This Ship Has a Big ... Nose?
ฝัง
- เผยแพร่เมื่อ 9 ก.ค. 2024
- This video is part of a sponsored series with Princess Cruises.
How can a ship move most efficiently through the water? There is a LOT of engineering that goes into reducing drag and wake while generating significant thrust. Sun Princess' chief engineer Gaetano Guida takes Adam Savage through Princess Cruises' latest BIG build when it comes to the ship's movement through water.
You can sail on the Sun Princess in 2024! Visit: www.princess.com/ships-and-ex...
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Intro bumper by Abe Dieckman
Thanks for watching! - วิทยาศาสตร์และเทคโนโลยี
You can sail on the Sun Princess in 2024! Visit: www.princess.com/ships-and-experience/ships/su-sun-princess/
This Object Is the First of Its Kind: th-cam.com/video/M8dFvQ1XChE/w-d-xo.html
The difference between "ship" and "boat": th-cam.com/video/61k3n_YDygk/w-d-xo.html
This video is part of a sponsored series with Princess Cruises.
This is a pretty sad sellout. I am disappointed in your attempt at green-washing.
Not gonna lie, this sucks. I understand that the engineering aspect can potentially be interesting, but man. These things are the exact opposite of what the planet needs at the moment. And it's not like you guys don't know that, that's the part that saddens me.
Enjoying this video series, would love to see more detail on how the Sun Princess's hull was designed. I am assuming a great deal of CAD design and computer model testing. Was wondering if actual scale hull models were build and tested in wet tanks as well?
Content not really expected from Adam, we can go without cruise ships ..
@@karel_de_lille Not gonna deny, I liked the video, the engineering and technical aspect of it. It all seemed a bit fishy to me, when the chief engineer said that the most important aspect of reducing the drag of the ship, is that it becomes more environmentally friendly, by reducing fuel consumption. Almost had me laugh there. I bet that's why they built such a ship, because they care so much about the well being of the planet. Then, I pursued to read the description and it all became clear. Hypocrisy at it's finest.
Gaetano is fantastic, his ability to explain these incredibly complex mechanisms in simple terms is outstanding. It's also great to see him get excited at Adam for asking very relevant questions about the functionality of the ship.
AND doing it in a foreign language, 2nd or even 3rd, for him. Makes it even more impressive.
I love that Adam probably know all these things, but he still asks these question for sake of us.
That engineer seems like they would be so fun to hang out and chat with. I could sit and listen to him talk about nautical engineering all day.
Axactli ! ;-)
I know quite a bit about large ship tech - but seeing the azipod propellers being turned by WIND is just mindblowing! This gives you an idea how insanely efficient the bearings are... 😲
you could blow on it hard enough and it would start moving!
I can't imagine being the project manager on something like this. Lots of moving pieces. Just having that mammoth ship sit on dry ground on small plies of wood and not break under it's weight seems like an engineering marvel.
Wood is nature's premier building material! It's tougher than we often give it credit for. Also, as large and heavy as that ship is, the vast majority of it is empty cargo, ballast, fuel, and water tanks and such. Also, those are reinforced concrete blocks with essentially plywood on top to kind of cushion and spread the load and keep the hull from being gouged and the paint being ruined. The paint is a complex and necessary system all on its own, not just for looks, not to mention very expensive. He mentioned the anodes for corrosion, which is another part of the paint and protection system. The paint is specifically formulated to discourage marine growth and to be difficult for things to attach to the hull without being actively harmful to plants and animals in and around the water. Barnacles and such can cause major problems with maneuverability and efficiency by fouling the ships ability to cut through the water and use its thrusters to send water across the steering planes, if present(rudders), or for the thrusters to rotate and activate quickly and effectively, if that's the propulsion system equipped. Margins in shipping are thin as onion skin, so sucking down extra fuel or slowing the ship to where it causes delays and missed load or unload appointments can easily add up to millions of dollars lost just in the short term, not to mention the loss of future business, or even worse, a long stretch of downtime for refurbish and refit and so on. Sorry for the lecture, you sure didn't ask for it(or anything else for that matter😂), but it's easy to get carried away... Being a follower of Mr Savage, I've no doubt you understand.
