I am curious to know how the topic starter managed to see the TOP of Iberia A340's wing sitting in the cockpit of his plane parked at an adjacent gate?
Being that the distance is at least 50m and the wing's positive dihedral it would be quite a feat to accomplish a wing inspection from that vantage point.
I have a hard time seeing the 'representative surface' from the cabin window closest to it, never mind outside.
