This is supposed to be a rudder of a wing… (later)
So I wanted to smooth together the outer faces with the rest. (giving it all a single “smoothinggroup”)
Unfortunately I cant get it to work properly…
I tried:
#1 Ctrl + N - to make normals consistent #2 Remove doubles - to merge together double verts #3 selected all the faces/edges/verts and hit “smooth” under the “Shading/UVs” toolpalette…
Still I cant get the faces (as seen in the picture) to smooth out properly.
In the Object Data tab, the Auto Smooth is turned on. If I understand your question correctly, turning this off should fix your problem, as seen in these 2 images.