Finding the Center of Effort

The Center of Effort (CE) of a sail is the point through which the sum of the driving forces appear to act.

To determine the CE of a triangular sail:


To find the center of efort of a quadrilateral sail, draw a diagonal dividing the sail into two triangles. Determine the CE of each of the resultant triangles. Connect these two CEs. The CE of the full sail is at the intersection of that line and the original diagonal bisecting the sail.


Prepared by Marilyn Vogel and Dan Miller.

Back to Balancing the Rig.

Last modified 5/27/97 by DJM