Left Wing Fabric, bottom surface

We installed fabric rivets on the bottom of the left wing.  These rivets are really just a backup to ensure that the fabric can never pull away from the wing.  The rivet lines were covered with protective tape.  Some finishing fabric tapes will eventually cover all these lines of rivets.

Next, we trimmed and glued the fabric at both ends of the wings.  Then we performed the final fabric shrink on the bottom surface, shrinking the fabric at 300 and 350 degrees with irons.

Next, we decided to go ahead and install access port rings and doilies on the bottom surface.  We measured and cut out the doilies from some pre-shrunk lightweight fabric, and also determined where we needed to install the plastic access rings.  We applied glue, installed the access rings, and glued down all the doilies.   Hours: 5.5

Left wing with rivets, access port rings, and doilies installed

Closeup of doilies for an access port ring and the pitot tube