While practicing cross wind landings I managed to let my Avistar drift into a tree when I lost perspective. The wing was sliced through with no other damage. A one inch wide area for the wing was shredded. How do you repair the broken spar? Any tips on making sure the wing is straight? This was an ARF and I don't have plans. I did see the recent posting on repairing the area forward of the spar. Thanks for any help.

Can you include a picture, that would help a lot. You will have to recover part of it, so get over that fear first. Then, peel back the monocote, cut it with a sharp xacto, and see what your problem is. I would recomend using splints on each side of the spar.
If you could include some pictures, that would really help a lot.

Glue a duplicate spar under the original (At least 6" long) Then add some 1/8" ply to at least the front of both spars (If you can get at the back of the spar, sandwich the spars between two pieces of ply).

Thanks MinnFlyer! This is exactly what I needed to know.

That should work pretty well. Have to remember that trick.

What a great pic MinnFlyer . I wish I knew that trick when I was reparing my wing.

The only reason that I'm so good at these repairs is that I have done them all (Several times!) LOL