Hull building material and techniques.

Discussion in 'Boatbuilding' started by DJPierrot, May 23, 2004.

  1. DJPierrot
    Joined: May 2004
    Posts: 8
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    Location: Brussels, Belgium

    DJPierrot Junior Member

    Hello,
    As I have already said in my previous message, (http://boatdesign.net/forums/showthread.php?t=3717) I am designing an expermiment to find a hull design with minimal TDF. In order to do this, I must have many hulls to investigate, each with different characteristics (same length and same weight, but different width, beam, rocker, longitudinal shape, depth, and cross-sectional shape) The problem is that I do not know how to make these hulls. I was wondering if anyone would have an idea about what materials to make these hulls with, or could give me suggestions about this experiment.
    Thank you in advance,

    Pierre Badin
     
  2. Not A Guest
    Joined: Jan 2004
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    Location: Great Lakes

    Not A Guest Junior Member

    Taylor and Gertler have a rather long equation that relates drag (power) to speed and the hull geometry.

    If you are very clever, you may be able to use that equation to make some usable statments about the minimal TDF.

    (I made some useable statements about hull shape based on power output at one time. They seemed to be reasonable.)
     
  3. DJPierrot
    Joined: May 2004
    Posts: 8
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    Location: Brussels, Belgium

    DJPierrot Junior Member

    Yes, I know, but that's all the dilemna in the first forum. Now my problem is to actually MAKE these hulls that I am going to test for minimal TDF. So again, do you have an idea about the technique or the material to build these hulls?
    Thank you

    Pierre Badin
     

  4. GHJ

    GHJ Guest

    Why would you test different hulls for drag when people have been doing
    it for last few thousands years, man?
    Just pick what you want from thousands of designs created over
    thousands of years.
    You want viking ship, pick one, you want spanish galion, pick one.
    You want Formula-1 boat, there is plenty of this junk too.
    No need for any testing, man.
     
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