US at Charlotte is the third biggest hub in the US behind DL
. There is a lot of capacity going through CLT
. During holiday times, demand goes up further. With fleet utilization not having much flexibility, the only way to add capacity is between the hours of 10pm and 6am when most airplanes are on the ground. If they can fill an extra DEN
turn from the CLT
hub with an airplane that would have been on the ground, then that is more profit for them (as long as they have enough crew).
If you have never designed an airplane part before, let the real designers do the work!