They’d probably get some good results if they spent $100 billion on coming up with more fuel-efficient ways of flying and still have enough left over for 200 years of flights
They’d probably get some good results if they spent $100 billion on coming up with more fuel-efficient ways of flying and still have enough left over for 200 years of flights
The next generation of small airliners with thin wings and open-rotor turbofans are expected to be significantly more fuel efficient. Hybrid battery-electric propulsion also holds some promise for shorter flights.