I have noticed that on say the 762, the overwing exits differ dependent on the number of pax it carries, ie AA762, one overwing, and BY
have 2 overwing as they carry 290Y. The same goes for BY
763's they have 3 main pax entry doors and a 757 type emergency exit aft of the wing, which is permanently armed. The 3 main doors are all used for boarding/deplaning with BY
and this speeds up the turnaround process. Carriers such as UA
, who have only 2 main doors and 2 overwing exits instead, do not need this major time advantage as they carry fewer pax in a 2 or 3 class config and have a bigger time window for turnarounds on routes like JFK
than say BY
on a LGW
route. Just a thought.