15 - Rear Spar (completed right side); 16 - Top Wing Skins (doublers, final- and match-drilled)

A decent amount was accomplished this week, including finishing the right rear spar, starting the right top inboard wing skin ... and, taking an EAA Sportair weekend (Sat/Sun) workshop on Fiberglass for RVs, taught by Scott Vanderveen.  This was an excellent class, which gave me the confidence and toolset to tackle the fiberglass parts, including the windscreen transition.

A few details from this week:

- riveted all 14 ribs to spar; installed final 4 sets of bolts and final-torqued and torque-striped
- prepared outboard aileron bracket (oh no!) and primed all 3 pieces
- drilled, countersunk and riveted outboard aileron bracket; prepared inboard aileron bracket; drilled and deburred 3 rear spar doubler plates; drilled aileron pushrod hole in doubler plate; enlarged hole in inboard doubler plate and straightened plate; prepped and straightened rear spar reinforcement fork; clecoed everything to ribs
- final-drilled all #30 holes common to doublers, rear spar and ribs; deburred all parts (edges/holes); primed inboard aileron (service bulletin) and all 5 doublers;machine countersunk #40 holes in spar flanges and #30 holes in W-1007-C inboard doubler; dimpled flanges of rear spar; riveted inboard aileron and doublers to rear spar
- reamed 3/8" inboard hole in rear spar doublers; riveted rear spar onto ribs; done.
- clecoed wing walk doublers and top skin to wing assembly; match drilled holes for nutplates; final drilled all holes common to skin, doublers and ribs; final drilled nutplate holes to #19; dimpled aft nutplate for #8 screw

Flap hinge brackets primed and attached to the 3rd and 8th rib (starting inboard):

Section 15 - Rear Spar (Completed, left side)

Finished the rear spar for the left wing; I'm spending more time in the shop than updating the blog, so this post will be brief.

Primed doublers and fork:

Section 15 - Rear Spar (aileron hinge bracket assemblies; spar doublers)

Started the Rear Spar (left side only) by spending an inordinate amount of time prepping the aileron brackets, and trying to figure out which parts of the service bulletin (SB) pertain to folks like me, who are starting the build process (and don't already have a flying airplane that needs the fix).

Parts for both the inboard (shown on the left; i.e., the SB) and outboard (right) were cut/trimmed as necessary, match-drilled, deburred, and primed: