Riveted right leading edge ribs to the spar. Katrin helped, and we got all the riveting done in about 1.3 hrs.
Started fitting the tank to the spar. The outboard bottom rear of the tank skin overlaps the leading edge just a fraction. Other than that it seems to fit pretty good.
Just realized I still need to set all the leading edge skin to spar rivets. That's the next task.
