Rudder frame pre-assembly

Match drill rudder horn upper 4 holes.
Radius rudder horn for good fit in 904 rib
Cleco rudder horn, 904 rib, 917 shim and 902 spar and match drill.

Enlarge 4 rudder horn lower flange holes
Cleco and match drill 606, 607, 608 reinforcement plates to 902 spar.

Finish fluting 903 and 912 ribs.
Cleco 903, 912 ribs to 902 and match drill
Cleco 913 skin to ribs and spar