> If there was a significant cost saving (there isn't) then of course it would make sense There could have been, but Airbus shied-away from a really radical de

> If there was a significant cost saving (there isn't) then of course it would make sense There could have been, but Airbus shied-away from a really radical design like a blended-wing-body and stuck to traditional tube-and-wings design, just on a larger scale. There's not much margin for efficiency improvement in that case other than begging the engine manufacturers to work more magic.