@philbert006 Especially the compressibility of wood is staggering!
It squishes just right.
Wood is a preferred material because it’s compliant, lightweight, easy to work with and you can usually hear it failing (cracking) and it fail slowly rather than suddenly buckling like steel. That’s why if you ever watch search and rescue they never use metal.
I like the Chief Engineer explaining everything to Adam at a 5 year old level of understanding. Mildly comical to me, but it inadvertently makes the video accessible to anyone.
I think the accessibility is intentional, not inadvertent. Adam and most of his audience have a fairly shallow non engineering understanding of technical subjects. I wonder how many viewers shouted "ailerons" in their heads at the explanation of how the stabilizers pitch in opposite directions on either side of the ship to counteract the rolling of the ship. I suspect it didn't even occur to Adam, else he would have blurted out "like ailerons on a airplane" at that moment.
Probably learned to explain things that way from having to explain things to the 5 year old education level of corporate executives.
Most masterful or subject matter experts can and have to be able to put things in near baby language think of a Drill Sergeant or Rocket scientist if they cant explain right people will get blown up and die.
I think it's also because English is not his native language so he tries to use the easiest words in English.
@@NecramoniumVideo its mostly this
Adam's childlike wonder never gets old. He is constantly learning, and to have a guide like Gaetano Guida is a gift!
One of the most understated marvels if this video was that prop rotating in the wind. The friction in its mounting has to be incredibly low and the balance insanely precise. Obviously that is needed for both efficiency and to not vibrate the ship apart. But i would be interested in seeing the tools/processes used to precision balance such a massive object.
I would be interested in knowing the actual weight of that rotating mass. The propeller itself but also the shaft and the motor armature and even the inner bearing races, and bearing balls (or likely rollers) themselves ... all that mass being so gracefully moved by a little wind that wasn't even enough to ruffle their jackets!!
Same that’s amazing
It looks like there are basically giant screws that go along the outside of the propeller and they tighten them to move the screw’s weight towards or away from the center mass in order to balance the propeller.
@@WARnTEA Those screws retain the blades to the central hub.
@@DieCastoms If you look in the background one of the workers pants show how windy it really was. I think they were filming in a strategic place for the video/audio. That being said it moving at all shocked me!
"I'm just letting that sink into my head." - Adam Savage underneath a giant boat
I don't think I will ever understand the attraction to being on a ship with 6,000 people but there is no denying they are awe inspiring machines.
it’s cheaper and faster to see a bunch of different places in one trip than taking multiple planes and booking multiple hotels
Stuff of nightmares, would feel like a prison for me.
@@geoff4383 I'm not sure you realize just how many different stages/venues/entertainment centers there are on a ship like this. You could probably visit 3 a night for a week and not get to most of them.
From what everyone says, you basically never see more than 100 other passengers at any one time other than loading times and drills. It is all designed to make spaces/events/meals feel more intimate and less crowded, despite being packed to the limit with passengers and staff. A century of experience with theme parks, ships, etc have taught us many tricks on moving and holding people comfortably and cheaply.
I think the appeal depends a lot on what you see as ideal for a vacation. With a cruise, you get to experience a lot of variety (food, shows, locations) & most things get taken care of for you. If you like camping, well a cruise is near enough the exact opposite as I can think of. Or if you're keen on visiting museums or other 'see it here & here only' type things, they might not be the best.
But if you just want a week without worrying about anything, they're pretty good.
For a sense of scale, that cruise ship is longer, wider, _and_ heavier than a nuclear aircraft carrier. It has a shallower draft, though, as a carrier typically draws about 40 feet with no planes.
The largest container carriers, when fully loaded can have a draft up to 22 meters, or ~70 feet.
