Everstuck is a nice touch ;)

@masterimbecile

Жыл бұрын

This meme isn’t going anywhere soon is it?

@jonathanschaffer2594

Жыл бұрын

It literally made me laugh out loud

@fluuufffffy1514

Жыл бұрын

Took me far too long to notice that, lol!

@StingrayMM20

Жыл бұрын

@@masterimbecile, oh you! :D So meta, I love it!

@miniena7774

Жыл бұрын

Shut it.

"Why Don't These Containers Fall Off?" As a matter of fact, sometimes they do. I sailed on container ships for many years and, although it never happened on any ship I was on, I have heard of many instances of containers going overboard. The problem is that the container terminals are always in big hurry to finish loading ship and move it out to make room for the next one. The Mate of Watch is supposed to check EVERY ONE of the twist locks prior to sailing. However, since multiple cranes frequently work on a ship simultaneously, sometimes as many as five at once, and the terminal is always in a big hurry for the ship to sail, that is often not possible. Another big problem is the "reefer" (refrigerated) containers. Some ships carry hundreds of those, and the cargoes inside them are perishable and high-value. The Mate on Watch is supposed to ensure that ALL of the reefers are plugged, running properly and maintaining the required temperature prior to sailing. However, again, the terminals are in such a hurry to get the ship away that it is not always possible to do that.

@gianniwu6564

Жыл бұрын

My parents discovered it the hard way when their shipping company lost 1 container during a storm. But then felt much better when some her friends lost half or more of their inventory during the same voyage.

@BenBen-mc5fl

Жыл бұрын

I got told that if the ship rolls to much it is wanted that the Containers on that Side fall off, as like a last ditch effort to get a counter force.

@mekaerwin7187

Жыл бұрын

Yes, we've often heard coast guard reports over the radio of containers overboard as a navigation hazard. Don't know how long they stay afloat, but the coast guard will keep sending out warnings for hours.

@geoffgunn9673

Жыл бұрын

If you have ever shipped using containers you realise that the closer to the center you get the dearer it gets. Cheap on the top corner but if it get there is another question. The week to lose a few every trip

@beeble2003

Жыл бұрын

The proportion of containers that get lost is very small. I can't quite remember whether it's a few thousand or a couple of tens of thousands per year, but as a proportion of the vast number in service, it's tiny.

35+ years ago when I was in my early teens I was walking along the railroad tracks near my home and I found one of the manual twistlocks on the side of the right of way, it must have come off some container passing by but at the time I didn't know what it was. I was mystified by this thing and even took it home to try to figure out what it was, of course this was before you could google things, then one day I saw a train go by and saw one in place holding two containers together and immediately realized the genius simplicity of the thing. I've been fascinated by the humble shipping container ever since.

@LauRoot892

Жыл бұрын

Boyles

@coniccinoc

Жыл бұрын

It seems rare to find someone with a curious mind in real life. Thank you for sharing this story, I think it is both cool and relatable.

@LauRoot892

Жыл бұрын

@@coniccinoc Where ya from ?

@tms174

Жыл бұрын

@@LauRoot892 thanks for asking;) 😂

@AnimeSunglasses

Жыл бұрын

Beautiful. Do you still own it?

The long stick used to lock and unlock the twisters can generally, at least from my experience, only be used at the first 3 stories up, if it's over that like say 4 or 5 the ground crew placing the locks on shore will be lifted up in a cart flying next to the containers and unlock them, which is pretty fun actually as long as you're not scared of heights or the fact that a man in a crane is lifting you high up in a cart that swings and the only thing keeping you from dying is his ability to control the damn thing

@Igbon5

Жыл бұрын

You are right, ,the poles can only be handled up to three high, the rest by a cage trip. I've experience a crash or two but nothing serious. It can be fun and a good view.

@jonaspfister682

Жыл бұрын

@@Igbon5 You shippeople are a bit crazy :D "Well, there *were* a few crashes, but it generally is good fun!"

@Kaine96853

Жыл бұрын

By no means was it easy, but at the port I worked at we had extendable poles that could reach the 5th high row. Took some skill to use and we only used them in certain places on the vessel.

@jukebox_heroperson3994

Жыл бұрын

Reminds me of the telehandler basket my construction company has.

@sgthulk9

Жыл бұрын

Where i come from, we call it:" The Gondola", because the construction that you're standing in, literally has the shape of one. A so-called "crash" as people call it, will be banging against something which isn't nice but as others mentioned here, is not such a big deal other than a serious reprimande to the crane operator😠 But a few years ago, the complete Gondola fell out of the crane and onto the ground, because the extra 4 twistlocks of the manual locking device was set in the unlocked position and the crane operator accidentally released his twistlocks too when the gondola was resting a bit on the ground(when there's pulling-tension between the spreader and the gondola, safetymeasures will ensure you cannot release your twistlocks), injuring one of my collegues. The guy was paralyzed for the rest of his life and was fed through a tube for several weeks. I'm a crane operator for various types of Ship-to-shore cranes myself as well as a coördinator and i can honestly say i'm doing a great job being fast when loading & unloading containers, but when i'm working with people in my spreader, i forget speed and emphasize on safety. More importantly; when the guy in the gondola is conducting his operations, HE calls the shots and i just follow his orders as the crane operator.

