Began riveting one side of the rudder skin in place using pneumatic squeezer set to ~90psi. A little trial and error got the rivets to the correct set size and finished all the 462-3-3.5 sized rivets, most are along the spar flange.

Also a VERY PROUD PAPA moment this evening as my son wanted to help for the first time so I let him place the clecos into the holes and he really enjoyed helping dad!