Unless you are referring to the Charles de Gaulle, a lot of that isn't correct. Yes, it is longer than a US nuclear carrier. Debatable on width (this ship is a little wider at the waterline, but a carrier is much wider up top). But it is most definitely not heavier. Gross tonnage is an indicator of volume, not weight. Its useful for comparing the sizes of various cruise ships but it can't be compared to displacement. This ship will be a good deal lighter than a Nimitz or Ford class carrier. You can tell this without even knowing what the displacement of the cruise ship is. Compare the waterline area to the depth of the draft. Given that they are fairly close in length and width, but the aircraft carrier sits about 50% deeper it is going to be much heavier.
That is absolutely incredible, thank you for sharing!
What a wonderful, literally, episode of Tested! The idea of the propellors pulling through the water instead of pushing is amazing. I never would have guessed. All of the technology, all of the planning, all of the execution in just about one year is simply fantastic. Thanks, Adam, for bringing us along.
I hate the idea of going on a cruise, but this was awesome to watch. Amazing engineering.
One episode of Build It Bigger (Season 1 episode 4 "Super Fast Warship") examined the construction of a navy destroyer.
Smaller ship, yes, but a lot of the same challenges with cutting, bending, welding, aligning and fitting, and assembling a large machine.
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Modern shipbuilding is a massive effort of huge numbers of people all the way from the first specifications being written down, to the architects, the sourcing of materials and the securing of a building place, to the steel workers, the welders, the fitters, the plumbers, electricians, and dozens of other job specialties.
Amazing stuff.
I do like how they paint all the efficiency improvements as "reducing emissions", and not the real goal "reducing fuel expenses" aka maximizing profit. If your goal was to "reduce emissions" just don't build a floating city in the first place, and you'd have zero emissions.
@@gorak9000Nt to mention that (at least until very recently) large ships generally burn bunker oil-the worst of the worst. Some _half a million_ preventable deaths annually can be attributed to the pollution related to the shipping industry and pollution from burning bunker oil.
@@silverXnoise That's a good point - it's funny how I feel like I haven't heard the term "bunker oil" now in 25 or 30 years, but I seem to remember hearing it on the news when I was a kid fairly regularly. Let's just hush hush that one up - it's bad PR for the shipping companies / cruise companies / oil companies
The main priority of cruise lines isn't safety or reducing emisions, but reducing fuel usage and maximizing the amount of passengers. Many cruise ships have a very high center of gravity due to the large amount of passenger cabins added on top of the hull, increasing the danger of such ships listing, which can be especially dangerous during high winds as the hull and superstructure act like a sail, and during evacuations, as it makes navigating ships as well as accessing and using lifeboats much more difficult, as demonstrated by the sinking of the Costa Concordia.
This was one of the best videos I've seen in a while about engineering. That 28000 hp 360 degrees spinning propellor (?) blew my mind. What a piece of art and it almost looks like something out of a futuristic story or something. Great explanation as well. More of these please!
They're Azipods, originally developed in Finland back in late 1980s. I'm surprised how often people are surprised by them...
Quite conveniently Mr. Guida is avoiding to tell details of its origins; Royal Caribbean Icon class ships are being built at Meyer Turku shipyard in Finland.
@@foobar1500he also avoided the term 'tractor' when referring to them, which is what they are since they're pulling - tractor azipods. If you ever want to see what these concepts do in action, check out the live cam for port of Miami on a Sunday between 4 and 6 Eastern time. The camera is positioned near the turning basin, you'll see at least one cruise ship spin on its axis so it can sail forward out of the channel. Sometimes they dock facing West and need to turn in the evening when they depart, sometimes they turn around when they arrive in the morning so they can just sail out in the evening.
@@presidenteden6498 He was quite interested to do so with other features. Given he actually used the trademark name Azipod it is curious that the devices become somewhat... ahistoric in his explanation.
@@foobar1500 he never mentioned anything about the manufacturer of the air injectors or thrusters until adam asked, though? and adam didn't ask about who made the azipodal propellers (since he probably assumed it was made at the yard), so guida didn't see a need in explaining it
Watching this brings back memories of the old school Discovery Channel. Just basic honest interest. No drama or storylines. Can’t wait for the next part!❤
Adam, you were like a kid in a candy shop, with your eyes so wide. You answered several questions I had in my mind after cruising on several ships. Great episode! This presentation made most of the Myth Busters episodes look like classroom projects next to universe sized experiments! This is a leap from your “Duct Tape Boat”!
