Largest semi-submersible may lift Concordia

Discussion in 'All Things Boats & Boating' started by El_Guero, Oct 10, 2013.

  1. El_Guero

    El_Guero Previous Member

    This is crazy, but it might work.

    http://www.bbc.co.uk/news/world-europe-24483469

    They want to use the Dockwise Vanguard to carry the Costa Concordia ....

    Will it work? How long would it take for it to lift that much water up, and let the water drip out of the Concordia?
     
  2. CDK
    Joined: Aug 2007
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    CDK retired engineer

    This Vanguard must be a pretty expensive piece of equipment.
    I wonder what they use it for when they are not lifting the drowned Concordia. According to the media there must be a 5 ft wooden bed secured to the deck to prevent it from being dented by this heavy load, so I guess it is normally used for other purposes (?)
     
  3. El_Guero

    El_Guero Previous Member

    No. It is used for lifting oil field platforms for the North Sea, etc..

    I think the bed is to disperse any unexpected 'hot points' of weight, remember this thing is full of water, I don't think you would want a steel beam forced into the deck of the Vanguard by 60 feet of water and ship above it.

    We used wood, I didn't think over 4 inches helped spread the load, but we used wood in air transport in the US Army beneath tanks, and other heavy loads. I only got two short loading classes the whole time I was in ... darn it!

    :)
     
  4. michael pierzga
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    michael pierzga Senior Member

    The really incredible salvage ship is the one that the Dutch ,Smits salvage , constructed in Rotterdam to lift the Russian nuclear submarine Kursk.

    Single use , complex and gigantic.
     

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  5. El_Guero

    El_Guero Previous Member

    What was the name, and do you have a link to more information?

    I still think the Concordia will be a feat .... It was bigger than WW2 aircraft carriers .... almost as big as WW2 battleships?
     
  6. michael pierzga
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    michael pierzga Senior Member

    GIANT 4

    Google... Smits Kursk

    Must be info on the net.

    Kursk was a nuclear accident...the sub had to be lifted from deep water.

    Impressive feat of engineering.
     
  7. DCockey
    Joined: Oct 2009
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    DCockey Senior Member

    Giant 4 was converted, not purpose built, to lift the Kursk. After lifting and moving the Kursk the Giant 4 was returned to its original configuration. Conversion of the Giant 4 and recovery of the Kursk was included in one of the episodes of National Geographic's Mega Movers.
     
  8. michael pierzga
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    michael pierzga Senior Member

    Interesting...

    Ill have to surf National Geographic..

    I remember that smits built a scale model of the Giant , then tank tested the lift.

    Smits had a documentry on thier web site but I see that its been taken down
     
  9. DCockey
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    DCockey Senior Member

    My recollection from watching the Mega Movers episode was the Giant 4 was modified by cutting a hole in it and creating a "moon pool". The Kurst was slung under the Giant 4, not lifted onto the deck.
     
  10. daiquiri
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    daiquiri Engineering and Design


  11. El_Guero

    El_Guero Previous Member

    There was no answer there! That was a trick.
     
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