I was a stevedore on container ships for about 8 years. The semi automatic twistlock you described is like the ones we used on Maersk vessels, whilst Hamburg vessels had a fully automatic type with no toggles at all. On the section about container bays, bay 01 would be the forward 20', the aft 20' would be bay 03, and the 40' would be bay 02. The walkway between the next bay would be 04 so the next 20' section is an odd number again.

@thespacexplorer6552

Жыл бұрын

that's quite interesting

@alveolate

Жыл бұрын

honestly, the manual and semi-auto locks sound like a huge hassle still, considering how many containers need to be loaded/unloaded at port, and how often you'd lose those damn locks...shouldn't all containers just have built-in locks, which the cranes can toggle when they pick them up, or something?

@s.v.saylaraye3212

Жыл бұрын

As Kaine already mentioned, they make fully automatic twist locks. However, they are not ideal for all situations. For example, if you have a stack of empty flat racks, you would have to discharge/load them one by one with fully auto twist locks but you can accomplish the same in just a single pick with manual or semi-auto twist locks. Also, with fully automatic twistlocks, you can only twin pick horizontally and not vertically. If you have two tiers of remain on board 40' empty containers overstowed over loaded discharge containers, you can halve the number of restow moves by using manual and semiatomatic twist locks. These containers are built to ISO standards so the corner castings can accept an assortment of different twist locks depending on the situation. Even ships with enough fully automatic twist locks aboard for every container usually carry manual and semiautomatic twist locks for situations that warrant it. As far as having built in locks... Very bad idea. Twist locks get beat up every time the container get loaded on a chassis, bomb cart, vessel, ect. It takes all of a second and a half for an experienced longshoreman to change out a busted twist lock. Nobody has time to torch out and reweld a locking mechanism that has no need to be permanently installed.

@kenbrown2808

Жыл бұрын

so, out of curiosity, how does the release function work on fully automatic locks?

@nottsork

Жыл бұрын

the best method from my non seaman experience would be a helix that uses weight to hold down , and when the container received upwards pressure a spring releases it to neutral or a simple helix with a flange in the middle and a bearing allowing the lugs to twist and separate but only in the up and down directions or if you want to be really fancy , have each container with its own lugs and a radio code from the bridge to release so all containers can be locked or unlocked remotely

It's estimated that on the order of 1500 containers are lost at sea every year. While I know that this is a small number compared to the number shipped, it still represents a huge hazard to ships and small craft. A floating container is very difficult to see as most of it is normally submerged. Thanks for your explanation but I wish these numbers were much smaller.

@finsfan90

Жыл бұрын

They float? I assumed theyd sink right down. Imagine driving your million dollar luxury yacht into one 😅.

@MonkeyJedi99

Жыл бұрын

@@finsfan90 Float versus sink is a function of ow dense they are. A container full of bins of scrap steel might sink right away, while a container full of plush teddy bears might readily do that "float just high enough to wreck your day" thing. - I recall some idea about modifying containers to have a vent hole that fails open when submerged, but the problem is designing such a thing to NOT fail open from rain and spray.

@baylinkdashyt

Жыл бұрын

@@MonkeyJedi99 That was my next question, yes. The doors seal tight enough, then, not to admit *submersion* water? Really?

@MonkeyJedi99

Жыл бұрын

@@baylinkdashyt From what I saw in a short documentary, the doors seal enough to keep out weather, and as a result can delay the sinking of the container for a while.

@pierrecurie

Жыл бұрын

@@MonkeyJedi99 Denser containers are likely down in the hull, rather than high up. As a result, I imagine most lost containers to be less dense than avg.

I work in a train yard, We use manual twist locks that are part of the wagon, the container guys usually just walk along the train length dragging a hammer across the lock handles to rotate them to either the locked or unlocked position depending on what they are doing.

@b1laxson

Жыл бұрын

So its Hammer Time!

@samuelhulme8347

Жыл бұрын

Minecraft Immersive Engineering: HAMMHAA!

@danielrose1392

Жыл бұрын

Did not knew train operators use locks on containers. Just saw one wagon close up with only had pins and assumed that would be sufficient for all train operations.

@shadow_wolfen

Жыл бұрын

@@danielrose1392 probably depends on the operator/company, our trains (KiwiRail) can't leave the yard without them being checked.

