speed boat design

Discussion in 'Boat Design' started by tonipu, Jan 12, 2021.

  1. Alik
    Joined: Jul 2003
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    Alik Senior Member

    tonipu, if You designing this for excersize, its ok. If You think You can design the boat for construction and commercial use - better to go to professional designer.
    You can draw in 3D, but You can't design real boats yet.
     
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  2. tonipu
    Joined: Dec 2014
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    tonipu Junior Member

    I apriciate all advice , i enged profesional company very good in strucural design, very experience, but litle less expirience in planing hull hydrodynamics, so for strucural, nesting wil be done all very well. I will apriciate any sugestion and advice in planing botom design, so we can modify a little bit
     
  3. tonipu
    Joined: Dec 2014
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    tonipu Junior Member

    3d model of 2 shepes
     

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  4. tonipu
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    tonipu Junior Member

    3d
     

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  5. Howlandwoodworks
    Joined: Sep 2018
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    Howlandwoodworks Member

    I always liked Raymond Hunt's designs.
     
  6. tonipu
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    tonipu Junior Member

    Which of his boat in particular
     
  7. Howlandwoodworks
    Joined: Sep 2018
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    Howlandwoodworks Member

    tonipu,
    Why all of them. I have been on many deep V hulls but only on two of his designs, one power and one sail.
    When I was a kid a neighbor had a 13' Boston Whaler. It had a great (dollars per fun ratio).
    Then on Easter Sunday 2010 in San Diego I was invited onboard (JAVA) a 39' 10" Concordia Yawl. There was a 7.2 earthquake that day centered in Baja CA. I was just onboard for a short time and we didn't take her out. But I still recall that day as if it were yesterday.
    The best of luck with all your endeavors.
    John
     
  8. gonzo
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    gonzo Senior Member

    If you need a commercial boat for passengers, a proven design is the best solution. This boat does not need to break records or prove the limits of a new design. It has to cruise at a moderate speed, carry passengers safely, and behave safely and predictably. Modifying a stock plan to get the top close to you rendering will be cheaper and have better results. A computer will generate pretty drawing, but it is not a boat design. For example, you are specifying engines before calculating the resistance of the hull at the target speed. One of the models looks like a sailboat and is not proper for planing. They both have sharp and deep forefoots which will make them broach going downwind with waves.
     
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  9. tonipu
    Joined: Dec 2014
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    tonipu Junior Member

    "This boat does not need to break records or prove the limits of a new design. It has to cruise at a moderate speed, carry passengers safely, and behave safely and predictably" this is exactly What i need yes i refuse because of that sugestion the "sailboat like botom" i i stick with second one.
    15 degre deadrise and similar botom widht of proven design 3000mm. Only sugestion i think i need is font planing part aperance withaot changing top of the design
     
  10. tonipu
    Joined: Dec 2014
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    tonipu Junior Member

    My New version, slight change in Front chine and botom, i think this Will be better
     

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  11. bajansailor
    Joined: Oct 2007
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    bajansailor Marine Surveyor

    Tonipu, please take heed of what Gonzo and AliK have told you re using a proven design, rather than trying to design a boat using the renderings you have shown above.
    Fast planing boats are difficult to get right, and easy to get wrong, especially re the contract speed - and then they are very expensive to correct.
    As Gonzo says, once you have your design selected, then you can style it above the gunwhales like how you have shown.
     
  12. tonipu
    Joined: Dec 2014
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    tonipu Junior Member

    Yes i actauly do some mesurment on proven hull like this( they have litle problem with broaching in folowing sea, but very good in head and side wawe keeping) , and now is pretty close, to those 2 proven hull, that i have oprtunity to test. But if you have some sugestion to i prove i am open to it. We also do simulation of wave and resistence in maxsurf, seems very good, 30kts about 350hp, which for me is very vell. 6000kg weight
     
  13. tonipu
    Joined: Dec 2014
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    tonipu Junior Member

    3d printing model of 1:25 scale model
     

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  14. tonipu
    Joined: Dec 2014
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    tonipu Junior Member

    Probably i Will try some towing pool testing, to sea What hepen with the model
     

  15. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    The resistance figures for your blue model may come out OK, but it does not have the attributes of a boat for good sea-handling, it appears to be a candidate for "submarining" and broaching in following sea conditions.
     
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