I have a plan to make myself some set of sails based on two layers of mylar foil and an aramide net between them... I even "invented" the way, how to do that
Of course, it will be an experiment only (at least first try) and it will be one piece sail, without the seams. So - I have a question. Some time ago, somewhere, in a far, far galaxy
I saw the Excel calculator for the sail profile... but I cannot find it anymore. Maybe some of you, guys, remebers, where it was? I remember, that it should be some of NACA profile, but I need to recalculate curves to the size I need to build camber board.