If you have more questions about large ships in general (oil tankers, container ships, cruise ships, etc), Casual Navigation here on TH-cam has some great content talking about specific things. He is a sailor who make videos about the maritime industry.
😮 wow.. unbelievable the amount of different designs involved in this big ship.. awesome and thank you
So this was awesome! This ship is a culmination of international maritime technology development over a hundred years (or so). If you ever make your way into Finland, you can check the first prototype of the Azipod thruster at Forum Marinum maritime museum in Turku (Åbo). In Helsinki you can check out the Arctech Helsinki shipyard (Hietalahti), where the air bubling system was first developed for ships. It was initially used for icebreakers but has since been developed for this, rather more meaningful use to increase efficiency. The construction method shown here (prefab segments) is another story on to itself. Early innovations were made during the World Wars in the US, but from the 1950s onwards shipbuilding has moved in strides to become more cost effective. These cruisers are among the last ship types to be constructed in Europe (Italy, France, Spain, Germany, Finland) due to cost of labor. Tankers and containerships are easier to build and benefit more from cheaper labor costs. A single ship like this has an insane amount of systems from a wide array of sub-manufacturers the shipyard uses. There are companies just for building theatres and other big areas. Some companies specialise on just building cabins as prefab boxes etc.. Can't wait to see more from this series!
So it pulls itself through the sea….now that’s awesome.
Hi Adam! First off, I wanted to let you know we spoke on Sun 7/2 when I was completing your check-in (embarkation) for the Discovery Princess. I was the one wearing the tiara for fun, haha. I was in the zone (i love it there), I didn't realize who you were. I walked off to get your Medallions asking myself why your name sounded familiar 😅. I realized after I got home. My compliments to you, sir! You, your wife, and your friend were the kindest, most polite people I assisted that day. It really put some positive vibes in the rest of my afternoon. If you ever want to interview someone to pick their brains about cruise ship terminals or about what its like to be a shoreside port agent, I would be happy to help out. I've done a bit of everything in the cruise ship industry, and I love my job. Take care!
even as someone who knows nothing about cruise ships, this intro has me giddy. as a person and content creator, you have an unparalleled way of making anything seem like the coolest thing in the world. i feel lucky to have access to your content, especially free on yt. sincerely, thank you for everything you do, and re-igniting my passion for engineering on multiple occasions
As a Ship Fitter myself I really enjoyed this episode(as always)! And did Adam take his own hard hat all the way to Italy! 😆👍
If you trust your noggin to a specific hard-hat, and you _know_ beyond the shadow of a doubt you're going to a hard-hat zone, are you just gonna grab whatever they have on hand, or you bring your own?
"Eh how interesting could it be?" ... mind blown in the first two minutes talking about counter-waves.
This air lubrication is an astonishing idea!
Adam: Hello, I am Adam Savage
Chief engineer: Exactly
I worked as a commercial diver for a few years. I swam surveys on a ton of cruise ships. I really kinda miss it. It was cool swimming around in the thruster tunnels and inside the stabilizer pockets.
Watching these two talk through everything brought such a smile to my face. The level of knowledge and mutual respect is incredible.
Can’t say thanks enough. Great close-up look at some amazing engineering. (And we could listen to Gaetano talk-a all day long. 😁)
Your guide was very well-educated. He not only understands his naval architecture but is very good at explaining it.
The air bubbler system has been around for a long time. I first saw them in 1973 on US Navy ships. They were being used to mask machinery noise. At the time any reduction in hull resistance was an added benefit.
The propeller blades are a nickel-aluminum-bronze alloy. It is a great material but is very hard to repair. I am surprised that they haven't gone to a corrosion-resistant stainless steel alloy. Stainless steel can be polished to a mirror finish, and will retain the polish for a longer period of time.
