Why Are These Ships Designed To Sink?

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  • čas přidán 29. 12. 2022
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    ✩ABOUT THIS VIDEO✩
    In this video, we look at how semi-submersible heavy lift vessels are used to transport cargo around the world when it is too heavy to be lifted by any crane.
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Komentáře • 267

  • @qihengng5993
    @qihengng5993 Před rokem +1410

    a ship shipping ship, shipping shipping ships

    • @Ricklet0ons
      @Ricklet0ons Před rokem +81

      Yes but what ships that are shipping ships, that are shipping those ships, shipping ships, shipping ships?

    • @JohnFallot
      @JohnFallot Před rokem +78

      A ship shipping ships, shipping shipping ships shipped shipping shipping ships, ships shipping ships shipped shipped shipping ships.
      Translation: A ship that transports ships, which is shipping those ships, was itself shipped whilst shipping ships. It is shipping ships that themselves are shipping ships. Recursive shipping ensues.

    • @pedror598
      @pedror598 Před rokem +73

      The word ship no longer has any meaning to me

    • @ErnestMC
      @ErnestMC Před rokem +19

      Hahaha you maid my day.

    • @Chronostra
      @Chronostra Před rokem +30

      @@ErnestMC what about the butler, lol

  • @frederiknielsen6038
    @frederiknielsen6038 Před rokem +282

    Occationally, these ships will show up on radar as two seperate echoes if they are large enough. This can lead to a few minutes of head scratching as you try to figure out what exactly you are looking at.

    • @chaomatic5328
      @chaomatic5328 Před rokem +23

      I say it's a traction raft following it's unsuspecting prey. Good ol' municipal Darwinism!

    • @seantaggart7382
      @seantaggart7382 Před rokem +15

      *Looks at radar* HOW THE H-- oh okay

    • @Tkmined
      @Tkmined Před rokem +13

      Honestly, these damn things are so big that I wouldn't be surprised if you saw them on the horizon before picking them up on Radar (in a clear day of course)

    • @iwatchwithnoads7480
      @iwatchwithnoads7480 Před rokem

      "Russians are coming"

  • @Ky-kx2hd
    @Ky-kx2hd Před rokem +550

    Can you do one about those semi-submersible vessels that turn sideways? Like, the bow points upright when it's deployed? That's some crazy engineering.

    • @jellysquiddles3194
      @jellysquiddles3194 Před rokem +65

      Isn't that this 1 unique research vessel?

    • @LocalChamp
      @LocalChamp Před rokem +53

      @@jellysquiddles3194 Still would be a cool video.

    • @jellysquiddles3194
      @jellysquiddles3194 Před rokem +8

      @@LocalChamp Yeah!

    • @kilianortmann9979
      @kilianortmann9979 Před rokem +40

      @@jellysquiddles3194 Yes, the RP FLIP (floating instrument platform) scientists love their acronyms.

    • @PianoKwanMan
      @PianoKwanMan Před rokem +6

      @@kilianortmann9979 Inconceivable. That's quite an unthinkable ship

  • @awmperry
    @awmperry Před rokem +147

    We had one of these - Zhen Hua 33 - in Stockholm in 2020 when a new bridge was being delivered from China. It was assembled on two barges, floated aboard and welded to the deck, and transported all in one piece. I was posted to guard her quay during her visit - impressive boat.

    • @cattraknoff
      @cattraknoff Před rokem +6

      I'm sorry bro but that bridge will collapse inside of a decade or two, it was made in China for export.

    • @awmperry
      @awmperry Před rokem +8

      @cattraknoff I don't have a horse in the race either way. A lot of people hate it - as far as I'm concerned it's a bridge like any other.

    • @Meatrocket69
      @Meatrocket69 Před rokem

      @@cattraknoff you have no idea what you are talking about stop making stupid comments please

    • @jishan6992
      @jishan6992 Před 11 měsíci

      AHH china, getting their hands in every countries pocket

  • @medea27
    @medea27 Před rokem +9

    For me, the most impressive moves the semi-submersibles make are the oil rigs... out of the water they are so tall & wide with such a high centre of gravity that it looks like a truck carrying a 6-storey office building on the trailer! The forces that all that steel resists are truly mind-boggling.

