The next step is to setup the keelson. I first milled a 2x6-16' to the necessary thickness and width. I used the 16' in case there were splits in the ends of the board. Using the jig for the ribs I used a bevel to set my table saw to the needed angle. After verifying the setup with a test piece I ripped the taper onto the plank.
After test fitting the plank was attached to the transom with glue and screws.
After test fitting the plank was attached to the transom with glue and screws.