scale model of prospective build

Discussion in 'Boat Design' started by spaceboy, Oct 27, 2013.

  1. TANSL
    Joined: Sep 2011
    Posts: 6,565
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    Location: Spain

    TANSL Senior Member

    Rwatson, thank you very much for your words. You and I have discussed at some point but we have always respected mutually. Something that is not learned building or designing boats is good education, humility and generosity.
    Thank you again.
     
  2. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    I wonder if Dick Rutan knows how to fly. I wonder if 'ol Capt Nat could engineer. Neither can 3D model, yet ones designed a reusable space craft and countless revelations in the industry and the other has quite a few America's Cups under his belt and has made countless engineering advances in the industry, most still in use today.

    I have the skill to model, but also understand what this particular project is all about. This particular project will have plans provided by a well known and respected NA. It's probable this NA will also do the stretch, though also as likely not modeled, but just given instructions as to how to accomplish this stretch with station mold spacing and some rudimentary masses calculations to get things to "hit" at the new length.

    For the builder, there's no need to learn modeling skills, even if there might be an advantage. The math is done, the calculations have been performed and the imagery created, so there's no need for a builder to acquire these skills. Would it be helpful to him? Probably not. He's stated he has trouble with a spreadsheet, so learning 3D modeling is just not something he's going to "pickup" in his spare time.

    Of the 80 designs I currently have in my portfolio, none not a single one, was nailed down into a full commission, because of a cleverly done 3D model image. Expertise, familiarity with the type, reference and recommendation are typically how you acquire clients. About half of mine are repeat customers. One of my repeat clients is a fellow I've known for many years. We met on the race course and I usually beat him. This wasn't so bad, as we all get beat, but I did it in an inferior boat. He wanted to know why, so we crewed with each other. This is familiarity and experience, though also cut throat tactics occasionally. In the end I regretted bring him aboard, as he learned how to beat me more regularly (I should have kept my mouth shut), but I acquired a friend and client, so not a bad trade really.

    I don't think this is the case with TANSL's previous post. I do think translation issues have caused some discontinuity. I also think miss reading station molds (moldes estación) for frame (marcos) spacing and possibly not fully understanding what "lining off" means contributed to a fair bit of it, but I would expect a person with this supposed level of expertise to understand why it necessary to refair stretched sections, with a new line off or that station molds are just arbitrary lines and not physical frames. I couple these things with not understanding the affect prop rake has on the thrust line (as another example) as indigenous and frankly telling.
     

  3. TANSL
    Joined: Sep 2011
    Posts: 6,565
    Likes: 414, Points: 93, Legacy Rep: 300
    Location: Spain

    TANSL Senior Member

    PAR,
    Nobody asks a builder to know how to make 3D models with a computer. In this sense, I do not know what you're talking about, or why there's such a long paragraph you wrote.
    Needless to despise me to refute my arguments. A few technical concepts, well expressed, will be enough to make me understand. My English is bad but enough to understand what is explained properly.
    Frames in my language (in Spain) not say "marco" but "cuaderna". You have a habit of talking about what you do not know.
    Cheers
     
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