Here is the rear HS spar complete including the hinge brackets,
and bearing bolts properly torque. Keeping the rivet heads aft in
this installationallows for easy repair if a rivet needs to be removed
in the future.
Check out the fwd side hinge bearing bolt and nut installation.
By the way those are the AN960 washers not to be confused with the thin 960L.
Completed the fwd spar, notice the four center flush rivets and
the open holes just outboard are for assembly with the fuselage.
Here is another view of the forward spar, 6 degree bends.
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