How many layers of fiber?

Discussion in 'Fiberglass and Composite Boat Building' started by atillayc, Sep 25, 2021.

  1. atillayc
    Joined: Sep 2021
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    Location: Turkey/─░stanbul

    atillayc New Member

    First of all, hello everyone, I am Atilla.

    I started researching to build a boat, I even bought some necessary parts. But I still can't find any clear information about body construction. I'm going to cover fiber fiber directly on the 8 millimeter plywood surface, but what is the ratio? How many layers of fiber should I put on 8-10 millimeter plywood for 15-16 meter boat building?

    Thanks in advance for the answers :D
     
  2. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    8-10mm plywood seems extraordinarily light for a 15 metre boat hull.
     
  3. TANSL
    Joined: Sep 2011
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    Location: Spain

    TANSL Senior Member

    Welcome to the forum.
    What is your boat like and in what conditions should it sail? What is the structure you have planned for that boat like? I am referring to the elements of the structure and how they are attached to each other. A 15-16 m boat is a very serious thing and should be treated as such. Get someone to design it and calculate its scantlings.
     
  4. atillayc
    Joined: Sep 2021
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    Location: Turkey/─░stanbul

    atillayc New Member

    I'm thinking of motor yacht construction, but the people i talked to and contacted here (in Turkey) say that 10-12 layers of fiber is enough on 8 millimeter plywood for 15-16 m boat , im confused
     
  5. Mr Efficiency
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    Mr Efficiency Senior Member

    We are all confused now, what is this boat, it sounds like very unorthodox in its construction ?
     
  6. TANSL
    Joined: Sep 2011
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    TANSL Senior Member

    With the information we have, no one could say if that is enough or not. 10-12 layers seems outrageous but I can't be sure of anything. In any case, it would not be the same number of layers throughout the hull. Why don't you provide us with more data so that we can make valid comments, even make some calculations?
     
  7. bajansailor
    Joined: Oct 2007
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    Location: Barbados

    bajansailor Marine Surveyor

    Attila, as Tansl says above, you need to provide a lot more info.
    Do you have a set of plans for the boat?
    What type of boat is she?
    Can you post any photos or drawings of the design?
    Be aware that building a 15 metre boat is a BIG project - and even in Turkey it will cost a LOT (relatively) of money.
     
  8. Kayakmarathon
    Joined: Sep 2014
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    Location: NewEngland

    Kayakmarathon Senior Member

    And what is the weight of the cloth?
     

  9. TANSL
    Joined: Sep 2011
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    Location: Spain

    TANSL Senior Member

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