Originally Posted by
Efrem
On the first point, probably; every generation of aircraft is more efficient than whatever came before thanks to advances in engines, materials, and so on. As for the second: they can't control what airlines do with the interior. Once their cost-cutters and people-squashers get through with it, I suspect it will look pretty much like any other regional jet on the inside.
The size and shape of cabin is not decided by airline.
The Cseries cabin is 14 cm wider than that of MD-80. The people-squashers can cut the seat pitch and add rows, but there is not enough space to add a sixth seat abreast.
The airline may decide whether to have wider aisles, wider seatbacks, wider armrests - but the width must go somewhere.