Resistance Calculation of planing hulls

Discussion in 'Boat Design' started by Sumit, Feb 20, 2019.

  1. Mr Efficiency
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    Mr Efficiency Senior Member

    Normal means at right angles to.
     
  2. Sumit
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    Sumit Junior Member

    Thankyou Sir.
    But we measure VCG also as a vertical distance from the keel.
     
  3. JSL
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    JSL Senior Member

    If I interpret this correctly, it could be.
    As per 2 months ago- go out and buy some books so you are better equipped.
     
  4. DCockey
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    DCockey Senior Member

    You need to determine the distance perpendicular to the keel. Assuming the keel is straight it is very simple trigonometry only requiring the VCG and the angle of the keel to horizontal. If the keel is not straight then you need to use drawings or CAD. But if the keel is not straight the hull may not be suitable for planning.
     
  5. JSL
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    JSL Senior Member

    Sumit, a drawing of the boat would probably help
     

  6. Sumit
    Joined: Feb 2019
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    Sumit Junior Member

    Thank you all for the valuable feedback.
    Please may I know is there any range for L/B ratio of a planing hull? I have gone through many papers but could not derive on a conclusion. Can someone please quote the reference too?
     
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