How Did This Torpedo Modification Expose Pearl Harbour's Weakness?
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- Опубликовано: 7 дек 2023
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✩ABOUT THIS VIDEO✩
In this video we investigate how the Japanese modified torpedoes so that they would work in the shallow waters of Pearl Harbour.
✩ABOUT CASUAL NAVIGATION✩
I am a former maritime navigational officer and harbour pilot, with a passion for animation. My hobby is presenting educational stories and interesting nuggets from the maritime industry and sharing them on social media to keep them freely accessible to everyone.
For training & educational use, I offer downloadable variants (free from all ads, sponsors, and social prompts) in the Casual Navigation Store: store.casualnavigation.com/
✩SUPPORTED BY PLUS MEMBERS✩
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Thank You to all Plus members on Patreon. Your support helps keep these videos freely accessible to everyone across social media.
✩WITH THANKS✩
➼ Images used under license from shutterstock.com
Workshop - Ico Marker / Shutterstock.com
✩DISCLAIMER✩
All content on this channel is provided for entertainment purposes only. Although every effort has been made to ensure the content is accurate and up to date, it remains the responsibility of the viewer to determine its accuracy and validity. The content should never be used to substitute professional advice or education. 
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Play World of Warships here: wo.ws/49P0qRW
Thank you World of Warships for sponsoring this video.
During registration use the promo code WARSHIPS to receive a huge starter pack including a bunch of Doubloons, Credits, Premium Account time, and a FREE ship after you complete 15 battles!
The promo code is only for new players who register for the first time on the Wargaming portal.
Super interesting, use the sponsor to help demonstrate a point in the video itself. You don't see that too often.
I'm so sick of seeing shills for this garbage. Especially when it's 25% of the video.
I don't mind the advertising tbh. Great for you to have a sponsor! You've definitely earned it.
Thanks for the great content, keep it up! 👍
I understand that bills have to be paid so I'm not mad. All I'll say as someone who played WoWS from 2015 until 2022 is, the game in its current state is more sad and depressing than it has ever been. Don't waste your time on it.
To be fair, I still really enjoy looking at my ships in port. On days I don't feel like playing the game, I just look at my ships for a while and then close the game.
Is it in a more depressing state than war thunder pre-boycott?
@@georgevasilopoulos5359 yeah I think so. Because protests have been tried in WoWS many times and are proven to have zero effect on WG.
it is an ok game to kill time
@@georgevasilopoulos5359as someone who’s played warthunder for over 4 years now, and was vocal during the boycott I can say that, to my knowledge, yes.
Like what was said, despite pushback and protest, wargaming doesn’t seem to be taking any action to change things.
At least with Gaijin, (warthunder game devs) they listened and now the game “overall” is so much better than what it used to be.
Bloody hell, that's mechanical PID Loop!
exactly! i wish he had mentioned that to confirm
Lot of weirdly negative comments here. I really enjoyed this video, just as I enjoy the non-military ones. Thank you for it and all the hard work you clearly put into these videos! Those animations don't look like they happen quickly!
Not Negative per se - but to talk about about Pearl Harbour and Torpedo bombers without talking about Taranto is missing key context and history,
@@MajesticDemonLord I feel like you could say the same for the Battle of Tsingtao, the first use of naval aircraft in warfare (either generally, or at least by the Japanese), or any number of the battles Japan was fighting in China that led up to how they conducted the attack on Pearl Harbour. This video had a very specific and select objective of what to discuss, and it did so effectively. Is more context always welcome? Sure, so long as you're also okay with a longer video. But I don't think it was vital to make the point this video was making.
@@BrandonF I see your point - but given the historical nature of this channel, without the context of the Japanese saw what the British had done and this was a major inspiration for Pearl Harbour - a casual viewer might get the wrong impression that this was solely a Japanese initiative.
IJN copied/inspired by Taranto is more myth than history
Some mention of the lessons the Japanese took from the British raid on Taranto may have been educational to viewers.
Exactly.
Sorry, had to spend half the video shilling a game made by some extremely controversial studio.
Yes I was peeved it wasn't mentioned. It's video's like this that distort history so people learn the wrong history !
wait, what does that have to do with world of warship???
