I-400: The Japanese Submarine... That Was Also An Aircraft Carrier

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[@megaprojects9649]

Check out Squarespace: squarespace.com/megaprojects for 10% off on your first purchase.

[@amacca2085]

Can you do the great man made river GMMR

[@rtyertrt7876]

Check out arpeggio of blue steel it has the submarine in it

[@distantthunder12ck55]

When the Soviet Union fell Japan was the second largest economy in the world for a time.

[@DavidJohnson-jp8xc]

The US brought back the I-400, I-401 and the I-14. In the picture of the deck gun you will notice a man in civilian cloths walking on the deck. THAT was my dad; Lead Gunners Mate, GM3 John M Johnson Dad was heading into town in Pearl Harbor for liberty; The reason he was wearing civilian clothes.. I still have the Bridge compass from the I-400 in my possession which my Dad brought back after the war. :) Dad, by the way, was the only crew member of all three Subs who had a camera on board and the pictures were posted in book describing the the whole life and voyage of the I-boats. Pretty good video. Good job.

[@chicken_burgers]

How much will you part away with that compass

[@classapilot3148]

@@chicken_burgers Well, I'm not sure. The compass is visually seem in the book in one of the photo's and since the I-400, 401, & I-14 are sharing the same seabed..... I wouldbe happy to PM commincate with you if you have an offer. In the meantime, woud you like more photos?I don't remember exactly how many photos I've already sent you. You have some really great videos produced. It's interesting that HURL(I believe the researchers name was......("Terry"?) at the time?) didn't even know where to look until I spoke with them back in the day. I appreciate that SOMEONE wishes to keep alive these vessels.

[@Isaac862]

Wow thank u for sharing

[@bdillon3747]

Japan did have a habit of mounting aircraft onto any sea vessel: Ise class battleships, Tone class cruisers, the I-400s

[@ToxikDouche]

I mean mounting reconisance planes on ships was something all the navies did in ww2. Though the I400 was definitely a far step ahead.

[@Charron684]

well the IJN did run out of aircraft carriers so they were desperate for naval aviation

[@aethyr6776]

@@Charron684 It wasn't just running out of aircraft carriers. IJN doctrine for scouting from the the start of the war dictated not using carrier-based aircraft for scouting, saving the whole carrier wing for attack. Instead they relied upon scouts mounted on other ships, cruisers especially, for scouting. Most notably, those Tone-class cruisers mentioned above. They were a specific design that broke from the normal IJN heavy-cruiser layout at the time, moving all turrets in front of the superstructure (and reducing the number of turrets to 4), to clear space aft to operate more scout planes. Point being, while pretty much everyone did some degree of mounting aircraft on ships. You are right though, in the sense that the Japanese took it to something of an extreme due to desperation. Unfortunately for the Japanese, the conversion of the Ise-class ships into that sort of hybrid "battlecarrier" design was an ill-conceived joke. The only thing they can really be forgiven for was the fact that I'm pretty sure they only did the conversion because by that point they probably were going to be just as useless as full battleships, nothing but targets for the US naval aviators.

[@vic5015]

@@ToxikDouche one would tend to think most WWII battleships had recon and spotter planes. Otherwise you're just fumbling about blindly hoping to run into the enemy and also hoping that your shells hit without having any way to know for sure and make adjustments. Carriers took it to another level of course, but naval battles were *already* being fought from *well* beyond visual range.

[@Subpac_ww2]

Their naval doctrine required it. They didn't use submarines for scouts like we did during the interwar years, they used aircraft from their scouting forces which were typically well armed and fast cruisers. It was also common, and wise, to launch said aircraft and dump all your aviation fuel overboard before an engagement, save it going boomboom and spreading fires to the torpedos full of pure oxygen 🙈

[@mayoite160]

SUGGESTION: Ilyushin IL-2 - The single most produced military aircraft in aviation history - Visionary WWII ground-attack "flying tank" and spiritual predecessor to the A-10 Warthog - Some WWII German nicknames for it: "meat grinder", "butcher", "black death", "slaughterer", "concrete bird" - What Stalin had to say about it: "Our Red Army now needs IL-2 aircraft like the air it breathes, like the bread it eats."

[@vicorp]

I love that advanced fighter jet, the A6M Zero. Bet without the propeller on the front, the jet part would make it sooo much faster.

