what is it? Is it a hidrofail or.....?

Discussion in 'Boat Design' started by tamkvaitis, Dec 8, 2005.

  1. tamkvaitis
    Joined: Aug 2005
    Posts: 134
    Likes: 1, Points: 0, Legacy Rep: 34
    Location: lithuania

    tamkvaitis sailor/amateur designer

    I found it in one site about multihulls. tris basicly. What do you think about it?
     

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    tamkvaitis, Dec 8, 2005
    #1
  2. tspeer
    Joined: Feb 2002
    Posts: 2,317
    Likes: 290, Points: 83, Legacy Rep: 1673
    Location: Port Gamble, Washington, USA

    tspeer Senior Member

    You're looking at the stern of an ama from a Catri trimaran. The Catri has inclined dagger boards in the amas to provide vertical lift as well as side force.

    The Catri is unusual in that it uses hydrofoils to reduce the displacement and wetted area, but doesn't try to fly the boat completely out of the water. So her stability comes from a combination of hydrofoil balance and buoyancy.
     
    tspeer, Dec 8, 2005
    #2
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