False bottom v on a flat bottom

Discussion in 'Boat Design' started by Juijitsufighter, May 4, 2015.

  1. myark
    Joined: Oct 2012
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    Location: Thailand

    myark Senior Member

    "Also I never see ANY wood boats on our river maybe that's for good reason."

    Yes its for a good reason as the same in NZ or Australia you never see wooden boats on a busy day at the boat ramp.

    I found wooden boats make good fire wood.
     
  2. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Well, they won't be seeing you on that wooden boat forum then !
     
  3. Mr Efficiency
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    Mr Efficiency Senior Member

    And those wooden boats are a carbon sink, Myark !
     
  4. myark
    Joined: Oct 2012
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    myark Senior Member

    The cookstove that could burn wooden boats to save 4 million lives per year.
    http://mashable.com/2015/04/20/ecoz...er-All-Partial&utm_medium=feed&utm_source=rss

    Growing up, Phil Ferranto never thought about how people cooked around the world. He took it for granted, like many of us do, thinking most people had access to some type of stove to feed their families.

    "I was really ignorant to the fact that billions of people around the world were cooking on an open fire," Ferranto says, adding how dangerous and inefficient such a setup can be.

    But in April 2011, he cofounded EcoZoom, a social enterprise dedicated to bringing sustainable products into homes in developing countries. Its flagship products are clean cookstoves, which burn fuel more efficiently, saving users money on energy costs. Even more importantly, they reduce the unsafe amounts of smoke that open fires drive into people's homes, and make them less vulnerable to burns.
     

    Attached Files:

  5. whitepointer23

    whitepointer23 Previous Member

    This has a lot to with the op' s questions. Another thread hijacked by the almighty myark.
     
  6. whitepointer23

    whitepointer23 Previous Member

    Years ago In aus flooded keel runabouts were popular with abalone divers. In recent years the kiwis have revived the idea with barcrusher brand boats. This is virtually the same as what you want. The v bottom does its job while on the move and fills with water when it stops.
     
  7. whitepointer23

    whitepointer23 Previous Member

    And just because you don't see a lot of ply boats on your river means nothing. Most of the ally hulls are built in factorys. The man you meet with a plywood boat has most likely built it from scratch and you will hear the pride in his voice as he shows you his labour of love.
     
  8. Juijitsufighter
    Joined: May 2015
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    Juijitsufighter Junior Member

    Thanks yofish for making me realize this forum is not for me, and just how important your time is ( at 11:30pm ) . By the way no has yet to adress my question. Ill leave you guys to argued flat vs v , flat vs v , flat vs v, ... Enjoy , Tim
     
  9. kerosene
    Joined: Jul 2006
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    Location: finland

    kerosene Senior Member

    he must be new to the internet. with free advice you get people discussing what they will. this is not a paid helpdesk so you don't get to ***** (well you always can) about off topic drivel.
    as usual - with little patience one can filter the relevant info.
     
  10. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    Unless of course, you have members with seemingly off forum discussions with the poster, suggesting they need to go some place else, probably someplace they also frequent and are taken more seriously.
     
  11. FMS
    Joined: Jul 2011
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    FMS Senior Member

    The question was addressed a few different ways, although the answer wasn't a simple yes or no, and no one who answered yet has specifically modified the plan you are set on with a v bottom.

    One consideration is whether you want to buy a proven plan and modify it instead of considering alternate plans that better match your requirements.

    Once you begin modifying the running surface, there is a chance you can make things better, and a chance you can make things worse.

    The point is, if you want to make modifications to a proven plan, you are taking on the risk that what you do won't work well.

    A second point is that any boat has strengths and weaknesses. The flat vs v debate is that as you improve one specific characteristic (steering for example) others will probably get worse (stability at rest or draft).
     
  12. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Well, with a name like juijitsufighter, a combative attitude should not surprise ! He says he settled on a particular design because it promised to be an easy build, then immediately decided to complicate things by considering modifications like a super-imposed vee bottom, or a stern tunnel. The effect of either of those things may be adverse, on the boat chosen, it just seems better to choose a design and build it "to plan".
     
  13. whitepointer23

    whitepointer23 Previous Member

    The point I was trying to make to him with my post about flooded keels was that he could fit a false v for ride comfort and leave it open at the stern to fill when stopped for stability. But he spat the dummy and run away. Why myark put a camp stove on there is anyones guess.
     
  14. tom kane
    Joined: Nov 2003
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    Location: Hamilton.New Zealand.

    tom kane Senior Member

    When you Google Wooden Boats "Garvey" and check the draft in the specs they show 4 and 6 inches,just a few I checked and that is the bare boat, same as my 15 foot 6 inch 6 inch v dead rise boat loaded.
     

  15. PAR
    Joined: Nov 2003
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    PAR Yacht Designer/Builder

    Tom, you're smart enough to know this is absolutely useless information and does nothing to change the simple physical realities of immersed objects. Given the same volume, which is the only fair comparison of two immersed objects, a V will always be deeper. There's no denying this basic fundamental. Argument could be made about pressure waves, volume distribution, drag, between the two different hull forms, etc. and yes, this would be a complex and convoluted discussion, but this doesn't change the basic physics.
     
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