 To resolve this challenge, Scientists at the DLR Institute for Technical Thermodynamics in Stuttgart integrated Horizon Fuel Cell Technology's fuel cell system into the Hyfish.In order to prepare the Hyfish for flight, the SmartFish team had to test the CFD of the aircraft numerous times.The most influential reasoning behind the creation of the Hyfish was to demonstrate and test the effectiveness of fuel cells in a challenging environment, which in this case, involved flight in the air.