Final riveted E-702 spar, reinforcement plates, plate nuts as well as
E-709 root rib.
Note: Regarding the root rib, the plans are a little confusing:
What they mean is machine countersink E-702 only and do nothing with E-709
root rib. This pic shows the flush heads before mounting the control horn.
Counter balance rib and end rib final rivet as well.
E-704, 703, and 702 final riveted 4ea. AN470AD4-4 button heads
in the corner.
Elevator horn final riveted.
Look close at the dabs of clear RTV on the ends of each stiffener area.
This prevents cracks from vibration.
Assembled E-713 counterbalance rib to skin, Notice the 2ea. rivets upper
and lower, installing these rivets now will allow the use of solids throughout.
Right elevator clecoed and ready to be riveted.