Originally Posted by
Aero1900
If you compare a 767 to a 787, what percentage of the fuel efficiency gains is a result of the engine's compared to the aerodynamics and advanced wing design?
And to add to that, wouldn't a 767MAX just a worse version of a 787? How could that be a success?
With all the financial damage Boeing has done to their customers, 787-8’s should be dished out as massive discount to make them that much more competitive vs bringing back an ancient design like the 767. A 767-400 isn’t much smaller than a 787-8 so you’re question is indeed valid.