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This is how you make the assembly of a 400 meters hull in two months possible: one extra-large block has floated from China... :)
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Containerships built 2011-2020 - 12 photos
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Its the world we live in I guess.
Kind regards, Frank
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Wonderful shot and equally great explanation
Regards
Emmanuel.L.(Malta)
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What is seen here is based on a principle that was known back in WW2, when yards could build an entire Liberty ship in less than a week.
Obviously, there is a several orders of magnitude difference in size, but the logic is the same: assemble ships from pre-fabricated parts in order to minimize the final assembly time.
Building large hull blocks in China has been a pretty regular case for Korean yards for some time now (but there are owners who explicitely forbid this practice, too!). They are shipped to Korea by large heavy lift vessels, like this one:
www.shipspotting.com/gallery/photo.php?lid=3003957
...and then floated into the dry or floating dock. Practice is not limited to container vessels, as there are VLCC tankers built in the same way, too.
There are some temporary modifications to the structure to make it watertight for the purpose: central pipe duct of large container vessels is closed by steel plates, but there are no other major things to be done. Yes, and there are temporary draft marks painted on the "mega-blocks".
Cheers
Vlad
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cheers
Andrew
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thanks for sharing Volker
regards
Emmanuel.L.(Malta)
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Cheers,
Roy
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Greetings from South Korea
Vlad
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