I deviated from the plans on the installation of the W-408-I leading edge rib and the W-423 Joint plate.
Here's what I did:
1. Slid the W-408-I in place and clecoed the flange to the main spar. 2. Used a sharpie and placed the holes from the skin onto the rib 3. Fluted the W-408-I 4. Found the centre of the flange on the W-408-I and drew a line down the centre 5. Slid the W-408-I back in place, started at the bottom aft, lined up the hole with the line 6. Drilled and clecoed along the way, lining up every line through the hole. and drilling to #40 7. Removed the W-408-I..no MED issues at all! 8. drew the 1/2 inch line on the outboard edge of the W-423 9. Placed it until I lined up my line with the holes,and clamped with 1 inch cleco clamps 10. Drilled and clecoed all the holes for the W-423. 11. Installed both the W-408-I and the W-423,lined up the holes and clecoed. Perfect results!
Diagram 3 shows the 11/16th exposed W-423 as per the instructions. This was consistent all around the leading edge. I believe these steps were a lot easier than Van's instructions and also ensured that there were no issues with the MED on the rib.
I then reamed all of the holes to #40.
I pulled out the stall warning kit and started reviewing the instructions. I'm installing it, even though I'm putting a Dynon with an AOA system in it.
Onto the right wing leading edge. Time to flute and debur those leading edge ribs. Oh yeah, I drew intersecting line for my tie-down hole on theskins...all looks good.
