American Reacts How a Single Swedish Submarine Defeated the US Navy

Original Video: • How a Single Swedish S...
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#Swedish
#Submarine
#American
#USNavy
#Single
#Navy
#RealEngineering
#McJibbin
#History
#AmericanReacts
#Reaction
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[@AleksAngel82]

Sweden has been an innovator within military equipment since like the early 1600's, nobody should be surprised about it. The Swedes take on old and new military equipment ideas and refine them, just like the Sterling Engine. For example take their Griffon Jet, it costs a lot less then the most expensive Jets, yet it can handle more or less all kinds of load-outs and is a extremely cost effective Jet for multi-role purposes.

[@derptweaker945]

Well Vikings had effective weapons for ex the "Ulfbert Svord" and especialy there outstanding ability to make ships that could go far inland on small chanels. Those ships was even abel to be transported over land. They could also sail across the osian to Vinland (America) hundreds of years before Columbus. Im not calming to be an expert on this, but they had very god shit for that time period aswell.

[@SgtSteel1]

Just look at Koenigsegg. 1200hp from a 5.0 litre V8 going into a gearbox that does not even have gears in it. Nice!!!

[@johanolofsson8558]

Don't underestimate us, there's a lot more where that came from! :) Cheers from Sweden!

[@derptweaker945]

Maybe the USA should let the swedes engineer there shit

[@kalle5548]

@@derptweaker945 Naa, would be to OP… Jk, but we (SAAB) are really good at matching or even out performing other military hardware at a much lower price since everything is designed with context in mind, the US subs can be submerged longer and travel further, something that does not matter in the small body of water of Swedens coast

[@mikaelnaslund2964]

@@kalle5548 A few years ago i had the privilege too visit SAABs UW center in Sweden because we in the KBV tech departement wanted a new ROV capability. In my most personal opinion (as an ROV technician for 20 years) the Falcon is outstanding in capability, ease of service and massivley reduces my migraine in troubleshooting compared to the ROV system we have now..... 5axis manipulator 😃

[@Simon-ft4kc]

Johan hahahahaha

[@bardeivindbakk6993]

Skål mann.

[@bengtmowitz5012]

I think you lost yourself into the sterling principle. The main thing is that the Gotland sub actually "sank" the carrier. The 1 year lease of the Gotland sub to the US Navy were actually prolonged to a total of 3 years.

[@iKvetch558]

Hi Connor...in the case of the Gotland class, the Stirling engines allow the batteries to be recharged without having to snorkel or run the main diesel engines, and as the video noted it means they can stay submerged at low speed on their electric motors for 2 or 3 weeks, instead of for a couple of days for traditional diesel-electric subs. The main reason the Gotland is so darn quiet is that they mounted all the machinery inside on "rafts" that are noise isolated from the hull, but any sub that can run on electric motors is going to be pretty damned quiet to start with...other diesel electric subs of other friendly nations have achieved success against US task groups in the recent past. As you mentioned, the propeller can come into play, although prop design is more about reducing cavitation at higher speeds as opposed to reducing low speed noise. You are right that until recently the subs of the Chinese PLAN have been the noisiest in the ocean, but that appears to be rapidly changing on their latest models, and it definitely was not just due to older propeller designs.

[@devonlord99]

HMAS Rankin for example. Coincidentally the Collins-class is basically the Gotland-class with an upgraded sensor suite. There is a video on KZbin of Rankin getting the kill on a US ship.

[@iKvetch558]

@@devonlord99 Well...the Collins class never got Stirling engines, unless there has been a new development of them? I believe the Collins class are just traditional diesel-electric boats, aren't they?

[@iKvetch558]

@@devonlord99 Not that it matters if Collins has Stirling engines, any well made and properly quietened diesel-electric can be as quiet as the Gotland class, as long as the crew is well trained and the boat is well maintained. All the Stirling engines do is allow a longer period of submerged operation on batteries.

[@mikaelholmkvist6994]

NBC interviewed the swedish commander, it is on youtube. I read an article by an american officer, that was allowed to visit HMS Gotland. He was shocked by the sight of the mixed crew working in their underwear...... :D At least the Commander was in uniform when he was interviewed.

[@dealerovski82]

even the chef on the swedish subs has to work quiet. no hammering the meat.

[@tSp289]

@@dealerovski82 Is he allowed to rub it at least?