I think steel has its own issues because stainless can still be affected by the galvanic process and cavitation chews through it very rapidly, and chemicals in seawater can penetrate and affect the steel on a molecular level. Heavier bronze alloy's are more resistant to galvanic effects, chemical bonding, and cavitation damage. So yes, heavier, less efficient and more expensive at the start, but they retain that efficiency for a much longer curve, get replaced less often, and that in turn keeps the other systems from being damaged and needing replacement (Due to vibrations and such) which helps with cost.
@littlekong7685 We had two 188,500 DWT tankers each with a fixed-pitch NiAl-Bronze propeller. Both ships were fitted with ducts to "improve" performance. The first ship had extensive cavitation damage to both sides of the blade. The damage was extensive enough to require model testing to design a new propeller. The damage was determined to be so bad that the propeller could only serve as a spare
The testing showed the original stern design without the duct produced a terrible wake pattern. The duct did not improve the flow to the propeller instead what was a bad wake pattern became a fast bad wake pattern. A new propeller was designed and manufactured knowing the wake was a problem. Before a propeller was made for the second ship cracks were found in the duct structure. The ultimate solution was to remove both ducts. As it turned out the new propeller performed well. The second propeller was repairable and did not require replacement.
Stainless steel propellers are used commonly for icebreaker propellers. If you look at the Classification Societies' rules you will find alloys for Stainless steel propellers. Impressed current cathodic protection and sacrificial anodes can be used to protect the propeller.
I found throughout my career that the best solution for hull and propeller efficiency is extensive model testing. It is obvious when you look at the bulb, hull, and propeller that the naval architects spent considerable, and money, on design and model testing.
Engineering jargon in an Italian accent is my new favorite thing
On a cruise earlier this year, me and my wife attended a talk by the captain who was formerly an engineer. He is Dutch and had an absolute passion for the engineering - between the accent and the enthusiasm, it was captivating. He spoke at length on the azipods[sic?], and how it is his only hard line when being allocated to a new ship (the ship must have them) 😀
I'm always surprised by the fact how little of a huge ship like that, is below the waterline. Only 8 meters is below it, but 50 is above it.
As ships go, the cruise ship superstructure, fittings, and contents don’t weigh much. For the most part, a cruise ship is empty and filled with air. So you can build very high for not much draft. As opposed to a ultra large container ship with a 399 meter hull would have a draft almost twice as deep. Now, these are cruise ships, not ocean liners. The Queen Mary 2 is the only modern ocean liner. She is designed to go 20 knots through the North Atlantic winter sea. A cruise ship would want no part of such a sea. But for good weather sailing, you can’t beat the modern cruise ship designs.
There is a reason the cruise industry designs to such a shallow draft. It allows these ships to dock right up inside the most popular cruise ship ports, and navigate channels along the way. Meanwhile, the aircraft carriers anchor offshore and tender their crew ashore on smaller craft, in ports such as St. Thomas (where I've seen it firsthand). I lived aboard cruise ships for 4 years (right around the time Azipods were being introduced). One common nightmare among new crew, is that the ship is tipping over. Beyond 20 degrees of list, things start tipping over, emptying shelves, etc., and the likelihood of injuries is high. Before reaching 60 degrees (90 being laying on her side), the bridge has to aggressively turn, to counter the forces (wind, a sharp turning maneuver) trying to tip it, and right the ship, before it would go over on its side.
I really enjoy the questions you ask! Great video!
To Gaetano Guida -- bravissimo! Not only a brilliant engineer, but a friendly and supremely clear-minded teacher. The first vid was more of an advert for Princess, but Gaetano Guida made this vid into a fascinating overview of some pretty spectacular marine tech. Bravissimo!
Gaetano is amazing! So good with English and especially technical terms. What an honor. Thanks G!! (& Adam)
Adam is one of the best interviewers/host of all time. His enthusiasm and curiosity gives the audience an unparalleled perspective.
