sail data
Here's a site to help you get started. Measurements for asymetrical spinnakers do not have to be precise, just within a certain range. http://www.thesailstore.com/selectboat.phpjust click on your boat for the recommended sail and its dimensions.... okay, I'll do it for you.http://www.thesailstore.com/asymmetrical-cruising-spinnaker-size-p-55.htm