[@dealerovski82]

@@tSp289 not sure, he mist get approval from the captain.

[@deportedsouls3165]

@@dealerovski82 "The Swedish chef" :)

[@swededude1992]

Welcome to Sweden. We are so relaxed about nudity it chocks the rest of the world.

[@jjh3455]

To think we went from screaming and hollering on viking ships blowing our horns to let EVERYONE know we're coming to be the sneakiest of the sneakiest, us swedes are just built different!

[@dirkspatz3692]

They heat the air on top. Hot Air needs more space and produces pressure. The Pressure drives the Piston down. Then they replace the hot air with cold air from the botton and cool the hot air in the head exchanger. The now cold air needs less spac and produces underpressure. The Piston moves up. When Piston is up the Exchange of the air is stopped and heated again producing pressure and move Piston back downwards. then Exchanging the now hot air with the cooled down in the heat exchanger and again underpressure and on and on and on.

[@olsa76]

USS Monitor was designed by a Swede. So take a look on how one swede had a big part in how your war ended.

[@morphman86]

Sortof, yeah. Ericsson had designed the steam ship the Ironclad class was built from, while Cornelius DeLamater was the main builder of the sub. DeLamater hired Ericsson to assist on the conversion from traditional steamer to a fully armored one, to ensure he didn't pull out anything that was structurally significant. The weapons system, including the world-first revolving turret, was designed by Theodore Timby, who was also the first to design what most naval yards now use for dry-docking a ship. One of the reasons people credit Ericsson more than Timby or DeLamater is because Ericsson got the highest commission. In reality, he did the least amount of work of the three of them specifically for the Ironclad. All his work was pre-made by himself from an earlier project, which is why he got such high commission. But with that same logic, Timby, who only received 5%, had worked his entire life on the revolving turret and worked it to perfection. The only difference between the two's effort specifically for the Ironclad was that nobody wanted to buy Timby's work before the war broke out. So, in essence, Ericsson had already gotten paid for his design, therefore he got paid more when the design was reused and therefore records show him as the biggest contributor.

[@AndersJackson]

He also constructed some heat-cool (Stirling) engines, so not only Monitor and the propeller for monitor.

[@perhammarstrom4559]

Swedish ingenuity at your service...

[@potatoaim2.031]

You should react to Dark Docs video about this. It's more about the operation.

[@F1rstWorldNomaD]

Dude, I LOVE that you're taking your time to actually understand whats being said. 99.9% of people wouldve just said "ok" and moved on. As a viewer, the constant rewinds might actually be a bit annoying to many but not to me. And to be frank, not to anyone who actually matters. This is genuine. *MAD* #Respect for not bullsh!tting

[@TukikoTroy]

"And to be frank, not to anyone who actually matters." Nope, still annoying. And wtf are you to decide who 'matters'?

[@AndersJackson]

@@TukikoTroy it matters to him. If it doesn't matter to you, doesn't matter. 🙂

[@TukikoTroy]

@@AndersJackson Please read what he wrote, and my reply in context and then tell me if your response actually makes sense. "As a viewer, the constant rewinds might actually be a bit annoying to many but not to me. And to be frank, not to anyone who actually matters." Then "Nope, still annoying. And wtf are you to decide who 'matters'?" How does your response to me make sense?

[@sup3rbird]

There is approximately only atmospheric pressure under the piston as it has such a large volume so it provides virtually no resistance to the piston moving down. Robert Stirling (25 October 1790 - 6 June 1878) was a Scottish clergyman and engineer.

[@bodan1196]

Lindybeige did a video on the Stirling engine some time ago. As I remember he managed to explain it much better than here.

[@tor6684]

Lindybeige! He's just epic. Although, out of his +600 KZbin-videos, some are (frankly) quite boring. But, even those boring ones are still extremely worth seeing... because, He Is Lindybeige!

[@AndersJackson]

Yes, he did. And if you actually knows how it work, and put some thoughts into it, one should be able to come up with a better explanations. And also explain the different A and B types of engines. Actually, NASA made a car powered by a Stirling engine. If you are interested in Stiling engines, NASA is a great source.

