H1MIN: CAAT AND FOXER ACOUSTIC DECOYS
Ғылым және технология
During the Atlantic convoys of WWII supplying vital materials to Britain, Allied intelligence discovered the creation of a new German acoustic torpedo being used by U-boats. The British referred to them as GNATs. (German Naval Acoustic Torpedoes)
Acoustic decoys were derived from minesweeper pipe noisemakers and modified to deal with the new technological threat. The British FOXER, Canadian CAAT and U.S. FXR helped minimize the effectiveness of the GNAT.
Much research and intelligence was compiled trying to find the technical features of the G7es T4-5 and how to create countermeasures through to the end of the war. This 1946 U.S. Navy declassified report details some of those efforts.
OEG REPORT No. 51
ANTISUBMARINE WARFARE IN WORLD WAR II
Charles M. Sternhell and Alan M. Thorndike
www.ibiblio.org/hyperwar/USN/...
Пікірлер: 130
Imagine spending months, potentially years, developing one of if not the first guided weapon, and some Canuck goes "yeah but if I bang these sticks together"
@user-cl4kc4st7z
Жыл бұрын
That was war of brains (if not mean ussr). American radio guided kamikaze planes. German guided bombs. British live computer (genuine invention to analyse HUGE amount of information from primitive British 2WW radars). Japanese inventions,...
@cyroostetherington3335
Жыл бұрын
Anglosphere ingenuity in a nutshell "Hey lets bang sticks together and build this in our shed so we will win the war"
@bagustesa
Жыл бұрын
remember, the brits considers hammer as asw weapon
@snailboi6902
Жыл бұрын
@@bagustesa for some reason upon seeing hammer and asw in the same sentence i had this image of thor launching mjolnir at random bits of water in hopes of nailing a submarine
@danielbriones2938
Жыл бұрын
@@bagustesa Then there are the Americans who used potatoes for ASW
These videos are the definition of quality over quantity.
@user-op8fg3ny3j
Жыл бұрын
How does he make them?
@bruh4071
Жыл бұрын
@@user-op8fg3ny3j Probably uses blender or sumthin lol idk
@pinngg6907
Жыл бұрын
@@user-op8fg3ny3j blender or other 3d modeling tool
@pen5887
Жыл бұрын
Yes bro
Man, its incredible how relatively simple the mechanisms are for both the torpedo and the decoys. No microprocessors or anything, just probably simple circuit design.
@Eagle-od1im
Жыл бұрын
Yeah it’s impressive to see how complex they could get with the technology they had at the time
@H1MIN
Жыл бұрын
Agreed, like the Ford fire control on the Iowa class battleships or the Norden bombsights, it was all math, mechanical parts and analog.
@havardhovdet9217
Жыл бұрын
The noisemakers were quite simple devices, but obviously as the electronics were in a pretty premature state during WW2 - pre transistors, the acoustic seekers in the torpedoes were far from "simple" and consisted of several modules with discrete components, using vacuumtubes as active components. Today you could achieve the same result with software and a programable microcomputer. Ie: Your conclusion is totally backwards...
@axeppo
Жыл бұрын
@@H1MIN For the love of god make a video about those two!
It's getting out of hand Now there are two minutes of them
Those last 20 seconds were some unexpectedly stressing torpedo maneuvers around a stick banging machine.
I've read military history for nearly 50 years but you STILL manage to impart something to me in every video you produce that I never knew before. I've known about the foxer and allied variants for decades but strangely NEVER stumbled on an image of one. You provide not only an image, but its a detailed fully working graphic of the device with sound !!! German scientists further refined the T5 "Zaunkonig" acoustic with the T11 "Zaunkonig II" to counter "Foxer" deployment by improving the internal audio baffles surrounding the transducers to further filter out extraneous audio sources, and then programmed the torpedoes to execute a programmed tight circular run when the sound intensity picked up by the transducers reached a certain level. This meant that as the torpedo approached the sound source when the tight circular run pattern was triggered at the preset sound intensity if the sound source was a "foxer" then the torpedo would circle harmlessly around it without detonating due to the foxer's diminutive size, but as it circled it would then pick up the next sound source (more often than not, the escort towing the foxer) and head to that, if that sound source was indeed a ship then the torpedo would still run its preset circle at the trigger point but the length of the ship meant that the torpedo would circle into the hull of the ship (or under its keel in the case of a magnetic detonator), and explode. Concise, eloquent, masterful. The quality of your graphic (and also audio) productions are superior to ANYTHING I've seen on TV, EVER. Yours is the ONLY YT channel that I wait with bated breath for the next episode. Thank you for your continued efforts.
