Sodebo Ultim 3 Foiling Trimaran

Discussion in 'Multihulls' started by Doug Lord, Jan 1, 2019.

  1. Doug Lord
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    Doug Lord Flight Ready

  2. Doug Lord
    Joined: May 2009
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    Location: Cocoa, Florida

    Doug Lord Flight Ready

  3. Doug Lord
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    Thomas Coville -Sodebo Skipper

     
  4. Doug Lord
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    Doug Lord Flight Ready

    Sodebo sailing: Looks to me like the guys on the boat like the view from aft?!
    pictures by Frederic Morin--

    Sodebo.1.-2    3-29-19.png

    Sodebo.3-1  3-29-19.png

    Sodebo 3--3     3-29-19.png
     
  5. Doug Lord
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    Doug Lord Flight Ready

  6. Doug Lord
    Joined: May 2009
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    Location: Cocoa, Florida

    Doug Lord Flight Ready

  7. Doug Lord
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    Last edited: May 15, 2019
  8. Doug Lord
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    Youtube version of the 40 knot facebook video above:
     
  9. Doug Lord
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    Doug Lord Flight Ready

    Another youtube of Sodebo:
     
  10. Doug Lord
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    Sodebo visited by Alien:
     
  11. Dolfiman
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    Dolfiman Senior Member

  12. Doug Lord
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    Doug Lord Flight Ready

    Thanks! That thing is incredibly cool!
     
  13. Doug Lord
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    Doug Lord Flight Ready

    I've wondered why the rudder foils are so far forward and I just noticed a picture above that shows the windward foil touching the water even with the boat heeled. Combine that with what Vincent Prevost said in the "Dynamic Lift.." thread* and it might be
    * Dynamic lift(downforce): Cat vs Tri- https://www.boatdesign.net/threads/dynamic-lift-downforce-cat-vs-tri.62224/
    possible that they are considering using Sodebos rudders for differential lift-maybe instead of using a daggerboard lifting foil. However, the daggerboard foil contributes a lot to pitch control so I don't know.Here are the two best shots of the new rudder which is not retractable:

    Sodebo heeled and windward rudder touching the water:
    Sodebo 3--3     3-29-19.png

    This picture is a result of my brain fade-it s the old boat! But using rudder differential on the new boat for RM is a distinct possibility!
    Sodebo Yvan Zedda--rudder foil is breaching.jpg
     
    Last edited: May 27, 2019
  14. bjn
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    bjn Senior Member

    That's different!

    My guess would be for structural reasons. Closer to the crossbeam.
     

  15. Doug Lord
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    Doug Lord Flight Ready

    Structural reasons is definitely part of it since the downforce load will be gigantic on the windward rudder foil.......
     
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