Here is a shameless self plug, but i need some questions answered.
Photo © Nitin Sarin
If you notice the tail on the A319, you can clearly see that the part which comes directly in contact with the wind while flying is a smeared blue colour, same as the "chakra" of the old IC livery.
Now my question is, why does this happen? Is it mainly due to wearing of the paint because of the friction the tail faces during flight?
Is it because the bottom layer of the tail is painted blue? That doesnt make sense to me , because why would they base paint the tail blue and then paint the red/orange on top of it?
I have noticed this happen on lots of birds in India, does the heat have something to do with it?
Again, thanks for the answers in advance