[@duytranuc4025]

And snap it wings....

[@IglooGaming1775]

The second I heard jet I jumped for the comments looking for this comment 🤣

[@whatinthe4500]

Jets didnt really have much of advantage over prop planes. Not at that time

[@ImDatComo02]

bro, I love intelligent people on intelligent channels, we literally all did the same thing.

[@SkadooHusky]

To be fair, he's producing a lot of videos and reading a script. I can see how he wouldn't think about it.

[@OldRepublic1212]

Hiroshima was bombed on the 6th of August, not December. Would have been weird if it was December since the war was officially over by the 2nd of September.

[@jerff]

Betting it cause the scheduled attack on San Diego he rehearsed and had December in mind. Also the probably shoots like 40 videos a week….NEED MORE OF THAT BLAAAAZE POWDER!!

[@vustvaleo8068]

if the Imperial Japanese didn't lose the war I think we would have seen submarines capable of launching giant robots.

[@JAEUFM]

Maybe submarines that turn into giant robots??

[@henghistbluetooth7882]

If that wasn’t in Red Alert 3 it should have been :)

[@carlramirez6339]

If Imperial Japan didn't lose the war, those giant robots would be powered by the pain and suffering of conquered peoples.

[@ahuels67]

Or maybe submarines that launch more submarines that launch more submarines and on and on

[@eustache_dauger]

Full metal panic?

[@awgates85]

I know this video was probably in the works for a while, but it feels awesome to request a video in the comments and have it posted a couple of days later lol

[@Omegatonboom]

No... It was all you! Pat yourself on the back! Lmao

[@joshuasinger8385]

I have already heard this story however also enjoyed hearing Simon's retelling.

[@TheDutchRanger]

You should do one for the french "Surcouf" cruiser submarine that carries a twin 203mm gun turret.

[@jacobschuurman5209]

The Japanese zero wasn't a "fighter jet" it was piston powered

[@2KOOLURATOOLGaming]

IKR I was like wow, must've been some achievement.

[@derkaiser9881]

Would've been funnier if he said they invented guided missiles.

[@broggsey]

I had an F16 in 1943

[@owenshebbeare2999]

Blame the ignorant American scriptwriters and editors.

[@deadon4847]

@@owenshebbeare2999 Simon must be rich to afford to bring american script writers and editors to Prague, Czechoslovakia where he lives, works and uploads these videos from.

[@spacecase13]

"advanced fighter jet A6M Zero series" Uh, no? The Zero was always a prop plane, as pictured.

[@fanoftails]

At the time of its development, the A6M was in fact the best carrier based fighter in the world

[@decentish8546]

@@fanoftails yes, put it was not a jet.

[@ignitionfrn2223]

2:05 - Chapter 1 - Submarine aircraft carrier 3:15 - Chapter 2 - Type B1 5:20 - Chapter 3 - Mainland strikes 6:45 - Mid roll ads 8:20 - Chapter 4 - The I400 class submarines 11:35 - Chapter 5 - Aichi MGA Seiran 13:05 - Chapter 6 - Operations 15:20 - Chapter 7 - The dark depths

[@jajssblue]

Might have to revise that to "manned aircraft" soon. As I'm pretty sure sub launched drone aircraft are definitely in the works if not already done.

[@blurglide]

It was done back in the 1950's. Before SLBM's, subs would launch cruise missiles in a manner similar to the I400. en.wikipedia.org/wiki/Regulus_missile_submarines

[@jajssblue]

@@blurglide Good point! Forgot you could totally count the cruise missiles as essentially autonomous drones. Lol!

[@MrFlatage]

@@jajssblue He is a Wiki and edit troll at best. So Bigfoot is real because Wiki says so? Come on no one is forgetting that a missile is not any aircraft. Meanwhile if we use our 3 digit IQ? We can easily proof read the US budget and see the USN request for 120 AeroVironment Blackwing unmanned air vehicles (UAVs) for its submarines. Showing how far behind the USN is as usual. These have been standard equipment for ages ofcourse. With the execption of North Korean 'submarines' maybe.

[@somethinglikethat2176]

The Germans had a remotely guided anti-ship missile (Fritz X). Of course the Allies worked out pretty quickly that they could just jam the radio and make it unguided but points for creativity I guess.

[@jumangi2322]

Ace combat 5. Syinfaxis was a submarine/carrier! Thank thing was huge! Love the channel!

