GC 32 super cat

Discussion in 'Multihulls' started by Doug Lord, Oct 15, 2012.

  1. Blackburn
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    Blackburn Senior Member

    ^^^

    Foiling Week?

    It's to be held at the Circolo Vela... That is a charming place.

    You have to go there Doug!

    I can recommend a good B&B, and good restaurants!

    You can launch the model later!


    ;)
     
  2. mrmac
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    mrmac Junior Member

    We are going to Garda for foiling week. And after the mast few days on the boat it's clear that Garda will be amazing.
     
  3. Doug Lord
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    Doug Lord Flight Ready

    ===================
    Right........
     
  4. mrmac
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    mrmac Junior Member

  5. Doug Lord
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    Doug Lord Flight Ready

  6. Blackburn
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    Blackburn Senior Member

  7. mrmac
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    mrmac Junior Member

    We are just boring people :)

    The boat sells itself!
     
  8. Blackburn
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    Blackburn Senior Member

    lol

    That is funny, very good!
    Work it into the presentation?
     
  9. Doug Lord
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    Doug Lord Flight Ready

  10. mrmac
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    mrmac Junior Member

    The bow is up here because its easier to learn how to foil upwind in this trim.

    Today we had Paul CJ here and we played a lot with trim and now have it very flat going upwind and fast. but it takes time to get there.

    soon there will be a lot of nice photos and video to see....
     
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  11. mrmac
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    mrmac Junior Member

  12. Doug Lord
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    Doug Lord Flight Ready

    Andrew, my congratulations-the boat is simply extraordinary-rock stable foiling, easy adjustments-what a great boat!! And, according to Mac, one of the design requirements of these foils is to not have to adjust the rake very often. If that really works(no adjustment or very little) then these foils are a breakthru in uptip foil design. I wonder how it would compare to the frequency of adjustment on Groupama's C or to the Flying Phantom?
    This is The Daily Sail youtube video-it is just excellent:
    http://www.youtube.com/watch?v=odA2zeVlxyw
     
    Last edited: Apr 18, 2014
  13. Doug Lord
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    Doug Lord Flight Ready

    GC32 super cat

    Excerpt from Scuttlebutt article tonight:
    --full article here: http://www.sailingscuttlebutt.com/2...m_source=Email Newsletter&utm_term=Click here

    L-foils of this type represent the most cutting edge technology in sail boat design at present, but the priority was to provide a ride targeted at sailors of average proficiency or above and easy to sail.

    Key to achieving this was fitting foils that provide a stable ride without constant porpoising. G32 designer Martin Fischer explains how this is achieved: “Ride height, or ‘heave’, stability is an essential feature of every foiling boat. This can either be obtained with an active control system – like the wand mechanism on a Moth – or with a foil design that is inherently stable. With the GC32 we went for that second option.”

    This heave stability depends primarily on the angle between the vertical strut and horizontal tip of the L-foil daggerboard: Essentially the smaller the angle between them, the more stable the ride, but this does come at the cost, says Fischer: “It is important to find the right trade-off between heave stability, safety and controllability on one side, against drag and theoretical speed on the other. A foil with a wider strut-tip angle may be theoretically quicker, but that does not help if the foil is so difficult to handle that its full potential cannot be exploited.”

    Thus the new GC32 foil has a moderate angle between its vertical strut and tip, and the heave stability is further improved by varying the wing section along the span of the foil.
    Early testing has found the GC32 fully foiling upwind in as little as 6 knots, and hitting speed in the low 30s in 15 knots of wind.
     
  14. Doug Lord
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    Doug Lord Flight Ready


  15. Doug Lord
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    Doug Lord Flight Ready

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