CaptainCaution 1 #1 Posted January 9, 2020 I am looking for sail charts / crossover charts (sail choice vs wind velocity and angle) as a guide to building my sail inventory. I would also like to create an update my own sail charts for current and future inventories. My boat: Beneteau First 40.7, shoal draft. Location: Chesapeake Bay. Primary use: club racing. Looking for sources for existing sail charts for 40.7's or similar and any recommended tools for creating a new chart. Attached is a pic I found of a sail chart for an unknown boat created with Expedition software as well as a chart from a friend's boat. Share this post Link to post Share on other sites
Captain Jack Sparrow 76 #2 Posted January 9, 2020 At the risk of stating the obvious..did you ask a sailmaker? North, Doyle and others have certainly built sails for the 40.7. Quite likely somebody in that industry has a crossover chart for that boat. Share this post Link to post Share on other sites
SailChiTown 3 #3 Posted January 9, 2020 You might want to let people know what config your 40.7 is. Most of them in the NE have done mast head kites and/or penalty pole. Also, knowing your inventory would be essential. Share this post Link to post Share on other sites
v-max 8 #4 Posted January 10, 2020 Ask any of the China Cup competitors. One of them will have it I'm sure. Share this post Link to post Share on other sites
European Bloke 425 #5 Posted January 10, 2020 Crossover charts for the shoal draft version? Do such things exist? Does it tell you how many rolls to put in the headsail furler? 1 Share this post Link to post Share on other sites
CaptainCaution 1 #6 Posted January 11, 2020 On 1/9/2020 at 2:21 PM, Captain Jack Sparrow said: At the risk of stating the obvious..did you ask a sailmaker? North, Doyle and others have certainly built sails for the 40.7. Quite likely somebody in that industry has a crossover chart for that boat. I asked my North Sails rep. He's looking for one. So far, only polars. 1 Share this post Link to post Share on other sites
CaptainCaution 1 #7 Posted January 11, 2020 On 1/9/2020 at 2:33 PM, SailChiTown said: You might want to let people know what config your 40.7 is. Most of them in the NE have done mast head kites and/or penalty pole. Also, knowing your inventory would be essential. Current inventory is small: 2 head sails - a #1 (135%) and a #2 (155%), and a symmetrical spinnaker (S2). A chart for any config 40.7 would be a helpful start. Share this post Link to post Share on other sites
CaptainCaution 1 #8 Posted January 11, 2020 8 hours ago, European Bloke said: Crossover charts for the shoal draft version? Do such things exist? Does it tell you how many rolls to put in the headsail furler? Hahaha, cute! I already made a keel crossover chart; its a function of resources and desperation, not wind speed and angle. Meanwhile I'm just trying to have the most fun with the boat I have. A sail crossover chart for any 40.7 would be a good starting point. For instance I haven't seen polars for a shoal draft version either, but the "regular" polars are a help. Share this post Link to post Share on other sites
Ishmael 5,855 #9 Posted January 11, 2020 33 minutes ago, CaptainCaution said: Current inventory is small: 2 head sails - a #1 (135%) and a #2 (155%), and a symmetrical spinnaker (S2). A chart for any config 40.7 would be a helpful start. I would suggest adding a #3 (180%) for the light air. 2 Share this post Link to post Share on other sites
CLaserGirl 0 #10 Posted February 10, 2020 Did anyone get you a chart? I can send you one if you PM me your email. I have one that would include the sails you have + other sails, and it's in an editable excel format that you can upload to expedition. It would be for fractional kites, and the full keel, but could certainly get you going in the right direction. Share this post Link to post Share on other sites
