Thursday, July 14, 2011

Vans Aircraft RV-12 Build, Section 17: Wing Skins (part 6)

Reference: page 40-03, 40-04; 1.5 hours

I'm still working on the wing kit for the RV-12, however today's entry deals exclusively with installing the Lighting kit from Van's Aircraft.

Step 7: Machine countersink the screw holes in the W-00014 Lens for the corresponding dimples in the W-1203-R Outbd Wing Skin.

Step 8: Dimple the nutplates and the W-1223E Lens Backing Strip at all nutplate attach locations. Rivet nutplates to both lens backing strips.

Step 9: Temporarily position the Lens Backing Strips on the Lens. Use the edge of the lens cacking strips to mark the lens for trimming.

Step 10: Trim back the corners of the Lens to match the edges of the Lens Backing Strip.

Step 11: Radius the edges of the Lens. Smooth all trim marks with 220 grit sandpaper. Deburr the interior sides of the screw holes.

This completes page 40-03

Reference: page 40-04

Step 1: Use a step drill to final-drill the two tooling holes in the W-1223B Landing Light Ribs to 3/8 inch.

Step 2: Remove the shaded area on the Landing Light Rib to seperate the part into the right and left ribs Builders note: I did this previously.

Step 3: Deburr the slots and edges of both the W-1223b-l & -R Landing Light Ribs. Flute the rib flanges between the hole if necessary. check that an AN3 bolt will easily slide in the slot.

Step 4: Machine countersink both W-1223C Rib Doublers for AN426AD3-4 rivets.

Step 5: Debur the slot in both W-1223C Rib Doublers. Check that an AN3 bolt will easily slide in the slot.

Step 6: Rivet the Rib Doubler to the Left Landing Light Rib and Repeat this step for the remaining rib doubler and Right landing Light Rib.

Builder's note: The doubler goes on the side of the rib opposite of the rib's flanges.