Powerboat design

Discussion in 'Boat Design' started by VeelaidVahur, Mar 20, 2014.

  1. VeelaidVahur
    Joined: Feb 2013
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    Location: Estonia

    VeelaidVahur Junior Member

    Hi!
    Can anybody give any comment to design. This is my shcool final thesis but I hope to build this boat as well in near future.
    Cb=0,41
    Cp=0,71
    Cm=0,57
    Cw=0,8
    Aw=5,32
    Ax=0,3
    Deadrise 18
    Engine 40kW
     

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  2. Mr Efficiency
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    Mr Efficiency Senior Member

    What material is it intended to be built with ?
     
  3. VeelaidVahur
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    VeelaidVahur Junior Member

    Hi! Thanks!
    Aluminum
     
  4. Mr Efficiency
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    Mr Efficiency Senior Member

    Hello, the bottom sections are maybe not drawn for a developable surface ?
     
  5. VeelaidVahur
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    VeelaidVahur Junior Member

    Do you mean there will be difficulties with shaping this bottom panel?
    I have a little expirience dealing with shaping aluminum but I think I can manage this.
    I have done one similar powerboat and one 34,5 foot sailing boat hull (last one with nondevelopable curvature using english wheel). Can send some pictures if interested.
     
  6. Mr Efficiency
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    Mr Efficiency Senior Member

    If you cut the frames to those lines, the bottom plating forward will not fit flush against them, following it's "natural" curvature ?
     
  7. VeelaidVahur
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    VeelaidVahur Junior Member

    ???? Now it is a little bit complicated. What you exactly mean?
     

  8. Mr Efficiency
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    Mr Efficiency Senior Member

    The only way the sections can be all straight, and the plate bend around and touch them at all points, without forcing, would be if they were parallel to one another.
     
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