Daggerboard

Discussion in 'Boat Design' started by bevan, Mar 4, 2004.

  1. bevan
    Joined: Jan 2004
    Posts: 16
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Wales

    bevan Junior Member

    does anyone know how to calaculate the area needed for daggerboards on a catamaran?
    Thankyou!!!!! :)
     
    bevan, Mar 4, 2004
    #1
  2. tspeer
    Joined: Feb 2002
    Posts: 2,319
    Likes: 305, Points: 83, Legacy Rep: 1673
    Location: Port Gamble, Washington, USA

    tspeer Senior Member

    1.5% - 2% of the upwind sail area is a reasonable rule of thumb.
     
    tspeer, Mar 6, 2004
    #2
  3. Doug Lord

    Doug Lord Guest

    dagger areas

    Tom, would that be total area of both boards or the area of the board in each hull?
     
    Doug Lord, Mar 6, 2004
    #3
  4. tspeer
    Joined: Feb 2002
    Posts: 2,319
    Likes: 305, Points: 83, Legacy Rep: 1673
    Location: Port Gamble, Washington, USA

    tspeer Senior Member

    Yes ;-)

    I think one would want to look at a number of successful designs of similar boats and use their boards as a starting point. I find Kurt Hughes' catalog to be especially valuable for this, because he has such a wide range of types, all the way from beach boats to world cruisers.
     
    tspeer, Mar 6, 2004
    #4
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