Thistle Tuning Guide For any question you may have on tuning your Thistle for speed, contact our experts: Ched Proctor 203-783-4239
[email protected] Brian Hayes 203-783-4238
[email protected] onedesign.com Follow North Sails on... NORTH SAILS Thistle Tuning Guide Introduction to your diamonds. Always be sure to check 1/8” Cable Forestay Tension your diamond tension and straightness of LOOS LOOS PRO the mast while it is supported at both ends This tuning guide is for the Greg Fisher TENSION MODEL A GAUGE with the sail track upwards. design and the Ched Proctor design Thistle 240 28 21 sails. These designs are the result of hours 260 30 22 If while sailing in marginal hiking of boat on boat sail testing and racing 280 31 23 conditions (10 - 12 mph breeze) you experience. 300 32 24 notice slight diagonal overbend wrinkles in 320 33 25 the upper part of your mainsail, your upper The following tuning guide is meant to 340 34 26 diamonds are most likely too loose which be a comprehensive guide for setting and 360 35 27 is allowing the upper part of your mast trimming your North Sails. Please read it to bend too much. On the other hand, if thoroughly before using your sails for the your mainsail in the upper third appears first time. 1/16” Wire Diamond Tension fairly round and is difficult to flatten out in We urge you to read the section on sail With North Proctor model sails a breeze, your upper diamonds are most care in order to prolong the life of your likely too tight.