When a Panavia Tornado blasted into the clouds above the Berlin Air Show before swooping back down toward the Earth, the grounds below shook from the roar of the fighter bomber's twin engines.
When the next aircraft took to the sky, the air show went eerily quiet.
The fully electric E-Fan aircraft, engineered by Airbus Group, made one of its first public demonstrations here last week following it's first-ever flight in France on March 11.
The novel two-seater aircraft was designed from the outset for electrical propulsion, from its energy management system to safety features. In developing this technology, Airbus aims to one day reduce the aerospace industry's carbon dioxide emissions by an order of magnitude.
"It's a very different way of flying," said Jean Botti, chief technical and innovation officer at Airbus Group, "absolutely no noise, no emissions."
Very cool, and quiet! To read more, click here.