Thanks guys, glad you like it.
have you considered doing more with an aluminum skin deformation bump map?
I played around with that when bump mapping was first introduced but found that the effect in the game didn't look right. In AH the bump map is supposed to have up to 256 levels of bump since that is the number of shades of grey you can use on the bmp. However to my eyes in the game it looks like there are less shades employed than that, maybe 16 or 32. So when I try to use subtle shading to get a curved bump or dip what I end up with in the game is a series of banded steps which looks unrealistic. I'll have another look at it when AH3 lets me see my skins offline, maybe the effect will be better.
So now for aircraft I use the bump map mainly to emphasise panel lines and holes in the airframe. However even there I keep the effect turned down as having highlights and shadows dancing around the panel lines as your plane manoeuvres around the sky looks wrong to me. I use bump mapping a lot more on GVs, the weird shifting of highlights and shadows isn't an issue as they change direction much more slowly. Also its really useful for things like zimmerit paste, tank tracks and mud effects.