Uptip Foils

Discussion in 'Multihulls' started by Doug Lord, Oct 24, 2016.

  1. UpOnStands
    Joined: Nov 2015
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    UpOnStands Senior Member

    Nothing personal Doug.
    Foiling is growing and it would be better if you guys had your own forum, that's all.
     
  2. Doug Lord
    Joined: May 2009
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    Doug Lord Flight Ready

    Foiling

    The problem with that is that foiling applies to every segment of sailing from windsurfers, to dinghies, to small multihulls, to the Americas Cup, to offshore ocean racing ,to monohull keelboats, to 100' trimarans and more.
    You would have to double the size of the sailing portions of the forum to cover all of it's aspects.
    Now, everyone is free to choose what topics they are interested in and to ignore the ones they aren't interested in.
     
  3. UpOnStands
    Joined: Nov 2015
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    UpOnStands Senior Member

    exactly right. All those basic hull variants are spread out over the traditional forums. Better to gather all of them into one place. I imagine that foilers are more interested in the foils than they are about specific hull variants. One stop shopping instead of being spread out all over.
     
  4. Doug Lord
    Joined: May 2009
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    Location: Cocoa Beach, Florida

    Doug Lord Flight Ready

    =================
    Thats simply not true. Any "slowness" as a result of the slightly(10 degrees) angled rig* could be remedied on a turbo version of the boat by simply using a canting rig while maintaining the advantages of the angle of heel relative to the use of UptiP foils.
    The angle of heel greatly simplifies the handling of the boat.

    * google "trimaran" and you'll see that the majority of tri's sail at an angle of heel......
     
  5. Doug Lord
    Joined: May 2009
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    Location: Cocoa Beach, Florida

    Doug Lord Flight Ready

    Interesting that ALL(I think) of the new Ultim( 100' ) trimarans are using UptiP ama foils-mainly because these foils automatically maintain altitude with no or very little speed related variation. And most AC cats use a version of the UptiP foil:

    Sketches by"darth reapius" :

    [​IMG]
     
    Manfred.pech likes this.

  6. Doug Lord
    Joined: May 2009
    Posts: 13,757
    Likes: 114, Points: 73, Legacy Rep: 1362
    Location: Cocoa Beach, Florida

    Doug Lord Flight Ready

    One of the things thats been done in the AC 50 class is to allow 15 degrees of cant and that can allow the foil to work like a highspeed ,low drag foil or a super stable UptiP foil:

    Mode Two Foil.png
     
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