Build and Configure New Mainsail

(Measure in m e.g 0.52)
Watch our guided video on how to measure your boat for a main sail.
(Measure in m e.g 0.52)
Generally all leech measurements are with the boom at 90 degrees. However, if you have a dodger or bimini then measure to the outhaul car pin with the boom in its normal position while sailing.