Leech: The trailing edge, all around 12 toes, however this isn’t strictly calculated in a few class regulations. Sheet: The mainsheet runs from the clew in the sail towards the sailor’s hand or possibly a cleat on the middle thwart. And not using a boom, the sailor adjusts the sail’s https://www.callupcontact.com/b/businessprofile/Offshore_Sailing_School/9566866