  • @LPRD
    @LPRD Před rokem +21

    Perhaps interesting to mention that both the blue marlin and Vanguard are owned by one company, (dockwise), now part of Royal Dutch Boskalis. I love these kinds of niche ships

  • @charliescott7764
    @charliescott7764 Před rokem +32

    The other application is to substitute for dynamic launches of ships. HMS Glasgow Type 26 Anti Submarine frigate was recently skidded onto a barge at Govan on the Clyde, towed to Loch Long, floated off and taken back to Scotstoun for filling out. Dynamic launches are much more dramatic but also stressful to the hull.

    • @PsRohrbaugh
      @PsRohrbaugh Před rokem +8

      I'm no shipwright, but I always thought a dynamic launch was a good stress test.

  • @everythinglakefreighters47

    Can you guys do a video on how the design of Lake freighters on the Great Lakes have changed throughout the decades? Would make for an awesome video

  • @xmarksthespot6699
    @xmarksthespot6699 Před rokem +5

    "moving ships is just a side hustle for them" damn that was badass

  • @mandez3498
    @mandez3498 Před rokem +8

    I was fortunate enough to spend a week on the HMAS Adelaide and seeing the Canberra brought back great memories. Thank you again to the the Australian Navy!!

  • @bigutubefan2738
    @bigutubefan2738 Před rokem +47

    Great video, as ever! I'd be fascinated to see how the calculations work to show the centre of buoyancy is still below the combined centre of mass when lifting/pumping out starts, and any effect on the GM moving due to the ballast tanks (the same effect from sloshing, as in your "Potatoes almost Capsized this ship" video (Commodore Clipper), the free surface effect inside ballast tanks that are only partially filled).

    • @Tinil0
      @Tinil0 Před rokem +3

      Yeah this HAS to be a mathematically complex operation. I have no doubt they have worked it out, but it does make you curious, huh?

  • @mortified776
    @mortified776 Před rokem +2

    It's worth mentioning that the load is welded to the heavy lifter's deck after being raised and is cut free before refloating. Needless to say, with this kind of load the risk of it coming lose while underway needs to be as close to zero as humanly possible!
    First time I saw anything on a heavy lifter upclose was HMS _Nottingham_ on the MV _Swan_ in Garden Island, Sydney back in 2002 after she had that all too close encounter with Wolf Rock off Norfolk Island. The Type 42 destroyers weren't big ships even compared to their contemporaries (very much a bean counter's design), but even she seemed oddly colossal with her whole hull out of the water compared to when I'd seen T42s alongside elsewhere.

  • @sirBrouwer
    @sirBrouwer Před rokem +7

    i have worked on one of the two semi's from Big Lift. while it was in port. they were actually working on two at the same time as they. the two sister ships would have to be work in tandem. it was even for them a new thing. they only needed to be able to lift the actual platform out of the water and (the reason as to be in tandem side by side) sail so that they could sail above the tower part.
    really impressive

  • @sereminar4
    @sereminar4 Před rokem +5

    That's so rediculously cool!!!!

  • @turbooggyboy
    @turbooggyboy Před rokem +17

    They actually used one of these to transport a bridge from China to Stockholm, which took the ship through the Stockholm archipelago to drop the bridge onto barges near the city center, which then allowed for the bridge to be pushed into place.

  • @pakoize
    @pakoize Před rokem +2

    Thank you, when I was a child my grandfather instilled a love for sea and ships trough series of stories and books. But then life happened and I found more profitable ventures. Casual Navigation you have been a God sent and rekindled that old passion and interest

  • @The_Viscount
    @The_Viscount Před rokem +2

    You can actually trace this back to a similar design the US Navy began using in the early 20th Century. Floating Drydock USS Dewey YFD-1 was launched in 1905. The vessels developed based on this design provided essential forward repair support for the US Navy during the island hopping campaign of the Second World War. Once an island was secured, a floating dry dock and supply ships could be moved into a suitible cove or existing harbor instantly providing the ability to repair, rearm, or refit even capital ships (Battleships and Carriers). While the number available was not high, it did allow for quick emergency repairs to help a ship survive the journey from the front lines to the US West Coast.

