Quote:
Originally Posted by ZachMiller
Structurally, a wing skin lap is not a doubled up area (at least not in the primary load direction, inbd/outbd), it's an area where all of the load in one skin is being transferred to the other skin. Therefore the stresses can be quite high and not evenly distributed.
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This was *exactly* my thinking--what is a joint, anyway, but a place to transfer stresses? I was also concerned about the pitting damage near the inspection plate cutout, where stresses are concentrated and routed around the edge.
Thanks for all the helpful responses, everyone!