First a quick bio ... I’ve built two kits in the past, both a “few” years ago (close to twenty).

I’ve recently gotten back into building and now I’m putting together a Midwest Citabria. After building the vertical and horizontal stabilizers as well as the rudder and elevator, without problem or incident, I started on the wing. Everything’s been going great with no problems or issues and I’m really enjoying building again. Until yesterday, that is.

About ten inches of the wing is sheeted with 1/16 balsa in the center section of each wing half after joining, the kit supplies 10” pieces of 1/16 balsa sheeting for this purpose, so about 20 inches of the full wing center section is sheeted both top and bottom, (ten inches on the left and ten on the right - I would have preferred 20" pieces, but that's another story.). The top of the wing had been sheeted last week ... actually the right side is sheeted prior to joining the wing, then the left top is sheeted after joining the two halves. All was fine with the wing up to this point. Oh... and I also sheeted the bottom leading edge (about three inches - from the leading edge to the main spar). The top had been done earlier. I would supply pictures, it would probably be easier then trying to describe his, unfortunately my digital camera just decided to stop working ... As a side note, the plans call for about 2 deg of dihedral. Instead, I built the wing flat.

So... my problem is that after sheeting the bottom of the wing ... in an unrestrained condition ... the wing now has about 1 deg 'negative' dihedral. I used medium CA and simply held each piece in place for a minute while it set. There was a total of four pieces and two small strips total.

My big question is; Why did it move? It was fine, setting flat on my workbench, I walked away, grabbed some lunch and now it’s raised up about half an inch!

My second question is; Now what? I figure that I have a couple of different ways to fix it, I hope ...?...

John