@tanall5959

Жыл бұрын

@@shadow_wolfen Intermodal trains can have containers stacked a couple high. So they, at the least, would likely have twist locks holding the containers together and down onto the rolling stock to prevent them toppling over on the outside of a bend.

Been working on a container ship for more than a year now. But never imagined understanding of a container lashing in better way than this. Amazing job🙌🏻

If you notice these containers tend to flip over when a truck driver exits an on or off ramp, or takes a corner to fast, the reason is that unlike regular trailers with a heavy floor and light sides and roof, the sea container is solid all the way around making them much easier to flip, top heavy, I drove both for decades, with sea container you have to slow way down on any corner.

@mzaite

Жыл бұрын

I never understood why they don't have "under slung" trailers for Intermodals like you see with double stack train cars. I guess for truck dock compatibility? It would help bring the CG down and improve aero.

@ianspeckmaier9565

Жыл бұрын

@@mzaite Ground clearance

@BrooksMoses

Жыл бұрын

@@mzaite Probably also length; an underslung trailer would need to have the wheels in front of and behind the container, rather than under it. The extra length makes it harder to maneuver, and also may not be within the legal length limits.

@Croz89

Жыл бұрын

@@ianspeckmaier9565 You could imagine the increase in bottoming out incidents on railway crossings.

@mzaite

Жыл бұрын

@@ianspeckmaier9565 How so? I've seen some pretty hefty goose necks that go well below the axle center line.

Actually, I have wondered how they stayed on. The “Everstuck” was amusing. Thanks for sharing this with us.

At 3:16 - I'd say the lock didn't work all that well, considering it got left behind when the container was lifted onto the ship 😀

@colmreynolds9869

Жыл бұрын

That's why they fall off sometimes.

@renerpho

Жыл бұрын

I expected nothing less from a ship of that name.

On the Ever Stuck: Commander: "I bet you can't turn around in the suez canal" 1st Lieutenant: "Hold my beer"

@ENCHANTMEN_

Жыл бұрын

MULTI CANAL DRIFTING

Please never ever stop using the Everstuck ship. It'll be even more hilarious when some people start forgetting the "incident"...

@Wazzup1991

Жыл бұрын

The suez canal incident?

@spindle7397

Жыл бұрын

@@Wazzup1991 yes

@renerpho

Жыл бұрын

You mean the incident*s*. Don't forget Chesapeake Bay.

@juangalton999

Жыл бұрын

I don't get it. 🤔

@melia3240

Жыл бұрын

@@juangalton999 Evergreen Ship stuck on Suez canal

The more I learn about shipping containers, the more I think the inventor of these standardized boxes needs a raise.

@liamsporrer

Жыл бұрын

“The Box” is a great read if you’re looking for the story of how we got from bags and barrels to containers

@rockarola55

Жыл бұрын

He did quite well for himself, being amongst the 400 richest Americans for a while :) en.wikipedia.org/wiki/Malcom_McLean

@rockarola55

Жыл бұрын

@Tin Watchman His employee did quite well for himself as well :) "In the course of his professional career, Tantlinger was granted 79 United States patents, all related to transportation equipment. Many of his patents related to commercial highway freight trailers and transit buses."

That accounts for them being vertically locked together. But a tall stack can topple more easily than just the one at the top. Would you not need to secure each stack to its neighbor also?

@lief3414

Жыл бұрын

dot

@earthwormscrawl

Жыл бұрын

Exactly. Perhaps some kind of sliding engagement that would create horizontal stability.

@christinanull5098

Жыл бұрын

was also curious about this

@AubriGryphon

Жыл бұрын

I was thinking about that. They do use steel lashing rods to brace the stacks diagonally at the ends and provide more stability. You could incorporate side-locks into the containers, but that would complicate the container and make it a much more expensive piece of equipment, which then needs inspection and maintenance. The most stable design would be to periodically add a cross-member with locks on top and bottom, like civil engineers do with geotextiles to stabilize soil. But I suppose big ships are stable enough that it's not a problem unless they get into some seriously heavy weather, which is rare, and adding and removing cross members would significantly slow loading and unloading. So it's ultimately cheaper to just avoid heavy seas as much as possible and deal with the occasional stack collapse as an accident.

@freddym.1489

Жыл бұрын

When I lash the containers, they are lashed diagonally down to the ship= which results in them being vertically and horizontally stable, it's a metal rod that fits into the holes of the corners of the lower containers and fits the role of a ratchet strap, other places may do it differently

MSC ZOE springs to mind here. You also need steel lashing rods to secure the containers to the deck in case of heavy rolling. ZOE didn’t have this and lost her cargo that way. I have to secure the lashings onboard the container feeder I’m doing my internship on almost on a daily basis. Is a good workout!

