I mentioned support arms in my last entry, and I’ve been researching how best to fabricate them. One important part of getting the wings settled in the jig is eliminating any twist before the skins go on. Surfing the Van’s Air Force website, I came across a really neat design by Rudi Greyling of Johannesberg, South Africa. His approach uses aluminum angle arms supported by threaded rods that can be adjusted to precisely level the arm.

One pic will convey the concept better than I can explain, so here’s one for your edification and enjoyment. Click on the picture for a larger version.

Wing jig support arms

Thanks Rudi, that’s a great idea!