Didn't realize before how that works, very informative!
I wonder why there are so many people in here butt hurt about either the Taranto raid(which has been mentioned in these very comments to be a different solution to what the Japanese came up with)or the fact the video has a sponsor(yes,from a bad game),like they've never seen a sponsor in a video before(like the many other bad games/products out there).
Japan had the best torpedo design in the world during WWII. The U.S. had the worst torpedo design in the world during the first year and a half or so of WWII. It took until mid 1943 for the U.S. Navy to finally have a reliable torpedo. The new U.S. torpedo was still not as good as Japan's, but it worked.
In the first year and a half of the war the American torpedo was almost perfectly reliable. Just not for the right task xD
It was the British sinking the Italian ships at Taranto that gave The IJN the idea
That's something I love about attacking something else. You have to learn how to defend against the same thing you are trying to be better. But, of course, by practising the defense, there could be a spy.
thanks that's what I was about to say. Doh !
Meanwhile US torpedos didn't even correctly work until like late 1943
The IJN was already planning an attack on Pearl Harbor before the British attack, and their method for redesigning the torpedoes was different than the British
That's racist
Fantastic video, I'm glad you're covering interesting naval topics like this as well as your usual naval content! So fascinating!
Excellent! What you describe with the vane control system is related to a technique called PID (acronym) to reduce over-compensation. Worth looking up on Wikipedia or some such.
A purely mechanical PID loop! Pre-computer engineering is amazing.
PID stands for Proportional-Integral-Derivative.
@@Inertia888 yes I think in this case it was only proportional and derivative but not integral. Still genius they came up with that tho.
Beautifully done sponsorship, using it to help illustrate the point.
The Japanese engineered a solution that works, and I love it. If America had tested these solutions, they would've had torpedo nets or something similar in place to stop the torpedoes short of their targets.
Odd that you “love it”. Both morally and how it turned out to be one of the worst mistakes in human history lol
@@yookalaylee2289 I love that the Japanese came up with a solution to a problem that actually works. Their decision to attack Pearl Harbor, not so much.
@@ColtonRMagby right……
@@yookalaylee2289 Morally?
@@dijoxx I assume you know the definition of
Thanks for your videos. I have very eclectic interests and encountered your channel about a month ago. Before then, I would have described myself and being interested in nearly everything except plants and boats. Now I'm interested in boats too.
Watch some video's with experts talking about bonsai tree repotting, which is very difficult but weirdly interesting. Same with companies replanting full sized tree, scooping them out of the ground with a huge machine and planting it somewhere else in an equally massive hole they dug beforehand, with the huge machine. Oddly satisfying to watch.
If you want to go down a rabbit hole, check out Post 10. Dude unclogging drains on flooded streets and it is instant satisfaction. Also check out letsdig18, who is in the earth moving business. Digs massive ponds, builds dams, fixes drainage issues and rescues stuck excavators. The last one went viral. It had sunk up to the rear deck, almost submerging it. So satisfying to see it get pulled out with nothing but expert skill.
Excellent analysis and video! Thanks for educating me!
Mechanical PID regulator. Cool!
I never knew about this i thought it was just normal torps.
Man one of your best videos, even the ad giving more context, great video!
I'd like to see a video about why the American torpedoes at the battle of Midway were all duds.
The BuOrd
Have you seen "Failure is like onions" by Drachinifel?
Striking head-on caused the firing pins to slam too quickly and jam. A glancing blow had a better chance at detonating because the warhead had more time to set up properly.
From watching Tora, Tora, Tora so many times I knew about this torpedo situation, and that British did the same trick against the Italians at Toranto.
Brilliant piece of tech.
Nobody can deny the Japanese were top of the torpedo game in the inter-war and early-mid WWII timeframe. Even after the US got the Mk14 to actually detonate it was still 2nd fiddle to the Longlance.
The Brits were doing pretty well also, the Mk VIII torpedo was effective and reliable.
Of course nothing rivalled the performance of the long lance, but on the other hand there were risks involved with carrying torpedoes stuffed full of pure oxygen.
'Torpedoes can't be used in shallow water. '
'Are you sure?'