[@Will-rv3tf]

That thing is the holy grail of submarines. I wish I could design one of these things.

[@LordJaric]

The Alicorn in 7 was bigger and better,

[@siggy6044]

"How have I not heard of this?" more like "oh ya, Simon has mentioned this about a dozen times throughout videos 😅"

[@barrydysert2974]

That was for the benefit of the Noobs. ☺️ OGBB!:-) 🖖

[@adamloverin231]

I get sad these days watching any Whistler video without Sam around.

[@KelticTim]

There’s also about a million videos about these subs. If you watch Fact Boy, odds are you’ve seen this sub about 1,000 times in your recommended feed

[@GabrielMcKnight]

I lived in Brookings, Oregon as a kid (age 6-9). The Japanese Pilot of the aircraft after the war, gifted his Katana to the City of Brookings; considered his actions not all that honorable. The Katana was held in the local Library which included pictures and the history of the event. Simon Whistler, thanks for the reminder of those childhood memories. Please keep up your video content! =)

[@DudeMan2805]

Yea I live in Brookings I’m 16 atm the sword is still sitting in the library

[@GabrielMcKnight]

@@DudeMan2805 That is very good to know that the Katana is still there. It's been a few decades since I last visited Brookings. Such a Beautiful Oregon Coast town, let alone the beaches. No wonder the Pilot considered his actions dishonorable

[@brodymiddleton1590]

Yeah, I’ve been to Brookings, and I did some reading on the sword and it wielder. According to one of his daughters in an interview after his death, he planned on committing suicide right there, if they did not accept.

[@Kadeo-ms6qw]

Such a cool concept. Also it’s admirable how much the Germans and Japanese shared.

[@colbeausabre8842]

Kadeo Try idiotic concept. The USN and IJN had tried in the Twenties and decided it was a stupid idea. IJN never got the memo and wasted time, manpower and industrial resources on these useless jokes

[@DavidJohnson-jp8xc]

The deck gun actually was a German gun the Japanese mounted on the I-400,401 & 14. The I-14 was a bit smaller than the 400 and 401.

[@synthviking844]

I've been waiting a long time for this video, thanks for doing it.

[@Wxwy]

Loving these in-depth videos on the naval projects of WWII!

[@YamahaR12015]

I've been waiting on this video since I first discovered this channel. Thank you Simon

[@dodoubleg2356]

I enjoy all your vids Simon, but this one particularly was very interesting & entertaining. 😉👍👍✌️

[@chrisslky7018]

I first learned of the Seiran when I was able to take a tour the Smitsonian Garber Facility in ‘96. They were in the process of refurbishing the Seiran at the time. The docents were very educating and told a very similar. Thanks and Cheers

[@christalbert722]

YES! I too toured Garber at nearly the same time, saw them working on that plane- fantastic experience. Being so close to so much rare/unique/important aviation hardware was amazing. One of the best vacations of my life!

[@chrisslky7018]

@@christalbert722 It was very cool to see it all assembled again when the Udvar-Hazy Center opened. I wonder where the tools are stored now?

[@xessenceofinsanityx]

I love the irony of the Japanese inventing the selfie stick - if you go there today, there are signs EVERYWHERE saying not to use them 😂

[@NicholasIngel]

Loving the new background color setups

[@goonshark8668]

3:40 that picture isnt taken from within the us… thats one of the mini subs that self destructed in Sydney harbour….Ko-hyoteki class sub. You can see the Sydney harbour bridge in the background. They would be a great video idea Simon 😁

[@AnimarchyHistory]

A Zero Fighter Jet… finally a weapon to surpass metal gear.

[@rolandoscar1696]

I LOVE this channel.

[@Interceptor00X]

Hmm yes, the "Advanced Fighter Jet A6M Zero" I can't wait for the memes.

[@lilPOPjim]

Hahaha this was my exact reaction.

[@ucvillaruz]

Wonderful sharing Sir

[@kirkchilders139]

I look across the raging war, and feel the steady beating of my heart. Arashi no mae no chisukesa ni Yaiba wo furioroshite ikunda

[@Sorarse]

Damned those Japanese are sneaky, disguising their jet planes with a propeller on the front.

