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Controlled Wingsailing (1)

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Uploaded by on Dec 11, 2006

Experimental model wingsail which automatically adjusts to wind direction. For full details of how it works see http://www.sailwings.net

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Uploader Comments (ZKMX7)

  • Not sure why the vane isn't just stuck on a boom off the back of the sail like an airplane tail. Then you could use a trailing edge flap too, turned the opposite direction off the same servo.

  • You didn't understand it. There is no servo - it's automatic. Look carefully on the website for how it works.

  • Firs response disappeared. I knew there was no servo, just wondering why all the linkage instead of the way you do it on the full sized boat.

    Ever think about a trailing edge flap, and maybe even a leading edge one, to improve wing L/D and max Cl? If adjusted right, could move in proportion to angle of sail control surface.

  • The linkage is to make it automatic. Since its a model the operator is always going to be some distance away. Boat "knows" the wind direction better than the operator and can respond faster.

    Yes, trailing edge flap is a good idea. But the idea of this is to keep it simple. I have used flaps on other models, connected in opposition to the tailvane movement, works well, but more complicated.

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  • I know what the linkage is for. Just wondering why you didn't go to the same scheme as on the full sized boat for the models.

    BTW, although it is stalled, I am working on a model using some similar concepts.

  • nice

  • Neat idea. I have thought a while about a chip controlled radical sail supported only by an underwater 'flying ladder' made up of aqua-planeing fins. I my mind the vessel would have almost no displacement and depend for buoyancy on fine real-time adjustments in the angle of attack of the under-water elements. It would be too fiddly to control except by some degree of automation. Kind of 'sail by wire' technology.

  • thanks!use full for me!

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