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Modifying the sailing rudder http://www.hobie.com/forums/viewtopic.php?f=75&t=6403 |
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Author: | Yakaholic [ Mon Mar 26, 2007 6:02 am ] |
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Hey there I'm Yakaholic, some of you may know me from posts on the KFS forum. My first post here. I'm surprised there has been no discussion on the rudder mod, but I am here now to say just how well this mod works. With all my sailing I was actually getting carpal t. on my left hand from constantly batteling the rudder while under sail. This mod provides a dramatic improvement to rudder ease of use and rudder response when sailing. Big thanks to Roadrunner for all his instructions - which are very accurate BTW - and thanks to Josh & others who developed this quite needed mod. Yakaholic |
Author: | kemosuave [ Fri Mar 30, 2007 3:33 pm ] |
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Thanks Guys, I recently bought a AI and love it. The muscle in my thumb will love the mod. I did it in a little over a hour with a jig saw and a dremel tool. I read all you guys post and decided on the AI because of them. Thanks and may the wind fill your sails and the lord bless your lives. Kemo |
Author: | WaterLog [ Mon Apr 02, 2007 7:37 am ] |
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Thanks to all who came up with this fix! I went ahead and added the third bolts aft by using fender washers and a rubber spacer between the tapered part of the rudder and the base. I used a hand hack saw since the Dremel was having a tendency to melt the carboxylate. Keep on posting! John |
Author: | Yakaholic [ Fri Apr 06, 2007 8:56 pm ] |
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Read about the REDBULL project posted at KFS. http://kfs.infopop.cc/eve/forums/a/tpc/f/5086057385/m/2761090753 Thanks Roadrunner Yakaholic (It gives you wings) |
Author: | Roadrunner [ Fri Apr 06, 2007 10:09 pm ] |
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Yak and I have both been testing this winglet for over a week so far on the rudder mod posted above. We've both observed improved rudder authority and speed with the rudder mod alone. The winglet further improves rudder responsiveness while reducing twitchiness at the higher speeds, as well as providing better control in potential broach situations. At only 4 sq. in., the winglet is essentially unnoticeable in straight, balanced running. But to the extent slideslip and rudder course corrections are occurring, the winglet seems to improve the efficiency of the rudder by requiring less deflection, therefore less drag and more speed. For example, when riding boat wakes the oblique angle causes quite a side load on the rudder. The deflection necessary to keep from broaching often slows the boat enough to kick it out of the wake. The winglet improves this situation dramatically. Yak is getting excellent results with the winglet at faster sailing speeds, where the handling benefits become increasingly noticeable. So far we have found both mods work well with each other to make a significant improvement on the AI handling. |
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