Taking that second, deeper look at the problem is where true innovation begins.
Meat of the change described 3:42
2:05 anyone notice the white stripe on the tail of the plane there?
Not ecpecting everyone to know this but that's one of shokaku's birds.
So the japanese used the queen of torpedoes her will makes the torpedoes run true🤣🤣🤣
Before anyone says it. YES i know that the 5th carrier were not responsible for the bomb and torpedo damage the ships sustained they attacked the airfields im doing this for the funzies.
Could be worse though at least it isnt the typical red stripe that we see pretty much all the time. Which is akagi. Though who doesn't love akagi?
Isn't there also a component where the bomber needs 30 seconds to a minute of steady course in order to settle the torp gyros before the drop? One of the challenges the bombers faced in the attack was flying over the buildings and trying to find enough clean air above those turbulence-inducing structures during the run in.
Torp bombers at sea don't have such problems because wind over the open water tends to be much smoother.
This seems to be a Japanese equivalent to the RAF's Dam Busters
Love your math man.
Another great bit of info from will mckenzie
Awesome vid, had no idea 👌👌
It was the US picking that location that forced them to make the modifications to the torpedos
It's not believed the bomb actually hit in an engineering space adjacent to the powder magazines and the ensuing destruction ignited the magazine, rather than a direct magazine hit.
Very interesting.
I think the red line ending around 1:59 made it seem like the whole video was ending and it was all ad no substance, in reality it’s 60% substance 40% ad.
Interestingly they trained for this in Lake Ogawara, Misawa AB. Which is now one of the main SEAD locations for anti-SAM site activities of the US PACAF.
Why didn't the relise clamps let the nose go slightly after the tail?
The Japanese took note of how the British attacked the Italian fleet at Taranto which had a similar harbor. Unfortunately, the US didn't.
How do you illustrate your ships
Fine for the Tesco riff raff but at Waitrose they have Wager mercenaries to protect you.
The only problem with the WoW video is that the Barracudas didn't dive straight into the sea. Also remember that at Taranto the Swordfish could barely do 100 knots so much less energy.
Being sponsored by WoWS as if your fans aren’t already playing it! 😂
Why Iowas and not Standard Class models though?
Ive always wondered why most of my torpedoes fail 🤦♂️
Dude like 30% of your video is an advert.
Great R&D history. Thanks!
A lot of people like to talk about the long lance but Japanese aerial torpedoes were the most advanced at the start of the war. The US didn't catch up and exceed this until late 1944 to 1945 amd even then they didn't have the modification as standard unlike the Japanese.
Am I the only one that heard Fall out Boy in the background of the ad read?
With simple wood fins
I've played fair bit of world of warships but it just isn't fun. It's absurdly grindy and kills just aren't satisfying. Nothing feels like it has any punch behind it, which is extremely disappointing considering the caliber of weapons being used.
That’s the smoothest sponsorship segue I’ve ever seen!
Japanese engineering, some of the best there is.
5:20 Couldn't you just have dihedral fins?
Torpedo fins aren't providing lift so there's no corrective force, and if they were, the associated drag in water would be horrific.
Maybe breakaway wings would achieve both a parachute effect and help with stability, but it seems preferable to use one system for stability in all environments than two systems for different places.
OR you could release the torpedos while on an up/rising trajectory which would cause the torpedo to enter water with a very shallow angle and low speed - no modifications required on the torpedo. With both the change in aircraft release trajectory and torpedo modifications I bet they could have achieved less than 5 m of sinking below the water line.
Awesome to be graced with a vintage fighter pilot trainer! I'd have assumed that would just break the tail off, but talking to someone whose done it, screw the haters
That's the difference between a belly-flop and a clean headfirst dive into the water-- which one hurts less and is less likely to knock you askew?
and i think this game has grown from 40GB to >100GB so i needed to remove it to free up space😆
They flew Mitsubishi I drive Mitsubishi😅.
The title is confusing. Typo?
oppzs wrong video
MOFO MAKE MO
I guess bills have to be paid. This is clearly a paid for video as opposed to an integration
Ein Kommentar
Wow, a lot of this video was an advertisement.
That provided an animation of the topic
Free Hawaii!