[@Ballsaq9455]

Now it’s time for you to learn Swedish

[@phishy261]

Just found your channel the other day and have been watching several episodes so far and they are all awesome! Sweet that you are so into Sweden, the same way all my American friends are and they're always asking me how things are over here ^^

[@RustyDust101]

The USA uses 110V at 50Hz, vs most of Europe which uses 230V at 60Hz for power supplies. As most equipment manufactured for use on board subs usually comes from their home country as well, it would not be economically feasible to change the voltage used. But the transformers from the generators used to power all electric and electronic devices generate a fairly high frequency noise (for human ears inaudible) that transmits through the structure of the sub into the surrounding water. This can be detected by hydrophones, not really sonar. Sonar operates at different frequencies but that doesn't really matter for this discussion. The reason why most subs are so ridiculously expensive is because *every single moving part* on the sub has to be quieted and dampened down as much as possible. That means mounting generators on vibration canceling bearings, discoupling the drive shaft from the turbine through a similar method, delink walking spaces from the floor mountings, etc. On most US subs which are nuclear powered this requires a huge amount of spinning parts (turbines, valves, etc) that have to be silenced. The fewer moving parts there are the easier it is to reduce the noise generated. While a nuclear reactor solves the problem of fueling a sub for even decades, it generates both heat as well as noise (comparatively speaking, that is). A falling wrench would be a dead-give away during quiet operations. Heck, in the 80's a sub during war-games once was detected thanks to the airfan of a *microwave* on the sub's galley making a tiny, regular squeaking noise. THAT'S how sensitive these 'ears' are. The Gotland class already slipped through the anti-sub defenses of a carrier group with its fairly simple propulsion solution. The German type 31 class has a different propulsion system. It is a hydrogen fuel cell electric submarine. In this a fully electric engine drives the propeller shaft. There are virtually no moving parts except the rotor of the engine, and the drive shaft. The hydrogen is allowed to flow through a membrane where it generates electricity without spinning a generator, thus reducing noise producing parts. The hydrogen fuel cell of the type 31 sub is so efficient that it can stay submerged for a total of up to 6 weeks when fully loaded with supplies and fuel. There is almost no heat generated from the fuel cell requiring no cooling pumps (as per nuclear subs). After the six weels it needs to be refueled (and resupplied for the crew as well). But those are the maximum times. For more comfortable missions, the submerged time on the type 31 is usually limited to three weeks. BTW: the six weeks also the time ANY nuclear sub can stay submerged before its crew needs more supplies as well. Yes, the reactor doesn't need fuel, but the crew will need fresh food after that time. The typ 31 is able to operate submerged in a mere 9 meters of water. The released (but not declassified) info of subsurface depth is 800 meters, ~ 2900 feet. Most modern military subs have released diving depths of 600 meters, roughly 2100 feet. Those are NOT destruction depths. The type 31 penetrated the defensive cordon of the carrier groups not once, but twice. On the first attempt it passed through, fired a simulated spread of torpedoes while fully submerged. On transmitting their data it was first doubted that they had succeeded but after multiple verifications it was shown that, yes, it had succeeded. The spread who have completely broken the keel of the carrier, sinking it within minutes. The spread would also have sunk at least two support ships as well. On the second attempt they were even more audacious. In that setting they went to 'Seerohrtiefe', periscope depth and took actual photographs of the carrier over the water, with current time and GPS position data in the photos. Then they dove, fired a spread of simulted torpedoes, and vanished completely undetected. After this a four star admiral in the US navy was strongly advised to seek retirement. Edit: the shape, number of fins on a propeller, its size, the twist of the fins, and so on is a dead give away for engineers for what rotational speed the whole propeller is optimized. This rotational speed can be used to calculate the usual cruising speed, as well as possible cavitation speed when turning at full speed. This again leads to tactical give-aways about the performance of the sub. This means that this external part of the sub HAS to be concealed in dry dock photographs to not give away performance data of the sub that are determined by its engine/generators.

[@secularnevrosis]

I belive that the need to have a specific fuel for the hydrogen cells and their relative cost made the Gotland class to have strilings. They will run on the same diesel as the main engines and ofc the oxygen. The hydrogen cells do however have less/no moving parts. One benefit of using the stirlings are perhaps not obvious at first, but if petroleum based fuel is limited, the stirlings can run on alchol/methanol or vegetable oils etc. Do the type 31 "double stack" torpedos in the tubes too?

[@peterjohansson587]

In Sweden we use 230V 50Hz. That is wery comon in Europe.

