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.
Innovative projects are something of a tradition at Stuttgart Airport: Echterdingen is home to several fuel cell airplane models, Baden-Wurttemberg’s first public hydrogen filling station set up in 2009 and hybrid technology field tests since 1991. The most recent project involves field-testing six electrically powered buses for regular day-to-day use.