to equip the demonstrator with a hydrogen-powered fuel cell and a single-blade electric propeller engine in the coming years and conduct flight tests. In this picture (from left to right): Barnaby Law, Chief Engineer Flying Fuel Cell at MTU, Lars Wagner, MTU Chief Operating Officer, Rolf Henke, DLR Member of the Executive Board for Aeronautics Research, Burkard Wigger, Head of Flight Experiments Facility at DLR.