[@AndersJackson]

You are right, except it is the other way around. It is 110V, 50Hz (you also have 220 V in USA), and 220-240V, 50Hz in most of Europe. Yes it vary about 20V depending on which country your are. About the Gotland subs, they used this in several times, and usually sent the periscope photos the attack to the aircraft carrier captains breakfast. And yes, it happen regularly. 🙂 The Swedish subs are designed for Baltic sea and Swedish coast and archipelago, so they have to be relativity small. And the Stirling engine are not as expensive as fuel cell engines.

[@bostonblackie9503]

Robert Sterling was a Scottish clergyman and engineer 1790-1878.His grandfather Michael, invented the threshing machine. Robert attended Edinburgh Univesity at 15. He further attended Glasgow University. He is considered as one of the fathers of hot air engines. Sterling came up with a first patent for an air engine in 1816. The principle of the Stirling Air Engine, the air works in a closed circuit. Our forefathers were way ahead of us! Today NASA and Los Alamos National Laboratory continue to show an interest in Sterling's Engine due to it's seemingly perpetual motion capability. -Wiki

[@AndersJackson]

Yes, he made up the Sterling cycle that explains how they work and how it should be made efficient. Any way, that is a shit hot and cool invention. Really excellent invention and understanding of what would come later. I am really, really impressive of what he did.

[@harryp829]

I’m proud of my country🇸🇪🇸🇪

[@peterlampinen90]

Gun to see Connors confused fase trying to understa how the stirling engine works!

[@FenrisUlfven]

There are a lot of good videos on YT describing how a Stirling engine work and how to build your own using simple materials. The thing with Stirling engines in these submarines is that the engine works without vibrations (=silent) and can be run to charge the batteries while being submerged. This extends the submarines underwater endurance a lot being a much cheaper alternative to nuclear.

[@AndersJackson]

I have built a simple Stirling engine with two beer cans (ok, maybe three then), some wire, a pet bottle cap, an old CD and a balloon. No, it will not power a sub, but it will turn and run on heat difference between the top and bottom.

[@morphman86]

I believe the buffer space on the cylinder is less for the space to compress the gas (as it is a constant amount of gas on both sides) and more to keep most of the gas the same temperature as the room around it, preventing that side of the piston from going through the heating/cooling cycle. That makes the bottom part of the piston one temperature at all times (or close to it), allowing for the heated gas on the other side to push down, or for the lower part to push up as the upper side cools down and contracts. That's at least my (extremely limited) understanding of a Stirling Engine.

[@AndersJackson]

Actually that space are usually connected to the air pressure. That why the lower side of the working piston has constant (air) pressure, and the inner part have varying pressure depending on the temperature of the air in it. The bigger difference between the warm and cool gas temperature during a cycle, the more energy you get out of the engine. The fun part is that if you instead of heat up the the top, you cool it down (relative to the other side), the engine will reverse. 🙂 That is why it is great in space. You have one part of the engine in space the other is heated by nuclear material. The fun thing with Stirling engines is that you can run them backward. If you turn the crankshaft by force, you will make one side of the cylinder hot, and the other cool. It you reverse the direction, the cool and hot area switch places. So that is how you can create extreme cool spots on engines to freeze ait to liquid.

[@michaeld.uchiha9084]

A German fuel cell sub did the same. It penetrated the fleet and made a picture with the Periscope of the USS Nimitz. The german Navy did send the picture to the Pentagon.

[@Arthion]

The big downside is that a diesel-electric sub cannot achieve the immense range that a nuclear submarine has even though they can achieve a very impressive submerge time thanks to stirling engines comparred to regular diesel-electrics, which is perfectly fine for a navy mostly supposed to protect local waters. Anyhow, it shows a significant vulnerability towards the near total silentness of such a submarine.

[@UltraCasualPenguin]

But when will them be used on other side of ocean? Exactly. Sweden uses them ONLY for coastal defense. Also average depth of Baltic Sea doesn't really allow subs to be hidden under surface for months, nor it's not even needed.

[@T0NYD1CK]

The Stirling engine explanation was very confusing. Basically, you have one cylinder with one end kept hot and the other end kept cold. Inside is a "displacer" piston that is NOT a tight fit so as it moves back and forth it will alternately move the hot gas to the cold end then move the now cooler gas back to the hot end to be heated. As the gas temperatuire changes so will the pressure so you can link a piston to that gas that can drive a crank. Search on "How Stirling Engine Works | 2D Animation of Beta Engine" on the "FACT F F" KZbin channel.

