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Thread: Rogue Waves

  1. #1
    Join Date
    Nov 2016
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    2,636

    Default Rogue Waves

    Constructive Interference? Or a 'Rogue Hole'....?



    Is this what could have 'nixed' Susie Goodall?
    She tells of the 'screaming' of the wind, for hours, and that her Rustler was coping, with the JSD deployed. Then it all went quiet.....

    Have a look...


  2. #2
    Join Date
    Jul 2008
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    East coast UK. Mostly. Sometimes the Philippines
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    9,810

    Default Re: Rogue Waves

    I thought the bridle on her JSD failed?

  3. #3
    Join Date
    Jun 2019
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    Scarborough
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    635

    Default Re: Rogue Waves

    Quote Originally Posted by Minn View Post
    I thought the bridle on her JSD failed?
    Yes that's right.

    I've been hit by a submarine's wave ( nothing else to create it) and it seemed to be a near-capsizing nightmare in the middle of an otherwise jolly cruise.
    It was off North Germany, heading to Helgo with the shipping lanes behind me.
    I've had 2 rogue waves just in that spot, in different yachts in different years. Sudden huge terrifyingly short high waves out of nowhere, then back to normal a minute later. Coincidence, maybe.

    Someone's got a book out about rogue waves I think Zoidberg.
    Last edited by Ohlin Karcher; 03-10-19 at 10:29.
    "Now shall the gentleman haul and draw with the mariner"
    John Hawkins

  4. #4
    Join Date
    Jun 2006
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    Solent, Atlantic + E. Med
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    583

    Default Re: Rogue Waves

    Quote Originally Posted by Minn View Post
    I thought the bridle on her JSD failed?
    Correct - as a result I understand the manufacturers of her drogue have now changed from a cow hitch at the outboard end of the bridle to proper splices.

  5. #5
    Join Date
    Nov 2016
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    2,636

    Default Re: Rogue Waves

    The question is 'What caused the failure'..... 'How did it come about?'

  6. #6
    Join Date
    Jun 2013
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    Hopefully somewhere warm
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    9,653

    Default Re: Rogue Waves

    Quote Originally Posted by zoidberg View Post
    The question is 'What caused the failure'..... 'How did it come about?'
    Cos sail in the southern ocean for long you'll be out in some monster waves. Seem to be plenty reports of how quiet it goes in the troughs.

  7. #7
    Join Date
    Jun 2019
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    Scarborough
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    635

    Default Re: Rogue Waves

    What's the deepest reported rogue trough?
    "Now shall the gentleman haul and draw with the mariner"
    John Hawkins

  8. #8
    Join Date
    Sep 2016
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    SoF
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    Default Re: Rogue Waves

    It’s also a story of how science was so certain then did a quick about face. And I’m sure the branch of science involved would not be a million miles away from the climatologists who also carry that same certitude today
    Neither a Leaver or Remainer be

  9. #9
    Join Date
    Aug 2009
    Location
    Scotland.
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    14,393

    Default Re: Rogue Waves

    Itís been worked out how they form recently, modeled and tested. Google it.

  10. #10
    Join Date
    Apr 2019
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    Wales
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    931

    Default Re: Rogue Waves

    Quote Originally Posted by Ohlin Karcher View Post
    What's the deepest reported rogue trough?
    They're still not quite recognized so the research isn't quite there (and I've been surfing for them if you'll excuse the pun). In theory they can be as deep as a rogue wave is high (according the physics on Rogue Wave studies alone) if not a little deeper (gravity ftw). So if you're caught out there with a 15m rogue trough (we're probably talking at least a Force 7/8 there so normal wave height of about 4-8m), you're probably not coming back up and that's not gonna matter whether your boat is allegedly unsinkable or not.

    Rogue holes are not the bit before and after a rogue wave (see Three Sisters) those are (I think) trenches, though you may have two elevated waves first and after the hole. It literally is an inverted rogue wave as far as the physics is concerned an you could arguably have a three sisters version (so you could encounter said 15m hole even at a Force 5-6... if nature hates you that much, stay off the water).

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