|Quoting HAWK21M (Reply 7):|
Quoting OldAeroGuy (Reply 5):
With the door behind the wing, it is virtually impossible to make the airplane sit on its tail due to loading errors.
. As an example, let's consider a main deck cargo load of 27 96"x125" pallets.
With an aft door, 20 pallets are forward of the door, 2 are aligned with the door and 5 are aft of the door.
Also note that the aft door is not far behind the airplane gear while airplane OEW CG is in front of the main gear.
The natural progression of loading would have the forward pallets loaded first, the aft pallets loaded next and the door aligned pallets loaded last.
Having 20 pallets ahead of the door biases the loading CG to be forward.
Unless the loader loads the aft pallets first and/or the aft pallets are extremely heavy, the CG should always remain ahead of the gear during loading. Aft pallets heavy enough to shift the CG aft of the gear would also probably exceed the pallet and airplane floor load capability.
Note that I said virtually impossible. Willful neglect of a proper loading sequence is always possible.