Stumbled over your channel a few weeks ago. Now I saw nearly all vids you did so far. Huge respect for your work. looking for the future to come.

It's so happy seeing one of my favorite creators (and kept me liking subs even more) actually doing these. :)

9:40 Its hillarious how quickly this statement got outdated.

The idea of double shotting your torpedo tube is fascinating, it's like going back to the age of sail where they would be standard either double or triple shot their guns (having two or three cannon balls in the gun, to increase number of rounds)

So happy you have made another video! and a long one! Thanks!

Great work, glad to see you on KZfaq.

Amazing drawings yet again! Love this channel, fascinating stuff

Great information and thanks for the time taken to answer the questions...

My dad, Jesse J. Bryant Chief electrician U.S.N. Atlantic submarines 1946-67 and I was Advance boiler technician U.S.S.GRIDLEY CG-21 ACC/ABC L.M.E.T 6YO 10-17-84. Stay safe 🙏 ❤️.

Really awesome content! Top quality and the format is just right, and above all super informative as always! Can't wait for the next one.

Just recently came upon your channel. Always interesting and informative.

Bravo! Truly incredible presentation! Thank you.

Great presentation especially of the best SSKs. The presentation on the ROKN newest anticipated SSG was quite informative as well.

What was the best submarine movie?

Super cool! Thanks!

Do you see more use of active sonar as sacrificial UUVs proliferate and, possibly, more subs are designed as motherships for them?

It's becoming increasingly clear why the US wants Australia to acquire nuclear subs. I love your term 'nuclear mafia'.

The JULIETT and ECHO I/II SSGs and SSGNs were launch platforms for ASCMs, but had the same problem as the REGULUS I and II shooters.

Great video...👍👍

Really enjoyed that - thank you

I do a silly little dance and shake my butt when I hear that little cute intro song. Can’t help it

Great presentation as always. Thank you for that. If I may, I do think that I-400 types Subs would be very important for any Navy. F-35s operating from a Submarine would be a formidable weapon platform.

Ive learnt a lot about the latest Submarines from your youtube videos thank you for your pro bono contribution to the National Security studies for many Cold War old relics such as myself with the esoteric submariner upgrades.

Great content! Certainly learnt quite a bit from this video! I have one topic in mind and hopefully you can explain them in the next Q&A session: Fairwater Planes vs Bow Planes - why some navies adopt one over the other?

could you talk about background shipping noise and how it is expected to change in a major conflict with reduced commercial and more military shipping. Also are large scale noise "decoys', or more noise saturation devices a thing?

Barracuda SSK didn't age that well.

19:42 I think the suction effect might have to do with the pressure differential near the surface, which is much greater than at depth. For every 10 meters you go down, one atmosphere is added. So this is linear. However that means that between 0 and 10 meters, there is a doubling of the pressure. Between 10 and 20 meters, it's just 50% more. Etc etc etc. More pressure pushing against the lower part of the submarine than against the higher part will exert a net force in an upward direction. However, if this is taken into account in how the sub is controlled (in a modern sub I assume there's even a "fly-by-wire" system in place), I guess that it should be manageable. Edit: nevermind, I forgot Archimedes. The upward force acting upon a body in water is equal to the weight of the water displaced. So depth does not play a role.

yeah but when you use optic cables or cameras on periscope you can make it very long sort of tube in tube anyway to avoid suction at periscope depth

Do a show on Australia new subs. And also the unmanned subs/drones.

Q: Anti-sub work was traditionally done with surface vessels, why is it now done with other subs? Are they better at it or is it cost (no need for AAW)?

What's strange is that Australians seem to think Japanese submarines are crap while their Collins class submarines are at top of the heap.

Some nice renderings, btw.

23:42 while having some sort of AIP sub would expand the USN's capabilities, its much easier to offload that work onto other NATO or NATO alligned(Sweden and Japan) countries. This would manage some of the problems the US would face if they attempted to field AIP/litoral subs themselves. Most importantly the infastructure. The countries that already have these types of subs are much closer to potential areas of operation where the subs would be needed which would get around the need for the US to foward deploy the necessary support staff and materials to either Europe or the Pacific. Also it aviods the politics of building conventional subs in US yards, which would probably result in a significant reduction or outright cancelation of the Virginia Class. Which would effectivley offset any gains in capabilities made by the introduction of litoral subs. This is also incredibly unlikely, especailly now with the news that the USN and RN will provide Australia with Nuclear powered attack submarines. I feel like going foward the US and UK should look more to allys to support more niche combat operations(Special Warfare, litoral combat, etc). While the RN, USN, and even MN focus on larger scale blue water operations and strategic sealift

SUTTON mate you need a better microphone! (anything dynamic will do)

The benefit of having smaller none nuclear submarines in addition to the current RN sub fleet. Is simply better staff retention associated with increased promotion prospects. As well as providing the possibility of an active part time reserve force. There is also the added benefit of developing another submarine construction and servicing facility in England. increasing the specific skilled workforce and potential for export orders of none nuclear vessels. Historical locations such a Blyth on the North east coast come to mind. Perfectly located and once home to the famous or infamous 6th flotilla.