The thrusters also helps in avoid Iceburgs
really enjoyed that, my late step father was a chief engineer for another cruise line for 50 plus years and I could listen to his stories for hours on end , this gentleman had that same persona about him....they have to know so much about everything ,very high capacity humans . Im also always amazed at just how much weight wood can absorb and just how big these ships are , I got to go inside a diesel engine room once on one of these and was just awestruck at the size of everything , you could walk around inside the cylinders
Wood is like concrete - great in compression, pretty poor in tension.
Thank you for this team, it was utterly fascinating, such amazing engineering on such a scale
You really have no idea how big a cruise ship truly is until you see one close up in person. I've been on quite a few cruises, and on one the ship I was on pulled up in dock next to the Norwegian Sun, which is relatively small by modern cruise ship standards (around 2,000 passengers) but even that is massive when you're walking alongside on the dock. I've also been on cruises where the ship was parked next to one of the Royal Caribbean Oasis class ships, and those are just ridiculous.
Wait until you see the new Icon class, it's absolutely massive.
Man, this is amazing!! I am no engineer, no scientist. But I clicked on this video to learn something, and I did! This is really special.
As an avid boater I have one reminder I give everyone I see preparing to launch… make sure you put the plug in!
I respect the engineering and planning work so much, whilst simultaneously abhorring the environmental impact each one of these ships have
and for something that could be experienced on land i mean the destinations are luke warm at best with how much time is given to explore
It's also a very ugly ship
Came to the comments looking for people making this point. I can definitely appreciate the engineering but cruises and cruise ships are dumb and very wasteful imo.
The thrusters made in norway is most probably made by Brunvoll, a world leading manufacturer of maneuvering and propulsion systems.
Just wait until you see the engineering spaces inside. It really is a floating city with power generation, water treatment (you really don't think they carry enough water on board, do you? They MAKE IT), waste water treatment, etc. These things really are a marvel!
Sounds like a lot of wasted energy just to cart a bunch of people on vacation around the ocean needlessly. I know, instead of people just going at sitting by a pool or a beach, we can build a pool or a fake beach on a huge boat, and burn heavy bunker oil the whole time to run it all and move all of it around the ocean.
@@gorak9000 someone sounds jealous that they've never been on a cruise.
It's funny how standing under a ship as big as the Empire State Building seems remarkable and scary, but standing in the lobby of the Empire State building seems perfectly normal.
I love seeing how proud Adam makes the folks (rightfully so!) showing off their work, by his absolute joy :D
Last year I was blessed with the opportunity to run the security department of the North Atlantic Ship Repair - Boston site. I was able to see ships like this up close and have gained a whole new appreciation for the incredible engineering marvels that they are.
This is one of my favorite engineering tours of a ship. Thanks Adam!
Imagine if Titanic had those side thrusters
amazing. love it.
Thanks for sharing this information. Fascinating!
Can't wait to see the rest of the series. Love it 👍
Noise cancelling IS wave cancelling.
What a great video! Thank you for this!
Love the prop, the unfinished look is like the dimples on a golf ball, increased surface area gives more force and propulsion, it also stops bubble damage to the prop blade.
Now THAT was interesting!! What a tour!
Love this! What an awesome project and amazing engineering!
LOVED THIS!! Thanks Adam!
Cruise ships are always a weird dichotomy to me. On the one hand they are absolutely horrendous pinnacles of wastefulness, having an immense negative environmental impact basically just so people can get drunk on the seas. But at the same time, holy cow they are incredible feats of engineering on a scale you rarely ever see.
And what % of 'bad for the climate' do you think cruise ships contribute to justify these constant and predictable rants?
@@staceygram5555just from your comment history, I can tell you have an easy yet sad life. Hope you improve yourself.
@@Hooplesso no argument just ad hominem? Predictable and sad
there's one slated for production that utilizes a custom passively cooled salt core reactor that will substantially decrease the pollution produced.
^_^
The virtue positively drips from you
These videos are super interesting and what a fantastic piece of engineering art!
This was so great. Thank you Adam and the whole Princess team!
Fantastically Amazing tour !
Entertaining and Informative.
