The cockpit of an HY4 fuel cell zero-emission aircraft is pictured at the airport in Stuttgart, southern Germany, during the plane’s presentation on September 29, 2016.
The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR) presented the four-passenger aircraft powered solely by a hydrogen fuel cell battery system. / AFP PHOTO / dpa / Christoph Schmidt / Germany OUT
The HY4 fuel cell zero-emission aircraft stands on its parking position at the airport in Stuttgart, southern Germany, during its presentation on September 29, 2016.
The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR) presented the four-passenger aircraft powered solely by a hydrogen fuel cell battery system. / AFP PHOTO / dpa / Christoph Schmidt / Germany OUT
The HY4 fuel cell zero-emission aircraft rolls over the runway at the airport in Stuttgart, southern Germany, during its presentation on September 29, 2016.
The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR) presented the four-passenger aircraft powered solely by a hydrogen fuel cell battery system. / AFP PHOTO / dpa / Christoph Schmidt / Germany OUT
The HY4 fuel cell zero-emission aircraft flies over the airport in Stuttgart, southern Germany, during the plane’s presentation on September 29, 2016.
The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR) presented the four-passenger aircraft powered solely by a hydrogen fuel cell battery system. / AFP PHOTO / dpa / Christoph Schmidt / Germany OUT
The HY4 fuel cell zero-emission aircraft rolls over the runway at the airport in Stuttgart, southern Germany, during its presentation on September 29, 2016. The German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt, DLR) presented the four-passenger aircraft powered solely by a hydrogen fuel cell battery system.
Christoph Schmidt / dpa / AFP