That's all. I plan on measuring my mainsail soon to get an accurate measurement. The US main may be only slightly bigger. The US main has a flap on the bottom that can be taken off. Wouter, are they're any used I20 mainsails for sale in our club. I have a Kooji (sp?) jib and would be interested in getting a used main for fun.
<br>My average wind speed for all races sail this past season was 8.7 kts.<br><br>