Ecodream, an optimized motor boat

Discussion in 'Boat Design' started by HJS, Jun 2, 2012.

  1. HJS
    Joined: Nov 2008
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    HJS Member

    Ecodream, an optimized motor boat


    Ecodream, an optimized motor boat

    To every boat builder and boat designer appears the dream of the ultimate boat sooner or later. It's all about optimization at all times. Although I have for many years been fascinated by the vision of the ultimate motor boat. The aim was to provide a boat with high efficiency and smooth operation over a wide speed range

    Currently have a 1.2 meter model been tested in a first round to be compared with past experience. Later in the summer of 2012, a 5.5-meter prototype will be built to test how the different components can work together for optimal results.

    The sketch is based on a boat with dimensions 7.5 x 2.0 meters and a maximum total weight around 1.3 tonnes. Of course, the technology can be used in all sizes of boats.

    JS
     

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  2. mydauphin
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    mydauphin Senior Member

    Engineering is not about optimization but compromise.
     
  3. HJS
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    HJS Member

    Ecodream, an optimized motor boat with full scale test
     

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  4. tunnels

    tunnels Previous Member

    there is nothing new under this sun or any other sun !!

    I REMEMBER SEEING THIS AGES AGO !!
    If its so good why aren't more boats using this system ??
     
  5. HJS
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    HJS Member

    Positive intention

    What is your positive intention with your posting?

    js
     
  6. michael pierzga
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    michael pierzga Senior Member

    Long and thin... I like it....looks nice.

    Also the size, 7.5 meters, hits the right spot.
     
  7. Mark Cat
    Joined: Jun 2011
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    Mark Cat Senior Member

    On a 20 ft. tender design, not being an NA, I asked a lot of questions (dumb) about the proposed transition from displacement to planning in regards to the transom aft shape angle, water release lip, engine horse power and anti-ventilation plate position.

    What I found interesting was the use of an adjustable jack plate to help address the many different loading and speed conditions.

    Best regards,

    Mark Cat
     
  8. Jeremy Harris
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    Jeremy Harris Senior Member

    Probably just trying to balance the advertising BS.

    You've been pushing this design concept for a fair while here, without a shred of independent hydrodynamic evidence that your invention works as you say it does. You even tried to sell me the idea some time ago.
     
  9. rwatson
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    rwatson Senior Member

    I thougth that the PDF showed the benefits ? Was I naive to beleive that they were the actual test results, or at least some reliable modelling ?
     

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  10. rwatson
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    rwatson Senior Member

    So, there is nothing that can ever be improved ? That seems a big call.
     
  11. daiquiri
    Joined: May 2004
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    Location: Italy (Garda Lake) and Croatia (Istria)

    daiquiri Engineering and Design

    Of course things can be improved. But the blanket is generally always too short, so you have to decide in which direction you will pull. You gain something on one side and you lose something else on the other side.

    For example, you gain some speed and decrease the slamming forces by lengthening and narrowing the hull (keeping the same displacement), but you lose the space and comfort of a wider cabin, or increase the rolling motions (just to name a few). At the end you have to decide which characteristics are more important for you, which means - you have to compromise. ;)
    Cheers
     
  12. Leo Lazauskas
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    Leo Lazauskas Senior Member

    It is nearly well named. It's wet and a dream. ;)
     
  13. rwatson
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    rwatson Senior Member

    No but ... hes got all those great pictures, and a 15 foot demo model .... dont say it isnt true !!!! :confused:
     
  14. nzboy
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    nzboy Senior Member

    Maybe Mr Dashew has been taking it all in with a nice flat bit under his boats so they can surf at 20knts down waves:)
     

  15. DCockey
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    DCockey Senior Member

    The concept of the interceptor ahead of the transom is interesting. I'd like to know what the "plots" of lift are based on.

    I'm always suspicious of anyone claiming an "optimized" design without knowing what the design was optimized for, what metrics were used, and what the constraints were.

    But if the blanket can be made larger the loses may be minimized. But the costs and effects of making the blanket larger need to be understood. Then soon after the blanket is made larger the amount of space that is desired to be covered expands.
     
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