How stable can a kayak be?

Discussion in 'Press Releases' started by icetreader, May 21, 2017.

  1. icetreader
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    icetreader Senior Member

  2. BlueBell
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    BlueBell Ahhhhh...

    They can be really stable if you attach 100 pounds of lead to the bottom of them. ;)
     
  3. gonzo
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    gonzo Senior Member

    That is not a kayak
     
  4. NavArc...
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    NavArc... Junior Member

    As Gonzo points out. That is definitely not a kayak..
     
  5. upchurchmr
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    upchurchmr Senior Member

    I guess you didn't like the responses on Woodenboat.com
     
  6. icetreader
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    icetreader Senior Member

    I won't argue with you, since the Wavewalk S4 is based on a new invention which is recognized by the US Patent and Trademark Office (USPTO) as a new type of watercraft, and it features a twin-hull and a saddle seat reminding the saddle seat found in large-size personal watercraft (PWC a.k.a. "jet-ski").
    Another difference between Wavewalk kayaks and common kayaks is the fact that Wavewalks do not feature the combination of backrest and footrests, since they don't require the user to sit in the L posture.

    However, FYI, the US Coast Guard (USCG) defines Wavewalk's watercraft as Kayaks due to their size, form, certain proportions, and the fact that their primary use is kayaking, namely paddling with dual blade paddles.
    The USCG has been inspecting the production of Wavewalk kayaks regularly for over a decade, as it does with all US manufacturers of all types of watercraft.

    When people outfit their Wavewalk kayaks with motors (electric trolling motors or outboard gas engines), they are required to register them with local authorities.

    BTW, the S4 basic dimensions are:
    L = 13', W = 38", H = 17", Weight: 98 lbs
     
  7. upchurchmr
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    upchurchmr Senior Member

    Are you the designer of manufacturer?
    Sure sounds like an ad to me.

    98#??? Way too much.

    My back hurts when I don't have a backrest - do you think that is a positive feature?
    Sure not going very fast - that narrow tunnel will cause lots of drag.
     
  8. gonzo
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    gonzo Senior Member

    Is that a design patent? I don't see anything in it that would be awarded an utility patent. Can you post the patent number?
     
  9. Jolly Amaranto
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    Jolly Amaranto Junior Member

    Yeah, sounds like an ad to me too. On his web site (link in his sig line) this is listed. US Patent 6871608
     
  10. upchurchmr
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    upchurchmr Senior Member

    Posting an ad is against the rules of the forum isn't it?
     
  11. Boat Design Net Moderator
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    Boat Design Net Moderator Moderator

    Within reason, it's great to post your own boat design project or concept (ads not relating to boat design or boatbuilding would certainly not be appropriate, but if you're willing to show and discuss something you've designed or built it's fine to post it in the Boat Design forum.)

    Will move this thread to the Press Releases forum however where it may be a better fit than posted as a question in the Stability forum.

    <thread moved>
     
    Last edited: May 26, 2017
  12. icetreader
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    icetreader Senior Member

     

  13. messabout
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    messabout Senior Member

    At 38 inches of width almost any design would be reasonably stable. The most stable of all the 38 inch beam boats would be a 38 inch wide flat bottom. A kayak is typically less than 30 inches wide, slick ones less than 24 inches wide, no matter how the USCG chooses to classify that boat.
     
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