Hinges and balsa

Added small pieces of lightweight wood (Balsa) to the flap and aileron hinges on the left wing.  These fill the volume between the aluminum plates that form the hinge points.  These weren't strictly required, but help with airflow around the hinges, and also help to strengthen them up a bit.  Once the pieces of balsa were in place, we sanded them even with the edges of the aluminum, and added a little bit of filler to fill in small gaps near the trailing edge.   Hours: 2.0

Balsa wood added in center of flap hinge