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Viking on the beach…

Discussion in 'General Yachting Discussion' started by Pascal, Nov 3, 2023.

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  1. rtrafford, Nov 6, 2023
    #21
    rtrafford

    rtrafford Senior Member

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    Gotta be under tow or setting up for tow with the work boat on the starboard side...and I like Pascal's theory on the FireBoy system (or similar) being the culprit of the hostile shut down...

    Recently had my controller fail, while I was in a marina. Nothing would start when I went to get underway. Bypass wouldn't work, either.
  2. MBevins, Nov 6, 2023
    #22
    MBevins

    MBevins Senior Member

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    That's what I figured until I saw the guys up at the helm. Personally I'd never try to start those engines out there.
  3. Pascal, Nov 6, 2023
    #23
    Pascal

    Pascal Senior Member

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    I can’t imagine anyone trying to even start the engines without inspecting the running gear first. They used a VERY kong tow line to pull her so the tow boat is likely out of frame. Too rough for a hip tow anyway

    and fuel had been pumped out to lighten her up
  4. MBevins, Nov 6, 2023
    #24
    MBevins

    MBevins Senior Member

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    I suspect you're correct , very long tow rope.

    Has anyone in the neighborhood heard anything today? I suspect she went straight to the slings.
  5. rtrafford, Nov 6, 2023
    #25
    rtrafford

    rtrafford Senior Member

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    Hatterized likes this.
  6. RER, Nov 6, 2023
    #26
    RER

    RER Senior Member

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    I got 30 seconds into that and couldn’t take it anymore. Good grief.
    chesapeake46 and YachtForums like this.
  7. Trinimax, Nov 6, 2023
    #27
    Trinimax

    Trinimax Senior Member

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    Saw this on qualified captain instragram page. Not too shabby

    Attached Files:

  8. rtrafford, Nov 6, 2023
    #28
    rtrafford

    rtrafford Senior Member

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    I know. It was awful. 1:42 it begins to move. Last minute it breaks free, then he spins to the crowd to sign off. Painful, but skimming through it you can see a lot of the action as you slide along...
    RER likes this.
  9. Pascal, Nov 6, 2023
    #29
    Pascal

    Pascal Senior Member

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    Turn off the sound as soon as video starts…
    Patemey and C team like this.
  10. Pascal, Nov 6, 2023
    #30
    Pascal

    Pascal Senior Member

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    Another one from QC. Looks like they got away with it although they may have a surprise when they check the shafts.

    Attached Files:

  11. Trinimax, Nov 6, 2023
    #31
    Trinimax

    Trinimax Senior Member

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    I would definitely have a thorough survey done, and will be checking the shafts for straightness and alignment of struts etc. saw someone mention on another forum the possibility of water intrusion into the engines due to the constant waves at the transom exhaust. Hopefully the surge tubes worked as designed.
  12. mapism, Nov 7, 2023
    #32
    mapism

    mapism Senior Member

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    The video as such doesn't worry me as much as the fact that this Alfred Montaner youtuber has more than 300k subscribers.
    Proves beyond any reasonable doubt that humanity is doomed... :(
    chesapeake46 and SplashFl like this.
  13. mapism, Nov 7, 2023
    #33
    mapism

    mapism Senior Member

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    That's a very good point indeed.
    Stripping shafts and rudders is a given, but depending on if and how much of water reversion the engines might have suffered, the bill might skyrocket...
    In this particular instance, underwater exhausts would have been better to prevent that.
    BTW, I've always been curious about the reason why they are so rare in sportfishing boats.
    Can anyone enlighten me?
  14. Pascal, Nov 7, 2023
    #34
    Pascal

    Pascal Senior Member

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    Those stern exhaust outlets look way too small for these 16V2000s
  15. mapism, Nov 7, 2023
    #35
    mapism

    mapism Senior Member

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    Do you mean they could be just the idle bypass, with u/w main exhaust?
  16. Pascal, Nov 7, 2023
    #36
    Pascal

    Pascal Senior Member

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    Don’t known how Viking set it up but indeed other boats I ve run had a bypass at the transom and the main exhaust under the hull. With the top of the main exhaust 8’ up against the ER ceiling and coming down vertically I don’t think water ingestion can be much of concern
  17. SplashFl, Nov 7, 2023
    #37
    SplashFl

    SplashFl Senior Member

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    Several boats back I had a gas boat with underwater exhausts. Although I thought the concept was good, the strange exhaust sound when the boat rocked was not and would never go that route again.
  18. SplashFl, Nov 7, 2023
    #38
    SplashFl

    SplashFl Senior Member

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    Read this AM the captain of the Viking reported the cause of the shut down was the fire suppression system; something that has always been a concern of mine. Looking at the Fireboy schematic I'm thinking the addition of two individual "hidden" switches from the engine's fuel solenoids would provide a way to quickly restart engines if the system's override was to fail.
  19. Capt Ralph, Nov 7, 2023
    #39
    Capt Ralph

    Capt Ralph Senior Member

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    FishFolk have fish boat design down to more than superstition,, it has to sound right to the fish.
    Down pointing or underwater exhaust makes to much racket and scares the fish away.

    Just noticed SplashFL's new post; a great noise example.

    Oval in shape may make them look smaller height wise but they are full size for expanding gasses.
  20. mapism, Nov 7, 2023
    #40
    mapism

    mapism Senior Member

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    Contrarily to common belief, the main raison d'être of u/w exhausts is efficiency, with noise reduction as a side show.
    When properly designed, at planing speed they create a scavenging effect that drastically reduces the exhaust backpressure (which is a big engines enemy), way more than internal dustbin silencers.
    But this only works above displacement speed, hence the need for the so-called idle bypass.
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