Another system used on some ships that don’t stack as high are Fully automatic twist locks (FATS). They don’t require any crewmember to lock or unlock them onboard and are spring actuated to so once the container is placed down, the weight of the top container locks it. Once the crane lifts the container for discharge, the vertical release in pressure unlocks the twist lock and it is free to go. They are always attached/locked into the upper container

My TV was in one of those containers. Crazy seeing the scale of the ship and its containers layout. It is still impressive to know my thin TV was shipped and delivered to me from a giant container ship.

I can't help but wonder about the bottom container of a stack on the outermost row as the ship rolls. Is the container really rated to handle ALL that torque or are there extra lashings etc used while at sea then removed before making port? To my mind, if the ship rolls even a little, the stack will topple as the locks are ripped through the container corners

@Operngeist1

Жыл бұрын

there are locks on the uppermost container that lock the stack with the one next to it. They don't look like the ones shown, they're more like clamps that use the the same holes on the container

@scarletlightning565

Жыл бұрын

@@Operngeist1 nice. I figured there must be something. Next question (if you know): do they work for unequal stack heights or do ships just avoid unequal stacks as a matter of doctrine?

@Kaine96853

Жыл бұрын

From memory each twistlock is rated for approx 5 ton. There's also lashing bars for usually the bottom 2-3 tiers of containers that tie to the deck.

@gunterdapenguin5896

Жыл бұрын

The bottom container is locked on permanent locks at the bottom and in between some safety stuff that's almost like a half box at the corners keeping it in place, it's like this for the first 3 rows/containers up by the sea and shore

@phantomsplit3491

Жыл бұрын

This is a very valid concern, and actually happened on the vessel EVER SMART (photos easily found online). There were a combination of natural factors (rough seas), but also human factors exactly like you mentioned. They put too much weight up high, and did not correctly install lashings used to reduce sway. The result was crushing of the corner containers just like you said

I appreciate the EVERSTUCK. So the lever twist locks are generally utilized on the deck, so they can manually control the pitch and angle of the container if the operator has difficulty loading. Semi-auto twist locks come in two primary types: Single stem (pig tail) & dual stem. The longshoremen utilize a locking pole, that resembles a fireman's pole hook or halberd. The single stem in pulled down, and held in place by a fork cast snagging onto a collet that is viced onto the stem in manufacturing. These have a top and bottom. Dual stems have a top and bottom as well, but pulling the left stem will unlock the top and lock to the bottom. Pulling the right unlocks the bottom and locks to the top for ease of extraction. If the stems are aligned with one another, both containers are locked onto one another. Auto locks, are another beast in themselves and too much for this comment. Appreciate the light you've shown on the simplicity and genius of the containerization of cargo.

@LauRoot892

Жыл бұрын

Hmm 🤔

I love how you address questions I have never even asked but really want to know the answer to. Also I almost spit my drink out when I saw the name Everstuck on the side of the ship in the animation.

My grandmother lives in an apartment overlooking Commencement Bay in Tacoma Washington and the Port of Tacoma. I love to watch the huge ships come to port and I’ve always wondered how they keep all those stacks of containers onboard ship like that. Thanks for the explanation! Very fascinating! You’ve got a sub out of me!

I'll probably never be a sailor, but man. This channel is amazing.

Everstuck. Great name for a boat. Why didnt someone think of that

@tamaslapsanszki8744

Жыл бұрын

Well, in some languages and dialects, Everstuck is spelled as Evergiven...

As a train fan, I've always wondered how they stack the containers without them falling on curves. For a while, I thought they were magnetic.

@samiamrg7

Жыл бұрын

That would take a ridiculously strong magnet to hold multi-ton containers together. Probably strong enough to get tools and stuff stuck to it. Maybe even pin a person if they have metal implants or things in their pockets or belt loops.

@vonn1334

Жыл бұрын

@@samiamrg7youre exagerating because of the enormous surface area, it wouldnt require that much current for an eletromagnet also to the first guy the tracks are also designed with precise banks in the tracks that are calibrated for the set speed and weight of the trains that help the loads center of gravity to remain at the 0 position

@ronal8824

Жыл бұрын

I actually got this little model container car doublestack that has little prongs on the top and holes at the bottom where containers can lock to eachother and I wasn't sure before this video if that was how it actually worked

@beeble2003

Жыл бұрын

The main reason you need to secure containers on trains is the back-and-forth movement from "slack action". Basically, there's always a small amount of play in the couplings between cars, which means the cars can move backwards and forwards relative to each other. It's not much per car, but it can really add up over the length of a train. If the couplings are all bunched up, when the train starts, the train doesn't set off smoothly as a single unit. The locomotives move forward slightly before the first coupling tightens up and the first car gets yanked slightly forwards. The locomotive and first car are then moving slightly faster when the second car gets yanked into motion, and slightly faster still when the third car gets yanked. This can really add up over a long train and the last cars can get yanked pretty hard. The same thing applies any time the train accelerates from a position where the couplings were bunched up, and the opposite effect happens when they brake with the couplings stretched out.

