The winglets foam parts were removed from the billets, glued together with micro and set aside to cure. The next day, the foam cores were sanded and excess micro ground away. Trenches were cut for the VHF COM antennae (one on each winglet), the antennae were glued to the surface, and the cables were run to the winglet root. The surface was filled and faired with micro and cabo, and then UNI glass was wet out on the surface, with the orientation along the long dimension of the winglet.