Prismatic Coefficient

Discussion in 'Boat Design' started by hwsiii, Aug 9, 2009.

  1. apex1

    apex1 Guest

    And that is where your philosophy shines? When weather suddenly changes, you are safer with a faster, lighter boat? Are you sure?

    Joke of the week.................and then:

    Well, that was a good one!





    say for a first grader................
     
  2. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    The lack of design experience and practical understanding is clearly evident here, Richard. Grandiose generalities on such a scale, that renders us all fools and uninformed, suggests we're all out of step but him . . .
     
  3. daiquiri
    Joined: May 2004
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    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

    If I understood your words right, you are talking about a 40'x16'x3" box? And where do you go with that "boat"?
    Could you please say few more words about the seaworthiness of that hull?
     
  4. apex1

    apex1 Guest

    ;) We are Paul..........................;) Must go back to the asylum now, my nurse is waiting with the milk soup.
     
  5. Willallison
    Joined: Oct 2001
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    Willallison Senior Member

    Yikes!!
    All that study... how could I have got it so wrong.....?;)
     
  6. Ad Hoc
    Joined: Oct 2008
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    Ad Hoc Naval Architect

    hwsiii

    From the diagram, the longitudinal Cp = Volume / (Am x Lpp)

    Volume = volume of hull at draft T
    Am = midship section area (at given draft T, in figure)
    Lpp = length between perpendiculars
     

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  7. apex1

    apex1 Guest

    You did study??? To hammer a boat together you must study??? What did they tell you?
    But now must really go back, they otherwise eat my milk soup and I will have no lullabye.
     
  8. apex1

    apex1 Guest

    Good idea sugar!

    And do´nt forget to leave the black, round thingy where it is, while you are sailing your fast built, advanced composite liveaboard racer!!!

    That is the most important item in your dream..................








    it is the bath tub plug!
     
  9. Willallison
    Joined: Oct 2001
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    Willallison Senior Member

    Q1. Yes
    Q2. Apparently Not, so we've just learned
    Q3. Nothing of any use, again as we've just learned....

    That last bit... well ... I just don't get that....
     
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  10. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    Damn, I know all the time spent, pages dog eared, just to admit I still have much to learn.

    It seems he's been "erased", which is probably his fate if caught 100 miles out in a 40' Cigarette, when conditions suddenly turn to a full gale and 20' seas.
     
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  11. marshmat
    Joined: Apr 2005
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    marshmat Senior Member

    Yup, ccdiver is gone without a trace.

    Paul, not sure if you checked ccdiver's profile, but the boat in question was nowhere near as strong or seaworthy as a 40' Cigarette. It wasn't much more than a box barge, five plywood sheet lengths long, two plywood sheet widths wide, by half a sheet width tall.

    I had some fun on the walk in to work this morning going over what would happen if one tried to make a 20,000 TEU container liner plane.... reducto ad absurdium.
     
  12. terhohalme
    Joined: Jun 2003
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    terhohalme BEng Boat Technology

    Damn, missed the fun. :(
     
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  13. apex1

    apex1 Guest

    As mentioned in post #19 Will,

    I have to be back in my asylum at a given time, otherwise my nurse will give away my milk soup and does´nt sing me a lullaby, that weakens my libido further and makes me sad or agressive.


    And to be constructive:
    was the thread..............................
     
  14. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    I just noticed a new member named Dddiver, maybe we'll have some fun yet . . .
     

  15. Willallison
    Joined: Oct 2001
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    Willallison Senior Member

    Thanks Apex..
     
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