  • @Arthur_da_dog
    @Arthur_da_dog Před rokem +5

    Man, your channel has gotten so far. Having been following you since your very early days (

    • @beardedchimp
      @beardedchimp Před rokem +1

      I've been watching since maybe 1000 subs when I was trying to search for something ship related and came across their early videos. I'm so happy that their hard work has paid off. The early videos were full of comments saying "I can't believe you don't have more subscribers, I hope you take off!". Lovely to see that has actually happened.

    • @Arthur_da_dog
      @Arthur_da_dog Před rokem

      @beardedchimp we all had faith in his success. We knew he was going to hit it big.

  • @michielput3311
    @michielput3311 Před rokem +1

    I once was in the port of Rotterdam for a tour of the newly reclaimed land. The harbour on it was already kind of in operation. At the time the pioneering spirit, which used to be one of the biggest semi submersibles and the at the time biggest cargo ship, the HMM algeciras, were both in port. The pioneering spirit was submersed and carrying some kind of platform but there were problems on board accoarding to the tourguide so it wasn't going to actually move for a few days.

  • @cyrilio
    @cyrilio Před rokem +5

    These Dutch ships are amazing. Would love to see an episode on crane ships.

  • @FerroequinologistofColorado

    I am insanely fascinated by these specialized Semi-submersible heavy lift ships.

  • @baileywright1656
    @baileywright1656 Před rokem

    Awesome, I always wondered about these - thanks for the video!

  • @robbabcock_
    @robbabcock_ Před rokem

    Wonderful video! I'm learning about things I never even knew existed!

  • @johnbee7729
    @johnbee7729 Před rokem

    Too cool. Thanks for this. I'll have an eye for these during my shio spotting endeavours

  • @robinj1052
    @robinj1052 Před rokem +4

    Excellent video once more, thanks. Pretty clever to use a semi-submersible vessel to transport a semi-submersible rig, isn't it? It is massively impressive: the DOckwise Vanguard can lift up to 110.000 tonnes. If you compare that to heavy lifting vessels, like the Heerema Sleipnir (20.000 tonnes in tandem lift) or the Allseas Pioneering Spirit (over 48.000 tonnes and the largest vessel in the world - also kind of semi-submersible), it is a huge difference.

    • @mr_gerber
      @mr_gerber Před rokem

      I've seen both Pioneering Spirit and Saipem 7000 up close, and I have to say they're extremely impressive!

    • @robinj1052
      @robinj1052 Před rokem +1

      @@mr_gerber I agree. Have not been on the Saipem 7000, but have been very close to it. Comparable to the Thialf, which at the time, was actually also in the area. They both were moored in Stavanger region, Norway.

  • @paulburman9972
    @paulburman9972 Před rokem +1

    Another great video. Thank you ⛴🛳🛥🚤

  • @EmpressSock
    @EmpressSock Před rokem +1

    We have a similiar thing in our harbor in hamburg (germany)
    they are basically dry docks that float in the river!

  • @CaptMarkSVAlcina
    @CaptMarkSVAlcina Před rokem

    I live in Melbourne Australia and very glad you said Port Phillip and not Port Phillip Bay.

  • @Olebull93
    @Olebull93 Před rokem +5

    I see the Russians have implemented this feature on some of their navy ships. Take the Moskva for example, it has demonstrated a nack for staying under water.

  • @alexrossouw7702
    @alexrossouw7702 Před rokem +2

    I often see these ships hauling gigantic rigging structures just off Cape Town's coast.

  • @jamnchips
    @jamnchips Před rokem +1

    At 1:42, the text describes the boat as a “heave lift vessel”. I’m not entirely sure if that is a spelling mistake or intentional, considering it does indeed lift things on the heave axis, which makes the caption technically correct

  • @shiamjad
    @shiamjad Před rokem +1

    i love all your informative videos... you make them so easy to understand... keep the excellent work going

  • @TheUnknownDutchman
    @TheUnknownDutchman Před rokem +3

    In a previous video you explained the difficulties & dangers of drydocking a ship. I would think those risks would be highly exaggerated by working boat to boat during the docking phase?

  • @seanworkman431
    @seanworkman431 Před rokem

    I was working on Sydney Harbour or Port Jackson as it is named on the charts, when a RN ship that had been holed off New Zealand was loaded on a semi-submersible for the trip back to the UK. It was a surprisingly fast operation but off course we couldn't get close enough for any good photo's. Sure beats towing long distance.

