Please comment my Planing hull

Discussion in 'Boat Design' started by srinath88, Mar 10, 2015.

  1. srinath88
    Joined: Jul 2014
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    srinath88 Junior Member

    Ahead upper part angled for reduce air resistance
     

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  2. srinath88
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    srinath88 Junior Member

    more photos
     

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  3. gonzo
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    gonzo Senior Member

    Unfortunately, you need to go back to the drawing board. I suggest you make a search of typical high speed boats. That will guide you to what usual shapes are.
     
  4. daiquiri
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    daiquiri Engineering and Design

    Srinath, it is not a planing hull.
     
  5. messabout
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    messabout Senior Member

    Tapering the forward end may seem, at least intuitively, capable of "cheating the wind". It simply does not work quite like that. Terms such as; cheating the wind, give aerodynamicists a headache.

    Sorry to rain on your parade.
     
  6. Mr Efficiency
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    Mr Efficiency Senior Member

    daiquiri is a learned man, but I think it could be construed as a "planing hull", imo. Just not a good one ! I don't know about it being a wind cheater, but the term "coffin cheater" comes to mind, it would be a hair-raising conveyance, and the white-knuckle excitement would start well before air resistance issues kicked in. The droopy bows on some high-speed planing hulls, pretty common from the 60's onwards, is not all about aerodynamic penetration, but can improve it. And possibly create other problems, as well.
     
  7. TANSL
    Joined: Sep 2011
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    TANSL Senior Member

    Many hulls, with sufficient power, can lead to a condition of planing. But I think the most honest is advising srinath88 to start again because he has not chosen the right lines.
     
  8. rxcomposite
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    rxcomposite Senior Member

    It is a truncated displacement hull;).
     
  9. srinath88
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    srinath88 Junior Member

    thanks everybody i will redesign it
     
  10. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    Before you pick up the mouse again, spend some time with yacht design texts, as you're way off what would be remotely considered a planing hull and since you can't see this, it's clear you have lots of study to do, before you give it another go.
     
  11. Mr Efficiency
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    Mr Efficiency Senior Member

    I thought it looked more like a pencil-sharpener, but what would I know.
     

  12. tom28571
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    tom28571 Senior Member

    Oh my, just too too good.
     
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