How to use a SAC(section Area Coefficient) to calculate wsa?

Discussion in 'Boat Design' started by JorgenBeyer, Nov 25, 2009.

  1. JorgenBeyer
    Joined: Jan 2008
    Posts: 17
    Likes: 3, Points: 0, Legacy Rep: 9
    Location: Southampton

    JorgenBeyer JorgenBeyer


    I have now done lots of research but i am unable to figure out how to calculate my keels wetted surface area. for the keel i have the root chord, the tip chord, its span, its thickness/chord ratio and the sac. i assume you must use Simpson's rule but i can't figure out how. can anyone help me asap?

    root and tip chord = 1,2 m
    Span = 0,975 m
    T/C = 7,5%
    SAC = 0,66
  2. Greybarn
    Joined: Apr 2006
    Posts: 60
    Likes: 1, Points: 0, Legacy Rep: 20
    Location: Maine

    Greybarn Junior Member

    Planform area=span x (root chord + tip chord)/2
    Wetted surface area= 2 x planform area + (sectional area at tip)
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