I accidently glued these two pieces upside down. If I decide to cut threw the ribs and then invert the two pieces. Will it still retain the strength. This is my first plane.. I don't know what I was thinking. I didn't notice the mistake until I was getting ready to glue the top spars on.

You will need to cut this out and place it against the bottom spar. Since it appears this is used basically as shear webs it shouldn't be a problem with strength.

EXCAP232

Looks like an LT-25 wing. If repairing doesn't work out, Sig sells a wing kit by itself ao you can get a fresh start if needed.

Larry

Thank you guys.. It is a sig lt-25. That's pretty amazing knowing the plane from a pic of half the wing..

You got a couple of pretty amazing guys there!

I'm with EXCAP232 on this one. Just cut them out carefully, and glue them in the right way. Shouldn't be a problem.

Here is the fixed wing. It looks pretty good at this point and I'm pleased on how it turned out. I used medium ca to glue the repair. Thanks again for the help. Hopefully I've learned to check, recheck, and check again the plans before glueing.

The diagonal ribs are a bit-of-a-give-away!

Up to now, I still reckon the LT25 was the easiest kit I have ever built, as the laser cutting is so accurate you scarcely need to use glue!!

-DC

It looks fine. If you have a little gap (larger than the CA will span) add a little baking soda and then apply thin CA. It will span the gap and be as strong as a rock (and just as easy to sand).

EXCAP232

The fix looks great!

I have a question about the baking soda. Do you moisten it first? Seems to me you wouldn't be able to work with it that well in powder form.

You should be able to take a razor saw (Zona brand is superior to Xacto brand) and saw down each side of the misplaced spar and then just lift it out, clean out the slots and reinsert in the proper direction. As to the baking soda, use it dry, just barely dust the surfaces to be glued with the baking soda, put things in position and then apply the CA. This works especially well with hardwoods like spruce or pine. CA does not like an acid media such as is the characteristics of most hardwoods and the baking soda neutralizes the acidity. Baking soda works so well with CA that you can literly fill a small hole with it, drill a pilot hole and then tap threads into it. It also works well to reinforce holes threaded into wood. Just put on the CA, retap and you have a nice set of new threads.

Just try not to touch the tip of your CA bottle to the baking soda. It does a nice job of plugging it up too.
Dennis-

It is used dry. I apply the baking soda with an artist's pallet knife which is very flexible. In most cases the part must be held so the powder doesn't move. Small pieces of wood can be used to fill larger gaps and then the baking soda used to fill the smaller ones left. As noted in another post don't let the tip of the bottle touch the powder. I use extenders to reach better and then can replace them if they do touch. Acetone will take it all apart if you need to. Tips that clog can be cleaned in a small jar with a lid also. This is best done in a well ventilated space as it can produce some nasty fumes.

EXCAP232