Flies is currently not considered very well because of its environmental impact. The Californian company Zeroavia wants to change that: It has developed a fuel cell propulsion system for aircraft. (Aviation, technology) 
Zeroavia: fuel cell aircraft with 800 km range
Flies is currently not considered very well because of its environmental impact. The Californian company Zeroavia wants to change that: It has developed a fuel cell propulsion system for aircraft. (Aviation, technology) 