  • @Gallalad1
    @Gallalad1 Před rokem +1

    I'd love to have been in the room when they came up with this. Like there's just two lads trying to work out how to move those structures.
    One lad hits the blunt and is like "bro.... What if we got a massive ship and just sank it"
    Second lad is like "but bro, then we lose the ship"
    First lad responds "that's just it bro..... We make it rise again"
    Queue mutual "brooooooo"

  • @mbvoelker8448
    @mbvoelker8448 Před rokem

    Those ships are simply incredible!

  • @zacm.2342
    @zacm.2342 Před rokem

    Was half expecting the 'ship shipping ship shipping shipping ships' meme to come up :P

  • @benoithudson7235
    @benoithudson7235 Před 4 měsíci

    I saw a pair of GPO semi-submersibles in Halifax this summer hauling blades and towers for some US offshore wind project. I was a bit confused, since there was seemingly nothing floating on it, but maybe they were on a side gig?

  • @auntbarbara5576
    @auntbarbara5576 Před rokem

    Aunty Barbara's favourite ship channel!

  • @livingsimplytosimplylive6817

    Happy New Year’s

  • @bas6983
    @bas6983 Před rokem

    Dockwise/Boskalis has a solution for the buoyancy casings. The MS3 has/had a 300mt counterweight at the stern. She was able to submerge with the casings placed in their storage position. Lowering the counterweight to the bottom and “winching” the vessel down gives sufficient longitudinal stability to operate without the casings.

  • @AlasdairGreig
    @AlasdairGreig Před rokem

    I've had multiple semi submersible heavy lift ships anchored off my hometown to load/unload oil rigs including the Blue Marlin over the years

  • @CannonGround
    @CannonGround Před rokem +3

    Another excellent video! In the same vein, I would love to see a video on floating drydocks, and/or the R.P. Flip!

  • @zaco-km3su
    @zaco-km3su Před rokem

    Heard of these. Quite impressive.

  • @JohnnyAngel8
    @JohnnyAngel8 Před rokem

    I never knew semi-submersibles existed. Thanks!

  • @CzechTex
    @CzechTex Před rokem

    Always interesting to see folks explain the Blue Marlin, and her role in saving the USS COLE. I was only 11 when she was attacked and my Uncle aboard her. Fortunately, he was not harmed, but it left a deep impact on him indefinitely.

  • @hwebbb-xr8fe
    @hwebbb-xr8fe Před rokem

    I work on jack up heavy lift ships, do a video on that to show people how cool they are

  • @extremelycreativeusername

    The MV Blue Marlin in currently anchored off Singapore as of the time of writing this, I've managed to get a glimpse of her and she is amazing to see in real life up close

  • @rezabela24434
    @rezabela24434 Před rokem +1

    Nice

  • @QbertTehKiller
    @QbertTehKiller Před rokem

    Halloween idea for your channel: on Halloween do a video like this and then slowly transition it to a story about how the crew is trying to escape a kraken or sometging

  • @johnburn8031
    @johnburn8031 Před rokem

    I've never heard of such ships before. 😮😯

  • @farmerpete0768
    @farmerpete0768 Před 7 měsíci

    That’s probably the perfect shop in rough seas, just submerge itself under the water and avoid the big waves

  • @TheTeaLordRBLX
    @TheTeaLordRBLX Před rokem

    They’re classed as “Heavy Load ships” on vessel finder if you wanna see where some are

  • @aporlarepublica
    @aporlarepublica Před rokem

    I was at that Spanish port when they took the Canberra's hull to Australia. And boy, yes, that thing was big...

    • @CaptMarkSVAlcina
      @CaptMarkSVAlcina Před rokem

      They was other one as well after that. Came to my Port in Melbourne Australia

  • @slothfulcobra
    @slothfulcobra Před rokem

    Some of these are used for taking yachts on long journeys, since yachts are usually designed for luxury instead of long voyages, so wealthy people will jet across the sea and have their yacht transported after them.

  • @themangix357
    @themangix357 Před rokem +1

    Do an explainer about other semi-submersibles. IIRC there are those ships that kinda flips?
    I don't know the name but they're semi submersibles too, but instead of the whole ship semi-sinking, the stern fully sinks, while the bridge on the bow remains afloat and flips 90° upward.