[@AndersJackson]

The way the regenerator is done in this example, the displacement piston has to be tight. In the beer cans Stirling engine I made, the regenerator is inside the displacement piston. Simpler design and works great. But the most basic Stirling engine is where you heat and cool down the top cylinder, which is very, very inefficient. That is where Stirlings displacement piston and regenerators makes it into an more efficient machine.

[@squirepraggerstope3591]

OK, this vid is about the very quiet and expertly handled Swedish Gotland Class SSK, HSMS Gotland (lead boat of class), but purely by coincidence I couldn't help noticing some of the footage in the vid is of completely different submarines. For eg, from 03:43 to 03:50 mins when a British Astute Class SSN is shown heading out to sea from her place of construction in Barrow-in-Furness (the ruin in the background is the Castle of Piel, a.k.a. 'The Pile of Fouldray' on Piel Island in Walney Channel at the end of the Furness Peninsula in N.W. England.)

[@UltraCasualPenguin]

Did you even listen to video. Time you mentioned person talked about nuclear subs. Why should they show video clip of diesel-electric sub when they're not even talking about them? That's like talking about lifted pickups with 40" rims while showing picturea of Barbie's pink Corvette.

[@squirepraggerstope3591]

@@UltraCasualPenguin I listened but did you? In FACT, at the point in question, the narrative is not concerned with propulsion systems at all, but sonar and identification of subs using active sonar arrays by the frequency.

[@cannonballbob6949]

If you want to know more about how Sweden was in like the not so glory days of when a lot of us migrated to the states I recommend that you check out a new movie called “Utvandrarna” (the emigrants) which is based of the books of an old relative of mine who is also a very famous author, and it is about Carl Oskar and his wife (can’t remember her name even tho the movie is kinda more about her adjusting to the new life and coping with leaving Sweden) and it can feel a bit like a drag it is not going to be an exiting movie but if you are genuinely interested in that (like me) then the movie will end earlier than you want it too!

[@AndersJackson]

Nice. There are two movies based on the book. And now a new one which is more about Kristinas part of the history. Kristina is the name of Carl Oskars whife. Kristina and her Astrakan apples.

[@Luredreier]

8:43 Most materials expand when heated and contracts when cooled. After all, heat is just the kinetic (movement) energy of the atoms within the material.

[@AndersJackson]

Yes, that is what generates the power. When the air heats up, it expands and when it cools down it contracts, so that makes the power piston go down and up. Then other piston is just to move air from the hot top area to the cool bottom area. Anyway, there are some other Stirling cycle engines, like the NASA engine. Where there are no moving parts except a piston that vibrates when it moves air between the warm and cool area. It works because of resonance between the weight and a membrane. By add a magnet to the piston weight with the displacement piston, you can generate AC electricity directly from the movement. No need for any crank shafts or things like that. Really neat idea. I have not manage to built one though, mostly because I didn't understand the construction when I build it, but now I know. 🙂

[@josephturner4047]

Just to um, you know. All ships and submarines have a sound signature. Like a finger print. Submarines on patrol record and identify every contact. Those unknown are recorded for future identification. We've been doing it for a long time. And we ain't doing it in our own.

[@AndersJackson]

Yes, and still US navy didn't catch the Gotland class subs.

[@Red19UK]

Lindybeige did a great vid on stirling engines if you want to learn a bit more.

[@vegardthedude3754]

Don’t mess with the vikings!🇸🇪

[@tobiascarlsson5967]

go look at lindy beige for the sterling engine he made a good video about it,

[@helenagreenwood2305]

As we are on the brink of a possible conflict between Russia & Ukraine can you watch I Vow To Thee My Country by The Bands of HM Royal Marines - its British but is relevant to everybody 🇬🇧⚓🇬🇧 no need to apologize for rewinding the videos if you miss something 😀

[@dylanwhite3383]

You should watch the Dark docs version of this video it goes into detail about the exercise that led to the virtual sinking of the aircraft carrier

[@sulevturnpuu5491]

'Gas on top part and just air below' mmm... yes... air is gas.

[@AndersJackson]

Except the gas in the cylinder can be any gas. The gas in the other side of the cylinder is just air, at ordinary air pressure. That is why it is constant pressure on the other side of the piston.

