delftship help for a noob - accurtly set deadrise angle?

Discussion in 'Software' started by Steve32, Feb 5, 2010.

  1. Steve32
    Joined: Feb 2010
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    Steve32 Junior Member

    Can you accurtly set deadrise angle?
     
  2. yipster
    Joined: Oct 2002
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    yipster designer

    good question, so far my best solution is to use rotate stern lines in degree's, its also possible to check deadrise with 3d acrobat tools, i started with a geo triangle tho and like to hear better way's
     
  3. Steve32
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    Steve32 Junior Member

    i thought of a protractor in the background but there has to be a better way
     
  4. yipster
    Joined: Oct 2002
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    yipster designer

    Steve thats not bad, not bad it al, thanks, and why didnt this noob think of that :D
     
  5. Steve32
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    Steve32 Junior Member

    got to be an easier way though here ya go!
     

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  6. lewisboats
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    lewisboats Obsessed Member

    I would think that an Excel guru could come up with a spread sheet calculator for it. All you really need is the Y and Z coords for the bottom and chine or chine area control curve point plus the centerline coord to give a 90 deg angle then calc the angle from bottom to chine-ish. Trouble is I forget the formulas to do it.
     
  7. Guest625101138

    Guest625101138 Previous Member

    You could rotate the whole hull about the longitudinal axis by the deadrise angle. Then set the height of control points to the same value. Might seem drastic but it is only a few dots on a screen.

    Rick W
     

  8. Martijn_vE
    Joined: Apr 2005
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    Martijn_vE Marine software developer

    Z= Zcenterline+Y*sin(15) or whatever the deadrise angle is.
     
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