  • @AbrasiveCarl
    @AbrasiveCarl Před rokem

    The cost of concordia, what a great internet historian video.

  • @cagedtigersteve
    @cagedtigersteve Před rokem

    I’ve seen this Blue Marlin hauling an oil rig before. Quite a site to see.

  • @adro894
    @adro894 Před rokem +1

    Yes I see these ships a few times a year moving oil rigs into port for servicing

  • @SH4GN457Y
    @SH4GN457Y Před 10 měsíci +1

    Of course the Blue Marlin is bright orange

  • @196cupcake
    @196cupcake Před rokem +2

    If a heavy lift vessel gets damaged, what carries it? Can they carry each other? Maybe using two, side by side, to carry one? Or, would it be allowed to sink where it is?

    • @sirBrouwer
      @sirBrouwer Před rokem +2

      well yes that is possible. for about every version there is a bigger one (unless you are the biggest)
      and other wise yes you can sail in a tandem like way.
      I have been somewhat involved with Dockwise when they had a project where they indeed needed to lift a big jacked using two semi's in a tandem side by side.
      If yo have the money with ships about everything is possible. your biggest limitation is that you will need a port that can accommodate it

    • @adillakandi.r
      @adillakandi.r Před rokem

      Just using the bigger heavy lift vessel to carry another heavy lift vessel

    • @196cupcake
      @196cupcake Před rokem

      @@thesauce1682 Exactly! That's what I'm saying. Imagine that conversation: "Sir, usually in these situations, we'd hire a ship carrier ship, but this one is the biggest of the ship carrying ships, so ... we'd have to build a BIGGER ship to carry this one ... so, I think we should let the Sea take her, sir."

    • @sirBrouwer
      @sirBrouwer Před rokem

      @@thesauce1682 they could use two of those ships at once, or just use enough barges to do the trick.

  • @christophersummers1939

    this ship goes down so often, we've rechristened her the mv _yo mama_

  • @seanscon
    @seanscon Před rokem +1

    Hi
    how do the balast tanks take in water? are there finlters to block large objects such as fish, so that they dont damage the plumbing? thank you

    • @crimsonsnow2469
      @crimsonsnow2469 Před rokem +1

      Ballast tanks do have some sort of filters and some ships have whole cleaning system. First use is ofcourse is to prevent any contamination, but second of all it's to prevent any invasive species to be released into countries where it would harm the ecosystem. (example would be crabs from China appearing in Germany, destroying ecosystems). This is because of you taking in the water in your departure port and releasing it in the arrival port.

  • @LNgKhoi
    @LNgKhoi Před rokem

    I thought these things existed, but doubted that because nobody ever talked about them. Now it is verified in front of my eyes.

  • @reubenjackson7829
    @reubenjackson7829 Před rokem

    Could you make video on how they secure these ships to their decks

  • @Zestrayswede
    @Zestrayswede Před rokem

    These ships have also been used to transport things for some bridge and tunnel construction projects, I'm pretty sure... _or maybe they were just semi-submergible barges_

  • @xander_man
    @xander_man Před rokem

    I’d be curious to find out whether they do things like painting, cleaning, etc. whilst the hull of the passenger is out of the water

  • @lexusdriver1963
    @lexusdriver1963 Před rokem

    One of the coolest ships ever. Load a ship from the poop deck.

  • @970357ers
    @970357ers Před rokem

    Always thought these look like something out of Thunderbirds.

  • @ajidamarjati
    @ajidamarjati Před rokem

    Just read about Dockwise Vanguard (BOKA Vanguard). By theory she can fit entire Titanic on her deck. Unbelievable!!!

  • @peterfinucane8122
    @peterfinucane8122 Před rokem

    Aircraft Carrier? Huh, I'm an Aircraft Carrier Carrier!

  • @irfaalwan3590
    @irfaalwan3590 Před rokem

    can it move when submerge(half obviously)?

  • @pubcollize
    @pubcollize Před rokem

    1:29 "really specialized vessels designed to lift and carry immensely heavy floating objects like oil or eggs and occasionally other ships"

  • @TruckFan542
    @TruckFan542 Před rokem

    I guess this is the ship version of a tow truck 😂

  • @hughrichards4193
    @hughrichards4193 Před rokem +1

    But how do they secure the load?

