[EricH]

I'll echo Roger on that...

A couple of weeks ago, my Aero Design team needed some sketches in a hurry. Solidworks would work for one design, but we needed more. I volunteered. Pencil and paper and half an hour later, we had three sketches--a rejected fuselage design, an outside view of our fuselage, and a view that showed key areas inside the fuselage as well as the outside configuration. Using CAD would have taken a lot longer, and I'm not exactly sure we'd have had the same results.