Sail sizes + power
Must have been mentioned before but how can sail measurements (in area) be so different accross different manufacturers. (or even same in same cases)
Eg I have 2 five metre sails. An NP Combat (luff 420;boom 165) and a Gun MC wave (luff 422;boom 175) I do accept all arguments re cut ;shape etc but these two have virtually same plan shape and similar draught. In performance the MC is a lot more powerfull and guess what combat better in strong winds ! (By my calculation these two sails are about 5% different in area !)
I can actually use Combat to change down to !
Why is this done ????!