Trim disc for sailors, sail trimming aid, practical application in various wind conditions

A trim dial is a valuable aid for regatta and touring sailors. It provides guidelines for a boat's maximum propulsion and is a valuable addition to one's own experience. This trim dial contains trim settings for the mainsail and headsail on top- and 7/8-rigged rigs. Extremely practical to use. All that's required is to adjust the prevailing wind and wave conditions.