I LOVE your channel. Thanks for all your hard work! If Red October is the 2nd best sub movie, do you consider Das Boot the best?

@HISutton Hmm, interesting analysis on the I-400 concept. Fast forward to modern times, though, and we can launch cruise and ballistic missiles from underwater, so why not drones? I can imagine maybe old ballistic missile submarines getting turned into "submerged aircraft carriers" for drones with them being launched from the missile tubes. Even large drones could maybe have a mechanism for folding their wings inside the missile tube so they don't take up much space, like aircraft on aircraft carriers. You could fit a lot of AirPower into those tubes! Drones could carry out multiple roles like recon, ASW, ground attack, etc. The problem then is of course retrieval. The only answer I have is that the drones would only be able to operate 1.) Within range of tanker aircraft so they could refuel and extend their range or 2.) within range of a US/allied airbase. Alternatively, someone could work on a mechanism for actually retrieving the drones from underwater, maybe a robot arm or something? Just going off the cuff, of course. Anybody who actually knows about these topics is welcome to chime in.

Is a trickle charge very low Mwatt reactor of quietish natural recirculating coolant as a primary patrol power source. Hotel load + silent running at say 5 or 6 kts. With solid state li ion batteries + primary Diesel for deployment is it a viable concept?

What should be your first favourite submarine movie? Love your videos by the way, super interesting

make a modern periscope doc please

Do you consider The Wrath Of Khan to be a submarine movie? At least the Mutara Nebula bit?

instead of sailles subs what about just smaller ones would that be viable?

Do Submarines have a fatigue life on the hull, what are the main reasons for withdrawal or scraping ?

Is your site down? I tried it stated connection rejected/ can not be reached.

Malaysian Navy does have a DSRV. The host ship is MV Mega Bakti. Superb video. Ordered your 'World Submarine' and am keen, awaiting its arrival.

If The Hunt for Red October is supposed to be everyone's second favorite submarine film, what is supposed to be the first? Down Periscope?

Awesome video mate! Can't wait for the next one, As the Akula sub is part of your logo is it one of your favourites? Would love to see a list of what's your favourite subs based on looks entirely? For me, I like the look of Russian subs due to the sail design with the bow planes, like the Akula for instance!

At 33:25 (about X-form control surfaces) you state: "... if one of them jams...". If you think about it there's still some control up-down and left-right if ALL BUT one jams. Enough to limp back to base. That's a huge level of redundancy!

What’s the best submarine movie?

Wasn’t that a shocker that Australia canceled their order with France.

Loved Hunt for Red October...Whats the number 1 sub movie??

What is the best submarine movie? If Hunt for red October is number 2?

How effective is India's SMART vis-a-vis chinese navy in IOR or SCS ??

Apparently the 212CD adds 1000 tons submerged, up from 1800 on the A. I'd argue it really shouldn't be called a 212 at all, especially considering things like the 216 and 218SG exist.

Going back almost 40 years my diesel/electric submarine Hms Oynx traveled down to the Falklans war & completed duties the nuclear boats also down there could not do ie inshore surveillance, transfer of equipment/personnel& resupply for sas/sbs.

There is not enough coverage of the JMSDF, pls. can you do an episode.

Interesting

Ooohh ooh please Sir!!!! You don't have to surface to launch a UCAV. A lifting body ("wingless") UCAV - could possibly be launched underwater - the advantage being few protuberences like wings that would need toresit hydrodynamic forces. Disposable rocket booster to get it out of the water. Recovery is an exercise for the reader :-). Actually that's doable too. You have ballast tanks (or bladders) to make it neutrally bouyant - ballast tanks woiuldn't have to be heavy, and they would not need to be able to be "blown" like the ballast tank on a sub, they culd be pumped out once recovered, using external pumps. The UCAV effectively ditches then sinks itself a certain depth and "hovers"in the oggin. The mother sub can then pick it up, possibly with the aid of a smaller ROV. The bigger question is what would you use it for that you can't use a missile for? If it could communicate back to the sub in flight there'd be lots of things you could use it for. But without in flight comms - and Id guess you wouldnt want your sub at periscope depth with an antenna up for the duration of a flight - then i'd say there's little you can use it for that a non recoverable missle can't already do.

It's easy to see why the subs can mate...it's rescue...but also an opining for attack

I think it's very hard to actually judge how good anti submarine capabilities are because the capabilities of the Sonar a hard to judge.

