airfoil shapes and dimensions

Discussion in 'Boat Design' started by strangeideas, Apr 20, 2015.

  1. strangeideas
    Joined: Feb 2015
    Posts: 2
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    Location: Rock Falls, IL

    strangeideas New Member

    I would like to know the optimal air foil shapes and dimensions for the following hypothetical sailing vessels.

    1. One man iceboat with total weight of 300 lbs. or less.

    2. 14-18 sailing catamaran with total weight of 600 lbs. or less

    3. 14-18 sailing monohull with total weight of 600 lbs. or less

    Any ideas or information related to this inquiry would be appreciated.
    Thank you.
     
  2. TANSL
    Joined: Sep 2011
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    Location: Spain

    TANSL Senior Member

    Really you have strange ideas. I am not a designer of sailboats but do you believe that with only those data, one can design the most suitable sail for a sailboat?
     
  3. messabout
    Joined: Jan 2006
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    Location: Lakeland Fl USA

    messabout Senior Member

    Strangeideas, Those questions are equivalent to asking; how long is a piece of string?

    There are so many variations in boats that an optimum sail design can not possibly suit them all. For example a small Crosby catboat would use a vastly different sail than something like a 49er or a 505. Same goes for cats.

    If you want to see what is state of the art, then hang around some racing venues and see what the competitors are using. Seeing is believing and you can be fairly certain that serious racer dudes will have the best sails that can be had. They'll mortgage the farm in order to get those sails if they find it necessary.
     

  4. frogger1225
    Joined: Aug 2014
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    Location: Pennsylvania

    frogger1225 Junior Member

    http://www.boatdesign.net/forums/boat-design/flapping-inverting-foil-patent-pending-51359.html

    The answer is well put by messabout. In my simple view, a sail generates vortices which in turn creates resistance which in turn creates power transfer. The formation of the vortices is crucial becomes if not formed correctly it can create negative results. I put this question similar to finding one parachute that will work for a human, an ultralight, a cessna, and finally the apollo command modules on either calm or windy days.
     
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