Inverted, sorry I got the tail feather construction mixed up with another plane someone asked me about. Yes, it is balsa slab with holes, but the two I have built sure were light already.

You can also use one long piece of grass trimmer string for the tail bracing. Thread it thru the hard points in the vert and horz stabs and then drill two holes in the fuse close to the bottom. Run it thru the holes in bottom and then CA where it comes out the other side. Great strength is not needed, just something to keep the flex out.

While not a full blown 3D machine, it sure is a lot of fun to fly. Keeping it light just makes it fly that much better.

Ed M.