Although the aviation industry was the starting point for hydrogen developments, commercial applications in that industry have been few and far between. 1783 marked the launch of the first hydrogen-filled hot-air balloon; later, hydrogen-powered airships crossed the Atlantic. But since the Hindenburg disaster in Lakehurst in 1937, the most lightweight element of all has fallen out of favor in every field except for the space industry.
Professor Josef Kallo has been working for years on realizing his dream: the use of zero-emission fuel cell aircraft in passenger transport. On Sept. 29, 2016, he came a huge step closer to his vision, when the first flight of a four-seat, propeller-driven and hydrogen-run airplane was completed successfully. During the World of Energy Solutions, Kallo talked about the flight, the technology used and presented “his” HY4 to all interested attendees.
A unique aircraft with a distinctive design and innovative engine technology – that is how one could sum up the features of the Hy4, which the German Aerospace Center (DLR) had already showcased at the World of Energy Solutions on Oct. 12, 2015. The new concept study was presented by project head Professor Josef Kallo, who had already been responsible for developing its predecessor.
When the World of Energy Solutions took place in Stuttgart from Oct. 12 to 14, 2015, the emission scandal surrounding Volkswagen was still a fresh memory. The #dieselgate was the topic of many conversations and even an issue in a lot of the presentations held at the trade show. During his opening speech, Franz Untersteller, Baden-Wurttemberg‘s Minister of the Environment, Climate Protection and the Energy Sector, was confident