Saturday, March 16, 2019

Section 17 - Outboard Leading Edge (deburred, dimpled, primed, painted, started riveting)

All steps for the left outboard leading edge have been completed, right up to the point of riveting the skin to the ribs.

Constructed cradles, which can be used for the leading edges and the fuel tanks:



Lined contact edges with duct tape:


Spent lots of time straightening, fluting, final drilling, and deburring edges and holes of 7 ribs:


Fabricated 59 3/8" j-stiffener (from 6' stock) - drilled pilot hole ... then discovered that the figure in the instructions was for the right wing, and not the left (although it is marked for the left - an unreported, minor error in the plans).  This seems to be a remnant of a related issue from few years back, in which Van's modified the instructions a bit.  Not to worry; I saved this channel for the right wing and constructed another one side, with the pilot hole on the opposite end:


Removed, deburred and dimpled the left splice strip:


Temporary placement of ribs and j-stiffener in skin:


another view:


Match-drilled holes into j-stiffener:


Deburred edges and holes and dimpled skin:


another view:


deburred and dimpled j-stiffener:


Primed all 7 ribs (they were not alclad-coated):


Primed access hatch, access hatch doubler, lens backing plates, and light mounting bracket:


Primed area of skin that is part of the light bay, prior to final coat of black paint:


Painted light-well part of skin with Cardinal BK11-4A00 matte-black spray paint - I'm not a big fan of the nozzle, which squirts paint in a circle; next time I might try using an old SEM primer nozzle, which sprays in a fan pattern:


Primed and painted two ribs (part of light bay), light mounting bracket and backing plates:


Riveted nutplates on all parts shown:


Riveted access hatch doubler onto skin:


A view of the clecoed leading edge assembly, ready for riveting:


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