[@sulevturnpuu5491]

@@AndersJackson That was sarcasm pointing out bad terminology. Air is gas... or mixture of several gasses, if you will.

[@Luredreier]

5:42 The speed is the same everywhere, this is about pressure.

[@SysterYster]

Well, that's pretty cool. :) Also, why am I watching a video about submarines? (Even though I'm proud my country has created such a cool sub). :P

[@squidcaps4308]

The animation is quite poor, its color change happens in wrong time and overall the diagram is not clear. It is like taking a syringe, blocking the nozzle and heating it. The piston moves away as the air expands inside the enclosed space. Then we cool the air and the piston returns.

[@AndersJackson]

It depends on which direction the motor turns. But yes, the illustrations could have been better.

[@jimmyryan5880]

You should watch his video on the metric system.

[@Seoulkoreasouth7]

That’s why you don’t mess with Sweden

[@erikrusso9808]

You trying to understand the sterling engine was hilarious lol, probably would have been easier to just google it instead of rewatching the same video 10 times

[@AndersJackson]

Or buld one. I have built one out of Beer cans, Old Cd, some Wires and a balloon. 🙂

[@Luredreier]

10:34 Any gas, it can be air on either side.

[@jensandersson9603]

As a swede I really like your videos but there is one thing I continually feel that your are missing. Everything you watch about Sweden seems to be focused on the southern Sweden. I would really find it interesting to see you react to some far north of Sweden videos. On the top of my head I can only suggest stuff like BIGSTEVEFROMENGLAND and Micke Grus (Michael Gravel). But that's just more jokes then educational. If you were to find some educational videos about the top north part of Sweden I would really love to see that.

[@jensandersson9603]

@68K I'm talking about Umeå, Skellefteå or Luleå.

[@AndersJackson]

@68K ha, ha ha. That was fun (from Dalarna myself, and that isn't even in middle of Sweden).

[@swelokaxx]

I’m a Swede. I did not know this.😂

[@fellowsound1241]

is the russian when they start the big ones we can hear in sweden when its in st petersburg

[@nightstorm5914]

imaging modern day babarians/vikings from sweden conquer the world in stealthy u-boats that even the US can`t detect

[@goodcolimgpu10]

The Sterling could power the world for free with Hot ground water and cold sea water. But No we have to use coal

[@AndersJackson]

It can also be heated by sun and cooled by air. As there are lots of sun in some parts of the world. There are also a company that makes small sterling engines in a rack, which make it easy to replace one engine when it fails. Just remove it from the rack (the others can still run), and send it for repair. If you have one extra, you can put it in, or just wait for the repaired one to be sent back. Those engine modules generate electricity. Really cool system, that can be run on anything that is hot and warm.

[@panther7748]

The german navy has a similarly silent, independent-from-air submarine, although it uses hydrogen fuel cells and not a stirling engine. (Type 212A)

[@jez76]

Not so much a “reaction video” as a “I’m confused by technical details video”.

[@josephturner4047]

I heard a Light House defeated the US Navy.

[@AndersJackson]

Yes, portugal or spain. I don't remember.

[@Luredreier]

16:26 Not the loudest. But they're still some years behind the west and Russia. Russia is almost on par with the west. As for what's the loudest thing on a sub, it depends on what's going on. If a subs propeller is moving fast it'll create low pressure that will force water into becomming steam bubbles. Those steam bubbles then collaps into water again when the pressure stops being so low in a small explosion. These explosions can do a lot of damage to the metal of a ship propellar, and of course they make loud sounds that can be picked up by other naval vessels, above and below the surface. The water pumps of nuclear subs that's used to cool down the nuclear power plants makes sounds. And the traditional diesel engine in old fashioned diesel subs of course makes most of the sound there, since those essentially involve exploding diesel inside the sub. A sterling engine doesn't require explosions, just temperature differences, like between diesel burning regularly and the cold water outside. A electric engine is still quieter then all of the above. But you can only store so much electricity. So a Gotland class will use electric engines fuled by batteries when it needs to be *really* quiet when moving. Then it'll use the sterling engines to recharge the batteries when it needs power but can't make sounds. And it'll use old fashioned diesel engines when it needs to move fast or recharge and some sound *isn't* a problem. Part of why the Sterling engine is needed though isn't just movement. A sub needs eletricity to run internal systems like to produce air (although I'm not sure if the Gotland does that with electricity). So if a Gotland class sub is hiding on the bottom of the sea, not moving at all, staying quiet, it's still using power just to keep the crew alive and everything else it might need to keep running with electricity. And eventually it'll need to recharge the batteries in some way or other, and that's done with the Sterling engine if sound is a problem. Then it can keep the crew alive or move again as needed.