Those thruster portals look eerily familiar - are the Italians building the derelict space craft from Alien? GET OUTTA THERE NOW ADAM!
Adam Brother, you had me at 'wave cancellation'.....
Even though I'm behind in watching my subs, I'm definitely making sure I watch these videos. And they sure do go fast.
Let me add my thanks and expressions of joy for this video. Great stuff.
That.. Was friggen awesome! 🤘
Thanks for making this video. it was interesting
I spent years at sea on ships just like this one, its great to see videos showing people the engineering that goes on behind the scenes
The lack of friction from the bearings and gears behind those props is blowing my mind
Not much different than wind turbines - just optimized for a different fluid (water instead of air) which is why they were just barely turning in the wind.
ocean vessels like this are always incredible to look at. so much time and thought goes into making one
Yea theres that one youtube channel of a guy that built a large metal ship over the course of like 6years with constant help from his viewers. Its such a difficult thing to do and that was a fairly small ship compared to a massive cruise ship.
One of my first jobs was at a steel plant in Buffalo, NY around 1988. Our job was scrapping the old plant. We used to raid old locker rooms for equipment. We found and used old hard hats like the one Adam has.
Adam thanks so much for doing this series on Princess ships. I've spent last 10+ years building high end luxury yachts & love it. This is just like that, but on a x1000 scale! Amazing engineering, design, & craftsmanship. Side note, the thrusters we use come from Norway. Wonder if same company? Also, I've Never liked working underneath a boat in drydock and I don't care how many blocks are under it! Enjoyed this, thx
TOTAL envy sir! i'd love to see this live in person! thank you for sharing this!!
It’s great to see you still have maintained the excitement of a child when encountering new things.
There was a moment there(among many cool moments) when looking up at the azipods, that you were truely blown away! Kind of a 'im standing under an Imperial Star Destroyer ' type of feeling. Fantastic series Adam👍👍
19:50 In addition to passive zinc anodes, there is also an active anti-corrosion system ICCP (Impressed Current Cathodic Protection) on the case. There can be a large number of galvanic pairs throughout the case. Hanging the entire body with zinc protectors is not the best option, since one zinc protector, due to very low currents, can protect only a small area around itself (approximately 500-900 mm). Several flat zinc electrodes were installed on the ship's hull (the electrodes are isolated from the hull) and the positive pole of the power source was connected to them. The negative (negative) contact was soldered to the case and approximately 20 volts were applied. Such voltage can protect up to 150 meters of the ship's hull. On large ships there are two such stations - in the bow and in the stern with several electrodes each.
Watched so many videos on building cruise ships and ones with you gotta be my favorite.
Really interesting. The technology is beyond where I thought cruise ship building was. Thank you
The air lubrication part dropped my jaw to the floor...
Interesting about the thrusters and 'windage' the Queen Elizabeth very recently had an incident in port where apparently the wind caught it and it broke the moorings. They dropped anchor and used the thrusters to just about stop it in time.
Something interesting about ship stability is the fact that the center of gravity is actually quite a bit above the center of buoyancy, it's not like a balloon with a weight stuck to the bottom.
One of your best episodes yet Adam. Thanks heaps.
I would watch a 2 hours long documentary on ship building narrated/hosted by this man.
Adam - this is a fantastic and fascinating video!
This must have been such a cool experience. When they talked about how basically the Empire State Building was right above them, held up by wooden wedges... Wow, what a feeling.
Totally awesome dude....
I'd love to see a ship in drydock in person someday. It's pretty amazing how something so large is also pretty mobile.
Watching Adam geek out over engineering stuff always makes me smile.
Awesome! can't wait for the rest of the series!
This was incredible content. keep doing these.
So SO cool!! I'm so jealous!!
Thank you for the video, Adam very interesting things that I did not know awesome 👍
I love feeling the humidity through the camera lens, Its not a joke
Fascinating technologies happening under the water there. I never knew about the air injection, that's brilliant.
so cool what you do adam
Great episode!
Great video!
This is amazing! Also I haven't done any machine engineering stuff for 10 years now and I still remember most of the stuff the talked about.