[HeliPilotWannaBe]

Chuck,

In the part file create a plane at each rib location. Then create a rib profile sketch on each plane. Once all the sketches are made make sure you are out of the sketch feature. Now select the loft icon. Now select each sketch in order. Also try to select the same area on each sketch for instance try to select the leading edge of each rib. I hope this helps.

Grady