Wing Tip Install

 5/3/2023

I have been putting on the wing tips. I have the VOR antenna and the FlyLED lights in the tips so I am going to put them on with 6-32 screws per the drawing in the plans.

*I lined up the tips with the ailerons, drill thru the pre punched holes in the wing into the tips with a 3/32 drill.

*After making sure everything was good, I enlarged the 3/32" holes to #26 (I think) This make the holes a little tight for the 6-32 screws, but still able to thread into the fiberglass.

*I removed the tips, installed the two ribs per plans,

Then I put a screw and 6-32 nut plate together to make a drill guide for the Nut plate rivets. Being a smaller hole, this screw and nut plate combo was screwed in to fiberglass tip holes and the nut plate mounting holes were drilled for rivets

* The rivet holes were then countersunk

* Then the 6-32 screws were threaded thru the undersized fiberglass holes and the nut plates were riveted to the fiberglass tip.

*Once all the nut plates were installed to the tip, I took a 9/ 64 bit and opened up the undersized holes in the wing skins and the fiberglass to easily accept the 6-32 screws

* for all these steps , I used hardware store common allen 6-32 screws.

This is where I am at today

* After a trial fit on the wings to make sure the holes are all in the right spot, I will go back and counter sink the 6-32 holes and dimple the wing skins.

In general, when installing nut plates, once they are riveted in, I will go back and open up the screw holes with a larger bit so that the nut plate sets the position of the screw, and not the hole in the material. (This only works for non-floating nut plates)