[@silk1435]

Just watched a video by the ConeofArc channel on these boats, two in one day, yes please

[@Davis777_69_years_and]

The agents working for S.H.I.E.L.D would have loved this back in the day😂

[@jeremyfranks7608]

Who do you think the Japanese stole the plans from?

[@iainmcculloch5807]

The British submarine, HMS M2, was a submarine aircraft carrier based on the design of the K-Class, (coal-fired) steam-turbine powered, submarine. Launched in the 1920s, she sank with all hands in Lyme Bay, off the Dorset coast, in 1932. When the wreck was located, the hangar doors were found to be open. This was the probable cause of the sinking. Efforts to salvage the submarine were unsuccessful, and she is now a popular dive site with recreational divers (she lies at a depth of 30m / 100 ft). More detail on Wikipedia: en.wikipedia.org/wiki/HMS_M2

[@stevk5181]

K-class was steam powered, but by oil not coal.

[@iainmcculloch5807]

@@stevk5181 Yes, you're right. A case of over-zealous editing on my part after KZbin said my original comment was too long. It should have read "oil-fired, not coal-fired" in the parentheses.

[@TheEvilCommenter]

Good video 👍

[@cubethai]

There is a God! Thank you Simon for making this video upon my (and prolly a shit ton of others) request! You really made my day there. Greetings from Finland!

[@christopherjohnson1387]

Fantastic beard Sir Whistler.

[@twocvbloke]

The only thing about the name "Yamato" is that the Enterprise-D's Galaxy Class sistership was the USS Yamato, because trekkie... :P

[@avatarnang5803]

NEEEEEERRRRRR-RRRRRRD!

[@twocvbloke]

@@avatarnang5803 And proud!!! :P

[@laveritesurlestemoinsdejeh8522]

Not only that, it blew up, just like its namesake...

[@StarScapesOG]

Could you do either Bingham canyon copper mine or bagger 293? Either would be cool videos!

[@user-kw9cq2kh5m]

Nice video ,my favourite world war 2 Submarine of all time 😊

[@awgates85]

Now we just need a Simon Whistler Pop figure lol

[@Panzer4F2]

Big shout out for using that picture of the Zero.

[@cathyb1273]

Thanks for the discovery. I have never heard a thing about those subs.

[@darrelvincent970]

I know this isn't the channel for this but how about David Hahn the radioactive boy scout

[@makeracistsafraidagain]

If he hasn't covered it already he has an appropriate channel for it.

[@lilyeves892]

A video on cruiser submarines could be cool

[@somethinglikethat2176]

Drachinifel has one on the French attempt. kzbin.info/www/bejne/gZqZamVvjLVgick

[@MonkeyspankO]

Command and Conquer theme starts playing

[@bttawfiq]

I know now where the idea of the "Blue Noah" or "Thundersub" Cartoon series came from!

[@pf844]

You should do a mega project on your beard ! That is going full ZZ top!

[@camerancole8433]

All those crisp white bed sheets and muddy boots.... alicorn

[@chrislong3938]

The Zeros turbo fan was ground breaking!

[@route2070]

This is the second time I have heard about bombs dropped by Japanese planes in Oregon. I was surprised that I didn't learn this in school with how much we learn about WWII but this didn't come up.

[@MrFlatage]

In my lands of the free where we salutre the red, white and blue we learn factual history. In the US kids are brainwashed by propaganda. So no one outside the US is surprised much. You are only allowed to know what the 'goverment' decides you are to be programmed with. Right now we are seeing bans on Critical Race Theory ontop of the massive stack of free information which are illegal under US law to teach. Now in my lands of the free I could pick To Kill a Mockingbird by Harper Lee as subject to write my essay or for example George by Alex Gino? In the US you would be arrested and sent to a FEMA re-education camp. Those books are banned and illegal too. Very sad but the few Americans who escaped the US and got past the wall? Usually end up in a mental ward. It is almost impossible for them to get a grip on reality when you expose them to the real truth that is taught. Heck majority of Americans actually believe the world is round!

[@ironwolf2244]

Shame this hasn't been experimented with more.. however, there have been concepts for planes which can operate as submersibles, so maybe that'd fill the gap if it ever comes to fruition. We've got alot of future ahead of us..

[@philkonestos2837]

I think laser weapons will make it too risky to operate planes in the foreseeable future.