@beeble2003

Жыл бұрын

@@vonn1334 Electromagnets are a total non-starter because they're an active system: you have to continuously supply power to keep the system safe. It doesn't matter how much power that is. The simple fact that you're always having to do work to keep the system safe means it's a terrible idea. For a specific example, suppose the train splits in two. This is a real thing that happens from time to time because of either metal fatigue in the couplers or rough driving. When the train splits, both halves automatically make an emergency stop. But the back half of the train is no longer connected to the power supply from the locomotives, so its containers have all unlocked themselves just at the time when they need to be the most secure.

The forward locks on trailers are actually a pin position horizontally and the container is inserted at a slight angle to catch underneath of the pins in the front and then it uses the standard locking in the rear only since once it's past the pin it can't go in any direction except for backwards

Hello, I think the description of manual twistlocks is great and is a good resource I wish I had a couple months ago when I was talking about them! With that said, I do have some comments/corrections on the video: 3:40 Bay 01 is correctly described. That would be a 20 ft container at the front of the hold. But a 20 ft container in the back would be Bay 03. Bay 02 would only be a 40 ft container filling bays 01 and 03. Given the title of video is about cargo securing (and not limited to twistlocks), I also think it is worth mentioning the use of turnbuckles on the first 2 or 3 tiers above maindeck. The twistlocks do nothing to reduce container sway, so the turnbuckles are essential to preventing accidents like what happened on the vessel EVER SMART. I was an engineer, and have limited familiarity on auto-twistlocks. And I wasn't involved in cargo loading/discharging, but I have never seen a container pulled off a ship and put onto a mount/stand by the gantry crane. There is usually a line of trucks, and the container goes straight from ship to truck (or vice versa). I'm not really sure how a ship gets their auto-twistlocks back, but there are usually not crew members standing on the dock collecting them from containers.

@Kaine96853

Жыл бұрын

Each vessel has a few specially designed 20' containers with bins that contain the twistlocks. These are taken off at the beginning of operations so stevedores can put all the twistlocks in the bins, and they are reloaded at the end. Likewise I haven't seen a frame that the containers are placed into once discharged, but at the port I worked at we loaded out of frames as containers were delivered to the ship by reachstackers.

@phantomsplit3491

Жыл бұрын

@@Kaine96853 Thanks for the info! I was actually about to ask in a reply to your other knowledgeable comment, but you read my mind!

@takiman1

Жыл бұрын

Yes they do. In many ports, during discharge, the the crane land containers on stands to let the stevedores remove the twistlocks. And during loading the straddle carriers or reach stackers (trucks) land the containers on to the same stand to let the stevedores/ longshoremen attach the correct twistlocks onto containers before the crane picks it up to load it onto the vessel. Not all ports have the containers loaded directly to trucks.

@oscarJon

Жыл бұрын

Rarely are containers loaded onto trucks directly. (At least in the EU) They go into a container stack where they wait for pick up by a road truck/train/ship. Twistlocks are collected by dockworkers and put into holding bins which are loaded back onto a frame and loaded back onto the ship. (They are open frames which use the same mechanics as containers.)

That was high-value content for me- I never really needed to know, but have always wondered how this worked. Every image of a container ship makes me want to wait and watch for it to dump its cargo in a light breeze. Good to know for sure that it would take more than that.

Those cargo ships are MASSIVE. Honestly, you could use it as a runway for small planes, if the deck was flat.

@arthemis1039

Жыл бұрын

Man, we should think about making ships with runways for planes, you might actually be holding onto something !

@wurfyy

Жыл бұрын

@@arthemis1039 Yeah, in particular I think militaries could really benefit from this. They could use it to give air support to troops anywhere that's close to sea. I think we could maybe even get by with slightly smaller ships if they put hooks on the aircraft and long cables across the deck. That whole space under the deck could be used for storing more aircraft. Just put a large elevator on the side to get them onto the deck for takeoff. Honestly this guy's a genius. He could make billions off of this idea.

@user-vp9lc9up6v

Жыл бұрын

The US already has smaller "aircraft carriers" for the Marines that operate Harriers and F35Bs. The British actually landed a Harrier on a container ship during an emergency however I think parts of the containers collapsed under the weight of the plane

@robertlevine2152

Жыл бұрын

I believe the US Navy has designs for a "top deck" thst would allow vertical take-off and landing (VTOL) to be carried. I believe the British made use of a similar conference during the Falklands war. Storing aircraft brlow the main deck would be problematic. Besides the need for an even layer for containers you would have to deal with the cell guides in the cargo holds. Assuming you solve that issue, ventilation would become the next problem. After that you would need to deal with fuel. Aircraft use kerosene type fuels, whereas ships use anything from heavy fuel oil to marine diesel oil. Containerships have limited space for fuel and ballast.

