A

Q. I have a yacht with a centerboard, and none of the keel profile sketches displayed in the rating application show a centerboard. What keel type should I declare?

Q. I have a yacht with a centerboard, and none of the keel profile sketches displayed in the rating application show a centerboard. What keel type should I declare?

A. Check the box corresponding to the underbody profile that most closely resembles the fixed portion of your keel and your rudder type. CRF accounts for the effect of the centerboard via the declared value for ‘Draft Centerboard Down’.