AC75 monohull

Discussion in 'Boat Design' started by Gunnar Sommerlund, Nov 20, 2017.

  1. Gunnar Sommerlund
    Joined: Jun 2017
    Posts: 29
    Likes: 4, Points: 3
    Location: Denmark

    Gunnar Sommerlund Marine Engineer

    Wanted to share this with you


    No keel only foils.. this is gonna be interesting
  2. wet feet
    Joined: Nov 2004
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    Location: East Anglia,England

    wet feet Senior Member

    Looks like a lot of boat ahead of the lifting foils.A good composite engineer is going to be essential for these things and the systems for moving the foils will be powered by?I think I would rather be a spectator than a test pilot at this stage.
  3. Clarkey
    Joined: Aug 2010
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    Location: UK

    Clarkey Senior Member

    Like a huge Defline 19 with lifting foils.
  4. idkfa
    Joined: Sep 2005
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    Location: Windward islands, Caribbean

    idkfa Senior Member

    at 45sec, "windward foil provides righting moment" just how does it do this, by its weight? it is not touching the water! poppycock
  5. farjoe
    Joined: Oct 2003
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    Location: med

    farjoe Senior Member

    Prestart match racing will be an incredibly dangerous game with those "tentacles" coming out of the boats sideways.

    It will make the jousting carried out by the knights in centuries gone by look like a walk in the park.
  6. David Cooper
    Joined: Jan 2015
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    Location: Scotland

    David Cooper Senior Member

    Yes - by its weight. Two tons is a lot of ballast hiking out over the side.
  7. JosephT
    Joined: Jun 2009
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    Location: Roaring Forties

    JosephT Senior Member

    I admire the twin canting keel/foil concept. Granted it's going to be tricky rounding the cans with those foils hanging out so wide, but there is a clear speed benefit provided the wind speed is right and the boats are well balanced.

    I'll be grabbing the popcorn during sea trials!

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

    Doug Lord Flight Ready

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