@wurfyy

Жыл бұрын

​@@robertlevine2152 Sounds like the joke went right past you.

"Next time you see a container ship..." Me, living in a landlocked country: 😔

I’m a truck driver and I’ve done some container hauling in the past. The frame chassis that the containers are loaded into have built in manual twist locks on the back corners and manual peg front locks on the front corners.

This is the best! Detail, Simple, and best of all! Compact!

Ah, the return of the Everstuck, haha! And yet another video on something in logistics that I never thought about before 👍

You forgot the lashing rods I think. Also there are many circumstances in which container ships loose containers

@Captain_Flippers

Жыл бұрын

MSC ZOE springs to mind here. Container ships are required to also put steel lashing rods to secure the containers to the deck. This is done in case of heavy rolling

I love the name of the ship, Ever Stuck. A nice jibe at Ever Given, which got stuck in the Suez Canal.

I live near a major shipping ports, with various cargo ships lined along the coast. While containers falling off is rare, they do occur. And often makes a huge mess along the shoreline.

For you new junior mates out there, always be mindful of the bins of twistlocks collected on shore during cargo ops and be sure to get them back on board before the cranes are secured. Even the manual locks aren't cheap and the gear is easily sold off on the cheap to unscrupulous ships coming in after you. Anyone remember the little side gig some Felixstowe longshoremen had going on in the 90s?

Thanks for explaining how to vertically connect containers together. Is there a standard for connecting containers horizontally?

@beeble2003

Жыл бұрын

Yes. Some of the other comments say that they also install locks (of a different design) between the top containers on each stack so the stacks are held to each other.

Another great video and explanation! As Kaine has already explained elsewhere, the bay counting system is slightly different from what your video says. And it’s usually (but not always) stevedores who are responsible for the placement and locking of twist locks, as well as for lashing the container stacks. Crew members normally do a check before the ship leaves port, and daily on the voyage to the next port.

You are answering the ship questions I always had.

I‘m a little bit confused about the vertical numbering. Odd and even numbering is used for everything else. But the vertical numbering just has even numbers below and on deck? Seems rather confusing.

@s.v.saylaraye3212

Жыл бұрын

Odd numbering is used for tiers when loading half cubes. However, these are so rare that it didn't warrant mentioning. Even/odd numbering is used for bays to denote 20' (odd) bays & 40' (even) bays. Even/odd numbering is used for rows to denote port (even) and starboard (odd)

@ColonelVermel

Жыл бұрын

@@s.v.saylaraye3212 I watched the video but thank you for your summary. It’s still unclear for me how to differentiate between two containers with the same number because there will always be one with a vertical 02 below and on deck (according to the vid).

@s.v.saylaraye3212

Жыл бұрын

You never use the same number twice except in specific situations like empty flat racks stacked with their ends down occupying the same slot. In the holds, the tier numbering starts at 02 near the keel and increase as you get closer to the hatch cover. The containers that are loaded on top of the hatch cover or deck start at 80 regardless of the number of tiers below the hatch cover. So any tier >79 is on deck and any tier

@ColonelVermel

Жыл бұрын

@@s.v.saylaraye3212 Now it makes sense.. so I rewatched the vid and now I hear the 80 as the limit between below and on deck. So thanks for clearing that up. Was driving me nuts.

Video idea: How do shipping companies (either those who produce or manage the ships) know how many crew are needed to run the ship?

@loutrioti8375

Жыл бұрын

Specific crew billets and numbers are first determined by law, and then stipulated by contract (for union crewed ships). If shipping companies where allowed to set crew amounts, they would almost always go with the minimum required allotment because of $$.

@beeble2003

Жыл бұрын

The same way that _any_ business knows how many workers are required to do whatever work.

@axelloa.a.6563

Жыл бұрын

@@loutrioti8375 ah okay, thanks

Thank you for answering something I had always wondered!

Back in the day i always thought that they had some kinda sticky bottom on there or their humping speed was high.. thank you casual navigator!!!!

Smart, yet it seems there is room for human error since a person must place the locks before stowing the container. Does it happen often? What measures are in place to avoid missing one?

@Igbon5

Жыл бұрын

Where I worked there was a foreman watching each container go on and they check the twist locks and the validity of the number and help the crane driver locate the box if its in a tricky spot. The twist locks are put in under the crane by what we called pin men, 2 for each crane, one for each end of the box. The foreman directs them too.

