Marking the location for the port side centerboard case install

Although this is not the most elegant photograph of the interior of the port side hull, it shows a number of sharpy pen marks that I have made to convince myself that I know what I am doing. ( measure five times, mark three times and cut once )

You can also see the multi layer unidirectional upright web along the left side of the door opening. This, along with several more reinforcing webs will provide ample bonding points to distribute the forces that will be generated by the centerboards.