free hull sizing information?

Discussion in 'Boat Design' started by magwas, Dec 14, 2009.

  1. magwas
    Joined: Oct 2009
    Posts: 280
    Likes: 7, Points: 18, Legacy Rep: 47
    Location: Hungary

    magwas Senior Member

    I am looking for free information on sizing the hull of a boat.
    I know that there are standards like ISO 12215 about it, but I find it ridiculous to
    - pay for information necessary to comply to regulations (actually I find it unconstitutional)
    - pay more for information than the material bill for the boat itself.

    So what are the other sources of information?

    Alternatively I am willing to put up the standard text to torrent if I would somehow magically obtain it.
     
  2. Kay9
    Joined: Oct 2006
    Posts: 589
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    Location: Central Coast Oregon US.

    Kay9 1600T Master

    Um, Im not an engineer.

    But I would think the size of the hull would be based on the mission of the vessel. Not some ISO standard.

    What is your vessels function?

    K9
     
  3. sorenfdk
    Joined: Feb 2002
    Posts: 511
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    Location: Denmark

    sorenfdk Yacht Designer

    1: What do you mean by "sizing"?

    2: Where do you buy your materials?
     
  4. magwas
    Joined: Oct 2009
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    Location: Hungary

    magwas Senior Member

    Sizing is the process of choosing the size of various parts based on mechanical forces foreseen.

    I buy materials in the next wood shop. You do not need much material for two stitch-and-glue kayaks, but you end up with a katamaran if you add some extra parts. Now that would need some sizing considerations, I feel.
     
  5. sorenfdk
    Joined: Feb 2002
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    Location: Denmark

    sorenfdk Yacht Designer

    If you're building this boat for yourself, you don't need to comply to any regulations (unless you have some national regulations which I'm unaware of).
     
  6. Wayne Grabow
    Joined: Aug 2003
    Posts: 251
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    Location: Colorado

    Wayne Grabow Senior Member

    "sizing the hull of a boat"

    What you are referring to, I believe, in the US is called scantlings. Many people consider Dave Gerr's book to be an excellent source of information on this subject.
     

  7. magwas
    Joined: Oct 2009
    Posts: 280
    Likes: 7, Points: 18, Legacy Rep: 47
    Location: Hungary

    magwas Senior Member

    free scantling information

    I have found the following freely available scantling informations so far:
    ABS rules (see pub 37 for yachts)


    Germanischer Loyd rules.
    If you cannot reach directly the chapters from the table of contents, prepend
    http://www.gl-group.com/infoServices/rules/pdfs/english/
    to the links.
    If you cannot follow the link from the chapter's table of content, use abschnNN.pdf
    for sections, and anhangX.pdf for annexes, where NN is the number of chapter, and X is the letter of the annex in small.
    For example chapter 1 of I-3-3:
    http://www.gl-group.com/infoServices/rules/pdfs/english/schiffst/teil-3/kap-3/englisch/abschn01.pdf
     
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