Thanks for giving us the ad ticker bar for the "Sponsor". I understand your need for sponsorship, but for a dead end pay to win game, it's pointless.
Given how the US did everything it could to ensure that the Pearl Harbor attack would happen and blocked every attempt to prevent it, I wouldn't be the least surprised to learn that we also assisted in these torpedo improvements.
Sources? I mean other than your conspiracy-laden Swiss cheese brain?
😅😅😅
So true.
I feel bad for the people in the USN that were saying "yo pearl and panama arw vulnerable to air attack"
1:56 Skip the ad
World of warships is a drug.
interesting video, but tbh i prefer your videos about non-military stuff
This comment sponsored by Raid: Shadow Legends!
Noooo! You were the chosen one! The one large channel that provided such fantastic content on the CIVILIAN side of shipping! There is already so much content out there on the military side of things. I understand economic pressures and that my opinion as someone that enjoys your content for free isn't worth much, but I don't think this is the way for you.
You do understand that making one video about an historical event on it's "anniversary" doesn't mean this is a military channel now right? Also who gives a fuck they are weapon; it's still naval physics
@@Trisnice You are right my friend, I do understand that they can make whatever content they want to. My opinion is just one amongst thousands.
The Japanese did not invent this method of torpedo delivery.
The British Royal Navy developed it and that includes the use of the wooden fins to assist in the delivery. The development of this method by the Royal Navy was actually begun in 1938.
The raid on the Italian fleet at Taranto proved the method of delivery worked.
The Japanese Navy just made a few minor refinments and went from there. The Japanese Navy actual practiced the method in a bay in Japan with the same depth as Pearl Harbour.
The Germans also looked at this method of delivery after studying the effects of the Taranto raid.
I would like to suggest you do a lot more research on some of your subjects before making a video which does not cover the actual facts and history.
The history of the second world war was one my History Majors when I did my degree. I speciallized in the cause of the conflict as well as the naval side.
well said.
Considering that the plan to attack Pearl Harbour was in the works before Taranto and that others have mentioned that the solution the Japanese came up with is different to the British one,possibly with no knowledge at all on how the British did it,your bashing is nto exactly well placed.
Mind you,he did in fact cover the actual facts,because the numbers are still there,along with the method used,which is independent to the debatable backstory.
Some of y'all in here be treating this video like it has no educational purpose at all.
This is insufferable.
I know you need to pay bills. I get it. But A) this game sucks, B) you left out a lot of interesting information about the history and engineering of this and C) despite this video being essentially a 7 minute advert for the game, I still enjoyed what you did discuss. Can we maybe focus less on ad reads and more on interesting facts and physics and engineering and stuff?
planes in the sponsor is bad example, they tend to teleport, land or take of vertically (not the modern jets, mind you), fly through mountains or achieve 15km ranges on rockets because they are high up over mountain and the rocket's propellant or effective range/trajectory is not a factor in this arcade vegas' style game where you pick your seat and pull the level to see if you hit...
You used wrong pictures of ships for examples of the torpedoing and bombing are you should’ve done more research the example you use looks to be the Iowa class battleships when in fact there was modern dreadnoughts in Pearl Harbor
Honestly I think he knows but either can't be arsed and doesn't have time to make those details.
Nah, I´d Win
Would you have even made this if there was no game tie in? What even is your channel now than the advertising arm of that crap game.
Doubtful, because he left out a lot of interesting information on the subject. Basically, this was very shoehorned.
Yikes, I mean the video is 7 minutes long but yes let complain the author didn't include enough info on one of the most influential moments in world history. both comments reek of cope lol
I thought this was about how america bombed nordstream for a second
Too much of an ad. I wont be watching more of your videos.
Deceptive title for clicks is receptive. Bad. It's clearly not the EVs that are at fault, even from the description of events in this video, it's greedy companies not following safety procedures and letting an ice vehicle start a fire. The batteries actually don't contain all that much oxygen, and are significantly less likely to ignore than petrol our diesel tanks. In fact the EVs is a couple of those ships have been completely unburnt and still nearly salable. Don't believe the anti-ev lies: real world data shows very, very clearly that EVs are far safer than ice vehicles in terms of fire.