[@stevemower4639]

Fascinating.

[@aleajactaest7242]

Sweden did it with a modern submarine but in 2015 France also defeated US Navy in the same way with a 30 years old submarine! And since 2020, the French navy has been using new, much quieter and lethal submarines

[@dzzope]

Air is gas.. just a natural mixture. Hot air rises because it expands when heated, meaning its less dense. Seal that concept in a cylinder with a piston. So 1 side stays constant temp thus density. The side that is heated and cooled thus expands and contracts causing the piston to move.. thats the basic concept, everything else is complicating this concept for more efficiency.

[@AndersJackson]

But the thing is not so much the weight as it is air pressure. Hot air expands, cool are retracts. So if you heat up and cool down the gas in the engines cylinder, the power piston will move and generate movements (which you use crankshaft etc to turn into rotations, like an ordinary Otto motor or steam engine). The problem is that if you would do that on the cylinder, alternate heat and cool, it would be very inefficient. That is where you have the displacement piston that just moves gas between the hot top area down to the cool lower area of the cylinder. And by heating up the regenerator, thus getting cooler when pushed down and heat the gas when pushed up, you get an more efficient engine. And the power you can get out of the engine is the difference between the hot and cool area. The greater the difference the more energy you can get out of the engine.

[@dzzope]

@@AndersJackson i dont understand your reply.. you took a basic explanation and complicated it for someone struggling to grasp the concept and pointed out something i didn't state in doing so.. i said density, density doesn't change an objects weight, but the volume it occupies.

[@Jonsson474]

”Air” is also gas. Mostly nitrogen and oxygen. 😉

[@jarls5890]

As far as I remember - I was told a story while doing my military service (so may not be true) that during the 80s/90s during an exercise in the Atlantic a small group of Norwegian MTBs (Motor Torpedo Boats) - small very fast boats carrying torpedo's - managed to score several hits on a US carrier and it was deemed "lost" in the exercise.

[@dmoomd1023]

Connor do you know youtuber channel Thoughty2 very nicely edited and educating videos,lots of different categories.Sry my s**t english 😁

[@User-jf4rz]

I don't minde at all that you rewind, you have to understand to react, right.

[@ChristofferOrrmalmUtsi]

It was so simple this video that someone could get very confused by watching it apparently.

[@avantiisworkshop7365]

Do you know mr Peter Griffin?

[@micro923]

That guy from the Simpsons, right?

[@mathildalidb2913]

@@micro923 family guy

[@dmoomd1023]

The same dude Seth made orville too Genius 😄

[@1985Viggen]

We can defeat US Navy with a single Volvo 240 ;)

[@grandmagertrude6358]

1-0 😈Try getting it back

[@Kroscilla]

US got the amount and muscles. We Swedes got the brains and tactics. Sorry just the truth.

[@spacerunner2345]

Grattis

[@johankaewberg9512]

Gotland is way advanced…

[@MelinaJamiee]

And to think this was way back in 2005

[@johankaewberg9512]

@@MelinaJamiee The Gotland has been worked on for a bit.

[@olivergaming5691]

dont mess with sweden boiiii lol

[@Maax1200]

they didnt sink it was just a test so you know

[@AndersJackson]

I the war game, it was sink. So if they would have sent real torpedos, you would have one air craft carrier less. 🙂

[@F1rstWorldNomaD]

18:50 Dude... Again *MAD* #Respect I know NOTHING about you, this is the third (I think) video Ive watched of yours... but you seem like a legit fakkng guy. It might be annoying to watch the adds but I cant NOT respect the argument you put forward. No greed, no narcissism, no nothing. Just humility and an eager mind. I stumbled across your channel cus Im Swedish, it got recommended to me. If you ever wanna know anything about Sweden, Hell if you ever wanna come here to visit and need housing, just holla.

[@perhammarstrom4559]

Gotland is an island of ours!

[@AndersJackson]

And have named a Swedish Uboat class, and some destroyer ship class.

[@perhammarstrom4559]

@@AndersJackson So?

