In Stuttgart, the HY-4, a four-seater single-engine passenger aircraft powered by a hydrogen fuel cell, completed its first 15-minute test flight. Another of its features is two fuselages with passenger cabins located on either side of the engine.
The length of the aircraft is 21, 36 meters. The unusual layout of the HY-4, according to its developers, gives it "optimal distribution of drive components and a higher overall load capacity."
Each fuselage contains 9 kg hydrogen tanks that feed 4 low-temperature exchange membranes of the fuel modules. They all make up a single system that converts hydrogen and oxygen into water and electrical energy.
The developers emphasize the point that hydrogen for fuel cells was produced using renewable energy sources, which makes the HY-4 a completely emission-free transport.
The power of the electric motor (80 kW) is guaranteed to provide flight, and the lithium-polymer batteries will supplement its efforts during takeoff and climb. The HY-4 is designed for a maximum flight range of 1, 500 km, which, however, can be adjusted depending on speed, altitude and load. The maximum and cruising speeds are 200 and 145 km / h, respectively.
The machine was created jointly by specialists from the small aircraft company Pipistrel, the company Hydrogenics (fuel system), as well as the University of Ulm and the German aerospace center of the Institute for Aerodynamics Engineering.