Having ruined two HS-7 ribs last night, tonight’s task was to rebuild them and drill them properly. The trick, which several good friends from EAA chapter 32 pointed out to me, is to draw a line down the middle of the flange on the rib. Then I can assure that the line is visible through the holes in the anti-servo tab skin before drilling the holes in the rib. By drilling into the line, I am assured that my holes will be in the middle of the flange.
Son of a gun, it worked!