In my view the I-400 class suffered from temporal dislocation, vis a vis its best matched weapon system. Rather than abandon a few M6A floatplanes to the vagaries of weather and allied AA fire, why not pack the hangar with the MXY7-22 Manned Cruise Missile? Bet you could fit six of those in the hangar. The Mod22 had the turbojet sustainer motor meant to give the first generation guided cruise missile a 22 km range. "For the emperor-who has no culpability for this war! No-really!" Opinion: That's a crappy battle cry, imo. At least Roosevelt and Truman admitted to approval of-and responsibility for- war plans. In Japan, however, the buck stopped well short of the top. Why do I make the point? Hard to understand why Japanese pilots, sailors, and soldiers would willingly die for a man who was against the war from the start. Imagine being enshrined in Yasukuni for defying the emperor's wishes. Think about it a minute. It'd be like dying for any public figure who has washed his hands of your fate. Like sacrificing your life for Josephine the Plumber, the Culligan Man, or the Tidybowl Man. The Japanese are far too pragmatic for that. You die for the emperor because you think you are doing what he expects of you. Not for any other reason.

If my favorite SSK isn't #1 I'm gonna be really really mad!

Wait, if hunt for red october is 2nd favorite submarine movie, what is 1st?

2:44 "docks with a Russian submarine" i believe Red October was a Soviet submarine.

15:25

Re: question 1 -- Call them "SSH" perhaps, for "Submarine, Host"?

16:24 you missed letter "D" in "severoDvinsk"

AFAIK Lada class doesn't have AIP.

26:00 must be quiet effective otherwise navies wouldn't ..... Hold on there you never hear of LCS? Not to mention the zumwalt class....

Australian Barracuda - that didn't aged so well now, isn't it

Severodvinsk

I don't think you can add attack class it wil be operational in 2035..

Concerning the Typ 212A: the export model is called Type 214. The difference is Type 212A is built with antimagnetic steel, Type 214 is built with ferromagnetic steel, so it is vulnerable to magnetic mines. This technology is not being exported.

Australia not getting them now

Ehm, you really SHOULD make the "top 5" thing a chapter of its own, otherwise anyone looking for that will think this was nothing but fake clickbait. Also, i would say that it is wrong to state "overall nuclear submarines are more capable", because that isn't true. Nuclear submarines have more/ADDITIONAL capabilities, but that lets them do additional things, it does not make them better at their primary tasks. For example. Nuclear subs have longer "hangtime", which means they can be on patrol for longer, but this does not make them better at actually finding and sinking targets. You can have 3 SSKs for the same pricetag, and as long as patrol area isn't too far away, those 3 will provide more reliable "on patrol" time. Nuclear subs have greater speed capability, sure, but when are they going to actually USE that higher speed? If they use it, they make it blindingly obvious where they are to any other subs or ASW forces nearby. Essentially, SSNs are great for empires with farflung patrol regions to reach and cover, especially in peacetime when they can travel at higher speeds and it doesn't matter if they are detected. However, nuclear subs are also overall easier to detect, considerably so even, compared to a modern SSK. And what is the most important part for a submarine? Stay hidden as much as possible. Meaning that the absolute baseline mission for ALL submarines, SSKs are better at it. Basically, if you put SSN vs SSK 1 on 1, the SSN needs something like 20 year tech advantage or a notably better crew, or they are unlikely to win. Or as someone i know likes to exaggerate it, a Virginia class sounds like a freighttrain with flattened wheels while their Gotland class mimics a very shy mosquito. ... Regarding a UCAV carrier, that is probably a nonstarter, as the only realistic option seems to be to treat the UCAVs as single use. Though it might be possible to keep and launch such through something like a VLS, ie from a sub that would look more like SSBN, but needing to be on the surface or close makes this of even more questionable value. What MIGHT be a more useful idea would be to have a VLS like launchsystem in the sail for UAVs(and as long as the size of the UAV is kept small-ish, it should be possible to also fit a retrieval system in the sail). One of the biggest issues for subs tend to be the ability to recon at greater distances. Especially for launching missiles. But if you can send a UAV to get targeting data? Should be possible to double or triple effective range at least. Of course, it also means the sub will have to radiate, which is really bad, but situationally at least it might be useful. And with small UAVs and the launch system in the sail, the sub should be able to stay mostly submerged even when launching and then be able to dive enough to only keep masts above surface. Not the best idea perhaps, but potentially situationally useful at least.

Why would autonomous minisub tenders need to all be submarines? The same job could be done much more cheaply by vessels of destroyer size or smaller.

Why not just use their German or Swedish dogs if they want AIP subs? Just say "Fetch".

Why is no nation brave enough to sell new subs to Taiwan ???

Reckon for current generation SSKs, the Type 212/214/216/218/Dolphin2 family are very capable, and it will be hard to grade them, though the nuclear-armed Dolphins will be the most dangerous. The Lada.. may likely be trumped by the later versions of the Type 039 Yuan, which are in series production. I suspect the PLAN had a good look at the Kilos they bought before coming up with the Yuan requirements. Submarine UCAV? Nah... imposible... www.thedrive.com/the-war-zone/31121/how-the-ohio-class-guided-missile-sub-was-born-and-why-theyre-much-more-than-meets-the-eye