HOW DO I ADD "ROUNDNESS" TO MY F22 HARD EDGES??
 

I want to know how exactly i can add "roundness" to the edges (which look sharp as the wing edges and the flaps). Am attaching a pic so that it would be more clear of what i want to ask...






In 3d studio max, we have something called "Chamfer Box" which has round edges. Am also aware of the bevel tool in maya, and i have tried using it to smooth it, but its tough as the other geometry also gets disturbed.

So please tell me a simple way to smooth the edges and i will try to correct most of the gemoetrical faults.

Polygons -> Normals -> soften/harden.