[@TheBlackAndWhiteCow]

I think they are largely replaced by SLBMs today

[@YamahaR12015]

Aircraft carrying submarines have no tactical advantage in modern warfare tbh. At one point for sure but now? Not really

[@MrFlatage]

@@philkonestos2837 Sure you got a laserweapon now? Reagan kept screaming about those too. All the US has operational? Yes sceams only.

[@philkonestos2837]

@@MrFlatage please go watch Rheinmetall's testing videos for laser based aerial defence. They are ten years old, work brilliantly. Smaller versions of it are already implemented as a missile defence for some armored German infantery transport vehicles. No more RPG hits. As far as I know, the IDF is currently upgrading its missile dome with similar tech. So yeah, no more planes, no more rockets.

[@devzeppelin1911]

You need to do a video on the Bismark

[@AkienMacIain]

I think I heard you say "The advanced fighter jet" about the Zero? Advanced (for the day) fighter, sure. But Jet?! Um, no.

[@kineticdeath]

we all know Simon meant to say fighter "plane", when refering to the Zero, but still, the A6M was a feared "jet" fighter!

[@user-dg9pu4pe9d]

If they have not already been done, the Hunley and the Turtle would be good topics.

[@koppadasao]

0:38 For a moment I thought it was Keno Don Rosa...

[@frollsshontay]

It’s an interesting bit of equipment - they were unknown to the allies until very late in the war- if not after the surrender. .

[@DavidJohnson-jp8xc]

In fact, a total surprise to the entire world.

[@frollsshontay]

@@DavidJohnson-jp8xc except of course to the Japanese…

[@dmk0210]

It's a shame one of the I-400s wasn't preserved as a museum ship for history, but at least a very nice example of its Aichi M6A Seiran aircraft still exists at the Smithsonian's Udvar Hazy museum in Virginia (as is the actual Enola Gay B29). Well worth a visit.

[@DavidJohnson-jp8xc]

No one of the US crew members agreed with eh US Navy's decision to scuttle the I-boats. But when the US, Russia, Britain and France argued over who would get them, The US, in all it's wisdom decided that no one would get them and used the for testing the new torpedo triggering design on them. (basically, telling the world; "fine, we'll let the air out of the football and nobody will get to play.")

[@graemeking7336]

My brain is tied in knots from all these metres, feet, pounds and kilos.... Yet, I bow in reverent subservience to the mighty beard.

[@timothycook2917]

Towards the end of World War II, the US Navy had a brand-new submarine sink at the dock of the Boston Navy Yard. It was raised again and put in storage, never to be used in service. It was eventually sold for $57,000

[@Attofoxy]

I know it can be hard to source relevant pictures and footage, but I am a little surprised to see the Sydney Harbour Bridge in the picture of the "I-25" that shelled the continental US.

[@Blutnase]

The Japanese had human steered torpedoes, an overlooked category of kamikaze.

[@darenallisonyoung8568]

I'd like to see a Megaprojects video detailing the workings of Simon's 12+ channel KZbin empire.

[@curseofthegreat]

Hey Simon, Since submarine videos do well on your channel and with the current conflict in the East, it might be worth covering the Ohio Class Ballistic Missile Submarines, the US’ submerged nuclear deterrent. The Ohio Class can carry up to 24 Trident II D-5 submarine launched ballistic missiles (SLBM). Each SLBM can hold 12 W88 475 kiloton warheads (or 14 W76 100KT warheads) that can be independently sent to different targets over 7000 miles away. That means one submarine can deliver up to 13.68 MEGATONS of thermonuclear destruction to dozens of independent cities. For reference, the Little Boy atomic bomb dropped on Hiroshima was a paltry 15 kilotons. And there are 14 of these submarines. Technically there are 18 total, but 4 have been retrofitted to fire cruise missiles to comply with the New START treaty. This comprises roughly 60% of the United States’ total nuclear warhead stockpile.

[@charlesxavier4409]

would the American campaign against the Japanese Merchant fleet during ww2 be considered a major project, the American navy managed to sink the entire Japanese merchant fleet 2 1/2 times by the end of the war.

[@colbeausabre8842]

"Biggest" doesn't equal "best" and, BTW, every tried putting aircraft on subs during the interwar era but decided it was a stupid idea. IJN apparently never got the memo. Of course, the whole Japanese submarine war in WW2, despite some successes (Indianapolis, Wasp, Juneau,) was misbegotten - instead of focusing on the merchant ships supplying the front, they only tried to get the warships - with limited results.