[@gaming4days78]

team sweden

[@Panda_Obey283]

Nah ur not Connor ur Jorge

[@gtz8085]

Also done by German subs 😂

[@theRealRindberg]

"react" videos is just less obvious way of stealing other creators content.

[@voicestudios5805]

bro made 7 minutes into 20

[@Richie8406]

You are struggling because you need a basic understanding of physics. It is not magic, it is thermodynamics. Most peps can't conceptualize this.

[@AndersJackson]

And because it is thermodynamics, and it was invented before we knew about thermodynamics, it is very impressive by reverant Stirling.

[@MrDHxXx]

🤘🇸🇪

[@davidbouchard3275]

Yeah OK, your not understanding it.

[@TheJonasbz]

@connor you live on the wrong side of the pond, heres how we did it kzbin.info/www/bejne/gmOZg42aorZlpKc

[@user-fp2gr4ic3x]

It was not much facts about the sub and so forth!!!! We only have 50 of these subs in sweden, but in these days they could for sure stop a lot of russian ships!!!!!

[@mrpotat8028]

Rename video " American rubbin forehead to an engine "

[@2121gul]

Gå på 🍻🇸🇪

[@perhammarstrom4559]

This would be really funny if it wasn't so serious.... The US is spending all this money on "defense" and the bulk of it is going to waste!

[@derptweaker945]

Good thing we are allies

[@Cybjon]

That's a terrible explaination of a Stirling Engine.

[@fabriziopastorino3792]

the Italian submarines did it first, then the French ones

[@I_dunno_man_but]

According to saab Kockums, the maker of the Gotland class submarines, the first submarine equipped with a stirling engine was the HMS Näcken in 1988.

[@mikaelsvensson410]

no the italian made a pizza and the french made the wine and then they got on a picknic on a field with flowers and run of together hand in hand to the sunset..

[@fabriziopastorino3792]

@@mikaelsvensson410swedish made a viking helmet out of ikea to get drunk on mead and plunder england

[@aleajactaest7242]

@@mikaelsvensson410 Who invented the 1st submarine? Leonardo Da Vinci = ITALY Who invented the 1st powered submarine? FRANCE Who invented the 1st powered submarine able to launch torpedoes? FRANCE And by the way, submarine is a FRENCH word it means Under Navy. No need to say more...

[@AndersJackson]

@@aleajactaest7242 submarine, or u-boat, are engilsh meaning under water. And in swedish it is called undervarttensbåt, or U-båt for short. Which means that it is a boat going under water surface. Leonardo Da Vinvi also made the one of the first tank, and helicopter, and probably u-boat.

[@josephturner4047]

Also, this is a load of bollocks. The Gotland is a diesel electric boat.

[@secularnevrosis]

Yes. I can charge the batteries with the stirling when submerged. That takes away the main problem for diesel electric subs. All (modern) diesel electric subs are quieter than their nuclear powered relatives. They are also much smaller, or can be made much smaller than nuclear ones. Smaller is better for staying undetected on a tactical level. Less so, on an operational level, if patroling a huge ocean. That is why countries that have the need for global coverage use nuclear submarines.

[@laziojohnny79]

The Dutch did the same thing to a US fleet, with a diesel electric.

[@erikaskeroth9720]

@@laziojohnny79 The Dutch Walrus-class submarine( The submarine that took the picture) Was built in Sweden by Saab Kockums. As is also Australia's submarines as an example. The Swedes are in the top class when it comes to coast defense submarines.

[@laziojohnny79]

@@erikaskeroth9720 yeah I know, nevertheless it was the Dutch navy that was aboard, I'm pretty sure they will be as skilled in the upcoming new subs which will be build in Germany and Holland or France. Point of my comment tho was; the US navy and army get more often humiliated by their allied trainingpartners.

[@erikaskeroth9720]

@@laziojohnny79 I agree with you, I am sure that the Dutch submarines are just as good and trained as the swedish submarines. It is always fun to se U.S. navy to "lose" against a small cheap sub. And they strengthen their traing fleet to lookate the subs. Especially now whit the Ukraine invasion. And if I remember correctly the Swedi's will received a new class (HMS-BLEKINGE) this year. Do you know the name of the class of the Dutch sub? It would be interesting and fun to read a little about the new submarine class, Which is being built now. 🙂👍 Cheers mate ! 🍻