I moved the wing jig frame into place and got to hanging the wing tonight. I cut the steel angle into 4 pieces and bolted it up on each end of the frame. I just had to guess how high it needs to be. In the end, I think I may have made it a little high, but decided I'd rather have it a little too high rather than too low and have to rivet stuff while on my knees or something. The jury is still out on whether or not the single vertical 2x4 is rigid enough. It's actually married to another 2x4 part way up - just a function of me using the scrapped pieces that were already the correct size and shape. If it ends up having more flex than I want, I'll just double it up. "Jig" is kind of a misnomer in the pre-punched hole era anyway, so it doesn't have to be perfect to have everything come out right. It just needs to hold things steady.
The garage floor has a pretty good slope to it, so I pulled a string line from each vertical to at least get it somewhat level from end to end. The inboard spar has enough length to rest on the jig, but the outboard spar is flush with the outboard rib. There's nothing to set on the jig. To remedy that, the plans say to drill two holes in the outboard rib and bolt on a piece of aluminum angle. I did that and set everything up on the jig and clamped it in place. I didn't get to it tonight, but the last thing I need to do is put a block or something in the middle of the span to take the sag out. Everything feels pretty solid, so I don't think I'll have to bolt or glue the jig down to the floor, but I'll just have to see how things go as I start working on the skins. If I have to manhandle pieces and things slide around, I'll have to beef it all up a bit and fasten it to the floor.