[@joescriff4812]

QUESTION FOR ANYONE: From all on-line references I can find it appears to me that Japanese submarines of WWII had only forward torpedo tubes. This seems odd to me as almost all submarines of the time incorporated one, two or four after tubes (and in some cases, even additional external tubes, both forward and aft, to increase firepower). Why did the IJN fail to install any aft firing tubes? The reason is not space limitations as even the giant I-400 Japanese subs, do not appear to have had any after tubes at all. Can anyone provide any additional information of insight?

[@chemputer]

Calling them aircraft carriers is a *huge* stretch. I mean, the Cleveland class light cruisers carried 4 floatplanes, some battleships and heavy cruisers carried a few more than that (not even considering the hybrids, Ise and Tone), and hell, there was even 3 Fletcher class destroyers that carried a floatplane and catapult in place of one of their torpedo launchers. Plus, the I-13 and I-14 Submarines carried 2 floatplanes as well. And, you had the French Surcouf that had two 8 inch guns *and* a floatplane. That was an "underwater cruiser" (i.e. "let's try to get around the Washington Naval Treaty via building submarines with heavy cruiser caliber guns since submarine displacement wasn't limited!") with a plane, which is arguably more interesting.

[@jonathanwelter]

The Zero was not a “jet”.

[@fps079]

It is amazing what will be attempted in the desperation of war. I would prefer to be amazed by accomplishments in peacetime, such as those produced by CERN.

[@starzkream]

There is a difference between a u-boat and a submarine. A submarine is designed to remain submerged during its entire patrol, while a u-boat operates on the surface, but submerges for attack. I just learned this myself recently.

[@nicholasbrown668]

idk who taught you that but its false lmao, U-Boat stands for Unterseeboot or U-Boat, Unterseeboot is German for Under Sea Boat no difference between Uboats and Subs besides the name

[@starzkream]

@@nicholasbrown668 Do a bit more research.

[@nicholasbrown668]

@@starzkream i have, USN.Gov even backs me up, Uboats aren't any different from Submarines (to this day the German navy refers to its subs as U-Boats, are you saying their subs just sit above water all the time?) even him saying that is proven wrong by historical German examples of subs staying submerged for long periods of time while on patrol U-Boat again is just a phrase that came about from the German word for submarines Unterseeboot, even the definition of the word itself states that its the German word for Submarine

[@nicholasbrown668]

@@starzkream had to come back since I did research as you say, is the U15 a type 206 submarine not a submarine? because the German Navy gives it the U designation and refer to it as a U-boat, so does it never go underwater? it just sits above the waves all the time right? and is the Klasse 210 not a submarine as well? because both the Norwegians and Germans refer to the Klasse 210 (one of the fastest and most silent submarines on earth) as a U-boat also assuming the Type 212A is also not a submarine? even though the USN classifies it as a Diesel Electric Submarine assuming the newest sub in the german navy the U36 also isn't a submarine right? what about the Type 700? is that also not a submarine? what about the Tridente class? guessing they arent submarines?

[@nicholasbrown668]

@@starzkream also you said Uboats stayed on the surface but submerged before attacks? thats blatantly false, German Uboats most often made their attacks from the surface so they could use torpedo tunes as well as their main gun, U-boats would stay submerged UNTIL they attacked, that alone disprove your false theory on Uboats being different from Submarines staying on the surface while hunting left the Uboats heavily exposed to Radar (which is why the snorkel was invented so the Uboat could stay submerged even longer before making attacks) no sane u boat captain was making patrols above the sea, it left them exposed to aerial recon and attack

[@alyssinwilliams4570]

THUNDERSUB!!! (or alternately, Space Carrier Blue Noah)

[@Restilia_ch]

Not just the biggest subs of WW2, but the biggest subs ever until the Soviet Typhoon.

[@DavidJohnson-jp8xc]

The I-400 was 400' long, the SSBN 598 USS George Washington class Ballistic Missile Sub Class was 381' 8.5". The 598 class would fit totally inside the US Trident. I was stationed aboard the USS Robert E Lee. SSBN 601 (George Washington Class). Not quit as big as the Tridents but still to this day the largest Diesel Sub ever built in history.

[@joelbarwood7172]

Do the rescue and recovery of the USS Squalus. The first successful submarine rescue.

