Completed Horizontal Stablizer. The most difficult rivets to drive were the AN470AD4-8s connecting the most inbord main ribs to the front spar. Rivets require a slant cut bucking bar and position during bucking does not allow one to see the bucking bar/rivet interface. Slightly crooked bucking bar causesthe rivets to cleat every time. After drilling out three rivets I reduced to rivit length to 7.5. The results were satisfactory.