Are the horizontal facing holes use to lock adjacent columns of containers together? Why are containers only ever placed directly on top of each other rather than staggered as you would with bricks when making a wall?

@Kaine96853

Жыл бұрын

There used to be bridge clamps that were put in the side holes at the top of each stack to pull them together but they haven't been used for a while. There are steel lashing bars that tie containers to the deck that fit into these holes, but they can only reach the 3rd container up depending on the type.

@syriuszb8611

Жыл бұрын

Because then you would have to have certain width of the deck (multiply of length of the container, and they are quite long, so it is quite restrictive, especially for small ships). And maybe more importantly you would need to have the locking points along the length of the container, to lock with all containers on top. This would add to container cost, and with their number, cost adds fast. And remember that they are used on trains and trucks too, and they wouldn't use this feature at all. In the end, the current system is good enough, so why bother with more complex and expensive solutions.

@Graham_Rule

Жыл бұрын

@@syriuszb8611 I was wondering why the current system is good enough. A few parallel columns of bricks built with no overlap is a lot easier to knock over than a wall where they do overlap. I guess that ships can't roll enough to cause an edge column to just topple.

@Graham_Rule

Жыл бұрын

@@Kaine96853 Thanks.

@Jacob-zo5fv

Жыл бұрын

The thing about containers is they are very weak except the edges designed for load bearing. So to do staggered containers you would need a lot more structural elements, which means heavier containers, which means less cargo. And since they will have horizontal locking, the chance of containers rolling horizontally is relatively low

I feel like your animations are getting better and better. Really nice work. :)

Bro. I love your channel. Keep up the great work! I’ve learned so much that I didn’t even know I wanted to know. Thank you!

3:56 Are there container ships that have a row of containers in the centre? What happens then?

@geoffmcclelland2663

Жыл бұрын

Call it 0 maybe

@phantomsplit3491

Жыл бұрын

@@geoffmcclelland2663 This is correct.

Another great video! I love the 'Everstuck'. Question: a while ago, north of the Netherlands in strong winds a container ship lost many containers. Was this a case of misuse or misfunction? Best!

I have always wondered how this works. Thank you for sharing this!

This was such an interesting video. It actually makes me think of a ways I may incorporate these ideas in my own projects.

They do fall off.. "The World Shipping Council (WSC) reported that an average of 1,382 containers were lost at sea between 2018 and 2019."

@gobarn1877

Жыл бұрын

That's remarkably low considering estimates are that there are 200 million container trips per year by sea

@Dayvit78

Жыл бұрын

@@gobarn1877 Facts :)

I love it. "Everstuck". Nice touch.

On the trucks and trains we have locks that we press up through the wholes of the containers, and then screw it tight down, so when we back under a container, precision is the king and queen of the game :D Depending on the length I either use 4 or 8 locks on the container.

@LauRoot892

Жыл бұрын

Hmm 🤔

Having worked as a stevedore for 14 months with a focus on container ships, the container "corner locks", or "pins" (as we called them) were always handled by the people on the wharf either after the container has just been unloaded off the ship onto the easy-loader, or just before it was loaded onto the ship. We've only ever used the cast single-piece "German lashing" corner locks (or pins) on the containers above the deck, which are designed to allow the container to be lifted directly vertically (as the crane would), but not allow it to disengage if there are any lateral forces on it (tbh I'm not even sure how it works), so there was never any locking or unlocking done by ourselves or crew involved (apart from lashings). Never used any kind of dynamic locks (what you call manual or semiautomatic twistlocks), though I have seen them around; we just never used them. We did use lashings of course (which was done by stevedores), but once the containers were above certain height it would be simply impractical for us to use a man-cage to be carting crew/stevedores around to be locking/unlocking pins if we wanted to meet the schedule, so we relied on the passive locks (pins). Edit: Also, in regards to the 6-digit code, the container ships I've dealt with had three numbers for a single bay - for example, bay 1-3 would signify that numbers ether 1 or 3 would mean 20-foot, whereas number 2 would mean 40-foot; or for bay 13-15, numbers 13 or 15 would mean 20-foot, but 14 would mean 40-foot. You described it correctly, but the example was a bit off. Anyway, appreciate all your videos, been watching and learning from them for a while.

Strange as it may seem, but I’ve always wondered why containers don’t slide off each other, now I know. Love your channel!

@coniccinoc

Жыл бұрын

I enjoyed the video and was slightly disappointed in myself for not wondering how they were held in place. I need to question more : )

Everstuck... now that's a great Easter egg! Well done man!

03:16 oh nooo, the lock was left behind lol. just having some fun here, great video, keep them comming and I'll keep watching 🙃

Please make longer videos about things I never knew I wanted to know. Your voice is very soothing. Love your vids. 👍🏻

I didn't know I wanted to know about this until today. Lovely job.

