Better positioning of the keel

Discussion in 'Sailboats' started by Jeandupont, Jun 26, 2006.

  1. Jeandupont
    Joined: Apr 2006
    Posts: 35
    Likes: 0, Points: 6, Legacy Rep: 10
    Location: United States - Ft.Lauderdale

    Jeandupont Designer/Boatbuilder

    Hi,

    It would like to know which optimum point for the position of the keel in a sail-boat?


    This keel has 60 kg of weight and the Sail-boat has 5 meters of lenght.


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    Jeandupont, Jun 26, 2006
    #1
  2. Stephen Ditmore
    Joined: Jun 2001
    Posts: 1,520
    Likes: 68, Points: 58, Legacy Rep: 699
    Location: South Deerfield, MA, USA

    Stephen Ditmore Senior Member

    Two different issues to consider. One is the balance of the sailboat's helm, and the impact of the center of lateral resistance on that balance.

    The other is the fore & aft position of the boat's center of gravity. On most modern designs the boat's overall center of gravity should be 8/15 (53.33%) aft of the forward end of the waterline. Usually that means the ballast wants to be just forward of midships, but you'll need to determine whether the fore & aft trim on your boat looks right with that weight placement or not.
     
    Stephen Ditmore, Jun 26, 2006
    #2
  3. Jeandupont
    Joined: Apr 2006
    Posts: 35
    Likes: 0, Points: 6, Legacy Rep: 10
    Location: United States - Ft.Lauderdale

    Jeandupont Designer/Boatbuilder

    thank you, I got to remove the doubt that I had
     
    Jeandupont, Jun 27, 2006
    #3
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