Originally Posted by
svergin
The two aisles is designed to have an airplane with over 200 seats that doesn't take 45+ minutes to board and deboard. You'd need over 90 minutes to switch crews with a single-aisle 200+ seat plane. Certainly getting the plane to turn an hour is not going to happen unless they are 2 aisles with 230 seats.
Does Spirit take 90mins to turn a 321? Honestly not sure but I think they're around 220 seats. I know SWA does a clean as you go method to speed up turns. I really wonder whether a few minutes of turn time makes up for boring a much larger hole in the sky w/ a twin aisle at 200-230-ish pax and a much bigger fuel burn normally. Any way you cut it - even w/ a non round cross section, about 2x the internal volume will be apportioned to aisle vs a narrow body. We'll see if Boeing reinvents aerodynamics with the 797 or sticks w/ single aisle haha.