This is one of those things I've wondered about from time to time and then forgot about before getting around to looking up

I always wondered why they didn’t fall off. Thanks for enlightening me.

Along with cones, Lashing the cans down usually hold them together. Twist locks are put on by swingmen on the dock. Auto cones are my favorite. No lock-ups when we’re discharging new vessels

i was literally wondering about this yesterday, thank u for making a video!

You forgot about the lashing rods, adding another level of security to the bottom layers on deck. Also not to forget so called hooks and cones for securing containers agains the guides. Then the placement of containers according to weight, heaviest at the bottom/ middle and lighter to the top/ sides. All of this helps the cans from coming of in heavy seas. Communications between the stevedores/ tallyman/ crane operator on unevenly loaded containers is a pretty important thing as well.

Often wondered how it was done. thanks for educating me. 60 tomorrow and still learning.

Again a very detailed and informative video. Thank you for that! Just for the completion of the picture: the landside part of the transportchain uses mostly specialised semitrailers or rail cars, usually equiped with attached but moveable locks which can be adjusted to different containerlenghts or those which are fixed in different standard positions and can be lifted or retract/turned when or where needed. Those locks are normally operated manually by pulling a simple lever or small handwheel. As they can be reached easily by drivers or loading personnel, there is seldom (if ever) automation for the lockingfunction involved. If I may give some buzzwords for possible future videos about container shipping: stowage planning, dangerous goods positioning, containertypes. ;-) Please keep on with your good work!

Always been curious about locking mechanisms. Thanks!

This vid quite politely explained a doubt I didn't even know I had

This channel is so cool everything is well put together and informative

Great content man. Always wondered about this

I love the everstuck name on the ship at the beginning!

Longshoreman here from Los Angeles. Good video. Don't forget about lashing. 20 foot long bars.

You talked about internal lashing but there is also external lashing where bars are placed into the pockets and then crossed to the opposite side and tightened down with a turnbuckle! Those have to be manually delashed and relashed when a ship arrives and before it leaves

Always love the little Easter eggs hidden throughout your channel

'Everstuck' is priceless. Well played. 😎

Thanks for another informative video and I just LOVE the name of your example ship 😁

Hahaha, the fact that I saw that exact type of Ever(stuck)green at Hamburg a while ago and wondered the exact question.

to haul the containers on trucks, the trailers have the twist locks welded arms off the chassis rails at key positions to haul: 1x 40ft / 45ft or 1x 20ft central mounted or 1x 20ft rear mounted or 2x 20ft containers and in some cases 1x 30ft container

Cool video The containers are also lashed together to keep them in place

The comments for this video are top shelf. Excellent video and you have pretty cool subscribers.

Used to work in a FedEx ground yard, we occasionally got shipping containers in. Their trailers had manuall locks on them. But it was not un common to see one or more of the locks no engaged. Even saw some on occasion where none of the locks were engaged.

Oh, I've wondered about this in the past. Interesting !

My science teacher in 6th once told us on Container ships: "Container ships do lose containers. But why don't they strap them?" I don't remember this part of what he said, "So they added more containers because if 1 falls, you still have more on board and make profit." Then we get to talk about rubber ducks and how scientists discovered wind circulation

Great video as always!

Loved the "Everstuck" on the Evergreen Expy

@LauRoot892

Жыл бұрын

Joe

I can't be the only person who started laughing uncontrollably when I clocked the name of the ship. Well played!! 😂🤣😂

Chassies have manual locks built in. The nose is a sliding long bar from the front and the rear is ovals from underneath. They are immobilized with zipties.

I had wondered this for years. And until last week i was working at a port doing padding and lashing. Good old McGregor conlocks

Thanks i was thinking about this

The twist locks you described are in use on trains regularly around the world but idk about ships

Amazing animation and story!

"Everstuck" 😂😂😂 That's hilarious!

I've always wondered how in the world the containers stay on the ship's deck throughout the trip. Thanks for the info---and I like the very appropriate name of the 'ship' in the video 😂!

@FerroequinologistofColorado

Жыл бұрын

There are twist locks on the deck as well as lashing rods are used to keep the containers from rocking side to side as the ship rolls in the sea. Here’s a video explaining that somewhat: kzread.info/dash/bejne/dq2t265wo7Wog7A.html

Lol that name "EVERSTUCK'🤣🤣🤣🤣🤣🤣🤣

What a great informative video

Great video, thanks!

@rayoflight62

Жыл бұрын

I loved the subtle irony in the name of the ship, "Everstuck"...

Wadden sea has a couple of day a year where the locals don't sail. But one non local container ship did sail on one of those days. Shallow enough to hit bottom when the ship rolled side to side, waves battering against stacked container and oh there they went overboard. Container latched are not designed for wave impacts.

Underrated channel