I have the airfoil in .dwg format, and insert it into a sketch. I didn't generate the airfoil, a friend of mine did. I may re-do it and change the outline to a polyline and see if that will work. For some reason, SW doesn't like the curves in the airfoil. I can do a loft with shape of straight lines & angles OK. I came across a "how to" at the "other" website, but it was quite involved.

There has to be an easier way. That may be why God created ModelCad.