  • @andreseriliano1761
    @andreseriliano1761 Před rokem +1

    This could have save Titanic, if the technology was invented years prior to its maiden voyage.

  • @bredsheeran2897
    @bredsheeran2897 Před rokem +1

    What do I do if this submersible boat needs to get towed

  • @IamStaked
    @IamStaked Před rokem

    What keep these ships stable? If the bottom part of the ship is very light. Wouldnt that put the center of buoyancy and center of gravity way up?

  • @BUILD.THERE.
    @BUILD.THERE. Před rokem

    Something about how that ship sinks makes me feel UNCOMFORTABLE as all get out.

  • @Harrier42861
    @Harrier42861 Před rokem

    The best-named ships of this type are named the Mighty Servants

  • @Rektek97
    @Rektek97 Před rokem

    And how do these specific ships get transported?

  • @rauldelgado8907
    @rauldelgado8907 Před rokem

    It’s crazy that those kind of ships can lift ships that are almost about to sink

  • @Jared7873
    @Jared7873 Před rokem

    This is how SHIPMAX™ works.

  • @andrewcarlson3486
    @andrewcarlson3486 Před rokem

    Short answer: so they can have the vessel by surface beneath when the blue marlin is in position

  • @stephenbritton9297
    @stephenbritton9297 Před rokem

    Don’t forget the MIGHTY SERVANT II bringing the USS SAMUEL B ROBERTS FFG58 back to the US after her mining.

  • @tomix7866
    @tomix7866 Před rokem

    True.

  • @morkovija
    @morkovija Před rokem

    wish there were pics to show actual events

  • @karstendoerr5378
    @karstendoerr5378 Před rokem

    This idea is not new. The term LASH (Lighter Aboard Ship) refers to a system in which loaded lighters are transported on ocean-going vessels. The carrier ships are called LASH carriers, barge carriers, kangaroo ships, lighter transport ships, or lighter mother ships. The only difference is that they were not used to transport ships, but take on vessels designated as lighters, preherms, barges or barges without their own propulsion in the form of floating standardized cargo containers. At the port of destination, the carrier ship separates from these vessels again. There, they are moved in the port waters, on canals and rivers as inland waterway vessels in pushed convoys. Such vessels first appeared in 1969.

  • @seamuspink9098
    @seamuspink9098 Před rokem +1

    A worthy oponent to the aircraft carrier
    The watercraft carrier

  • @daviddavidson2357
    @daviddavidson2357 Před rokem

    This should have been in a bond movie.

  • @DylRicho
    @DylRicho Před rokem

    It's still fascinating how they can hold 70,000 tons without breaking apart, and that's without considering the physics behind buoyancy.

  • @LostShipMate
    @LostShipMate Před rokem +1

    So its a massive pickup truck?

  • @phroogo...
    @phroogo... Před rokem

    basically the Antonov AN-255 of ships

  • @viniciusfrj
    @viniciusfrj Před rokem

    A ship shipping ship, shipping ship shipping ships

  • @bluefalcontransport6335
    @bluefalcontransport6335 Před rokem +1

    What about a ship that carries a ship carrying a ship that also carries ships

  • @connorgowins3224
    @connorgowins3224 Před rokem

    Well now I have to build one of these in kerbal space program to recover splashed down spacecraft

  • @rubes3927
    @rubes3927 Před 10 měsíci

    Wait wtf I don’t remember this thing coming to Melbourne in 2012 🧐 I must’ve been out of it 😂

  • @dooluv5769
    @dooluv5769 Před rokem

    So, u have a very heavy ship on a ship and yet it floats, but you fill some ballast tanks and it submerge. Isn't a warship heavier than water?

    • @homnin5801
      @homnin5801 Před 9 měsíci

      The warship most likely would of been drained of fuel, ammunitions, supplies, ect so it will be lighter. Also semi submersible ships are ridiculously buoyant.

  • @jackthegreenq6
    @jackthegreenq6 Před rokem

    BIG CARL

  • @wolfiegrav
    @wolfiegrav Před rokem

    I am almost sad that R/P FLIP didn't get an honorable mention in this video.