http://www.f18-international.orgInternational class rules including sail plans are available on the International F18 web site. If you are not planning to race the boat, your options are much broader - there are many Nacra F18 sailors with used sails that would part with them.
Good luck - <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />
