Wing root ribs

Pretty easy stuff here. Remember that template? Use it to make the root ribs, and cut it out slightly larger. Mark center lines, and when you bore the main wing tube hole, be sure the socket fits nice and snug.

GLue it on with polyurethane glue and masking tape. Put a little extra glue around the tube socket so it's glued well.

Make sure it's straight in relation to the wing chord.

Let this dry overnight, then sand the ribs flush with the sheeting.

Using a band saw or whatever works, cut the socket down close and block sand it flush with the root rib.

The root rib should be perfectly flat, with no waves in it.