[@franciscoduarteauthor]

Did Simon call the Zero a "jet"? D:

[@Siiello]

it's like the US was like oh you're planning to WMD us? WE'LL SHOW YOU WMDs!!!

[@informationcollectionpost3257]

Have viewed other videos on them but the videos didn't have the dimensions of the subs.

[@mickaleneduczech8373]

Since you mentioned the balloon bombs, I'm going to shoehorn in a side story that doesn't get enough attention. The US government kept the balloon bomb attacks secret, both for US morale and in the hope the Japanese would give up if they didn't hear any word that the bombs were making it to the US. But a response was needed. So they transferred the 555th Parachute Infantry Battalion, an all black unit, to the west coast and trained them as smoke jumpers. The unit responded to 36 fires with over 1200 individual jumps. But because the whole mission was secret, their story was lost to history. I've also heard references to an all black fighter squadron that patrolled the west coast, shooting balloons down, but have never been able to find information on them.

[@dutchess406]

So there were successful attacks on American soil beside pearl harbor?

[@mickaleneduczech8373]

@@dutchess406 If you're just talking WWII, there were a few incidents. A Japanese submarine shelled an oil field outside of Santa Barbara, but didn't cause any damage. I believe another submarine fired a few shells at the coast of Washington, again not causing any damage. On the east coast, German submarines were sinking vessels off the Atlantic coast, in the Gulf of Mexico, and in the Caribbean.

[@TRUMP20Z4]

Carried 'ONLY' 3 aircraft onboard....ffs that's awesome!

[@viloscohaagen4230]

Do a video on the Japanese manned torpedo & manned missile.

[@jimmccauley2424]

Need a 1/24 scale Simon Whistler action figure. Would look right beside a 1/24 scale DeLorean!

[@Mullet-ZubazPants]

*Soviets:* "Hey, lemme take a look at that" *Americans:* "Take a look at what? Whatcha talkin' bout Vassili?"

[@michaelkown3073]

Am i one of the only ones who noticed he said 6th of December not August For the dropping of the atomic bombs

[@caesarshotdogchampion8738]

So, smaller versions of the Scinfaxi-class and Alicorn(Ace Combat reference)

[@cschu879]

Lundrie??

[@duncasaur5074]

A-10 Warthog video please?

[@92suzukigsx1100g]

Awesome. Please do a video on building Talladega superspeedway

[@Heidelaffe]

I am sorry, but how is that in any way a megaproject? It is just one of several very, very similar NASCAR racetracks in the US.

[@chrismills980]

Didn't realize the first A bomb was dropped on the 6th December !!!!

[@gezzamate3916]

Do the Union pacific's bailey yard, worlds biggest rail yard

[@ImDatComo02]

Although, I'm offended by that zero fighter jets, I forgive you. I love this channel... But this is your warning!

[@Brodie.McLeod]

Everyone here is talking about how Simon referred to the Zero as a jet fighter, and here I am thinking about how Japan managed to have the second largest economy for a time, only falling to third within the last decade and a half.

[@artcamp7]

the zero-- NOT a "fighter jet", btw

[@douglashaus1820]

International Geophysical Year!

[@BigGroupHug]

This is some Crimson Skies level nonsense. Love it.

[@edward9674]

I think what they were looking for with the I-400, although it didn't really exist in the time besides the rather crude V-2 rocket, cuz aircraft even with folded wings take a lot of space and don't have a very big payload. Yeah so missiles, rockets n shiet.

[@auliaimamwicaksana4265]

Do The Silk Road

[@jihadthat777]

Come on Simon, you're making the same derpy mistakes as watch mojo. Calling the Zero a jet fighter is similar to how they called the Mig15 the fighter that kicked off the jet age.

[@boomznbladez405]

For real... I dont think simon is writing these, but the writers could do a bit of proof checking. Ffs

[@jasonwomack4064]

They also said December for the bomb drop. Anyone who pays even minimal attention to WWII history knows they were dropped in August.

[@scooter2099]

Used to like Simon a lot, but he's getting as bad as The History Channel at times...

[@vic5015]

@@scooter2099 at least he's not doing fake "documentaries" about ancient aliens. Yet.

[@jerff]

Needs more cocaine….allegedly….guy’s gotta make like 40 videos a week.

[@rileyvandeweg9140]

In the old PS2 game Heroes of the Pacific you get to sink the I-400!