@H1MIN
Жыл бұрын
There seems to be limited information to be found, especially on the early versions of FOXER. However, there is an improved version of CAAT which is still in the Squid handling room of the HCMS Haida. If anyone knows of others, it is interesting to see the variants. Thank you, your comments are highly appreciated and insightful.
There's so many WW2 innovations I've never heard of, thanks for bringing the light on this one ❤
Honey, get the fine china Military History in a Minute posted again
@user-op8fg3ny3j
Жыл бұрын
When we needed him the most
Wake up homies, M1 posted a new video
@user-op8fg3ny3j
Жыл бұрын
Ayo
Amazing. I never would've known these existed without your channel.
Just an idea… A video on the turret gunner station sights used by B-29 crews would be really cool to see! How those things worked was incredible, and I bet your animation would be even better!
Informative and straight to the point! Amazing video as always
The animation and sound design are truly excellent.
The King is back!
Who would win Sophisticated German torpedo Or Loud nosy boy
Yes! My favorite KZread channel
A simple solution for a complex (and lethal) problem...
The quality of these animations is beyond
Yo I've been learning about WW2 for 20+ years now and this is the first time I've ever heard of these devices used. Bravo on the video!
A concise yet very informative video, well done!
Amazing video as always, leaving this for the algorithm.
That animation at the end is so erie. well done, chap!
"20 kHz over the sound of the propeller" Did you mean 20 dB? I would think volume would be more important in attracting danger seals than frequency.
@WolfeSaber9933
Жыл бұрын
If too loud, the U-boat can hunt, and if new torpedos were made to track at a unique frequency, then past decoys would fail all the time.
@lesthodson2802
Жыл бұрын
@@icomitsudoku8611 Yes, that is the issue I am addressing.
@slashplane
Жыл бұрын
Just did some quick research, something about Canada Naval Research Establishment findings that 20khz band was of interest regarding german wake homing torpedoes. So guessing the CAAT was designed to transmit at 20KHZ.
@slashplane
Жыл бұрын
cradpdf.drdc-rddc.gc.ca/PDFS/unc313/p807003_A1b.pdf
@DocSmouse
Жыл бұрын
@@lesthodson2802 Higher kHz noise is more transmissible through water (i.e. audible from longer distances), so if the propellers and the decoys are around the same decibel values respectively, the passive sensors on the torpedo will pick up on the decoy first.
The animations starting at 0:38 are just ... *chefskiss*
Super short but super informative video again. 👍 Thank you for the GREAT content.
Im not sure what it is exactly...but these videos are a work of art on its own
Amazing quality, I really love the sound design, how to you two do the sound and visuals for these videos?
classic cases of out of the box thinking , defeating overthinking
nice to see your video again
The ending is epic. High quality video.
As always from this channel another fantastic video
Very nice, crazy stuff, decoy symbals, keep up
Nice job, another great video. Keep it up!
Basically that dummy thicc clapping ass meme is a real life saving thing
Excellent presentation. Thanks.
Wow!! I have never heard about this before! Super interesting and an absolutely SUPERB video!! WOW!!
So cool!
Excellent
outstanding animation.
Very intersting.
Sick vid as always
Well done, thank you.
RIP decoy #85902 Press F to pay respect.
Very impressive animation and texturing work.
*Gets dressed up* Wife:wat the ocassion Me:MH1M just uploaded
Ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding ding
@Krzysztof_z_Bagien
Жыл бұрын
thank you for your accurate and true description of this device.
Yes I love these videos everytine
I love uboat related videos
The animation. I love that it's all original
“Comandont this is the ninth torpedo and we failed to sink a single ship what are they using?” Some clicky sticks:
The solution for this is so very WW2-era British, right up there with the light-cannon tank, the oil drum on rocket wheels and the minesweeper that used a big wire to detonate those funky German mines
Very nice
That's a brilliant idea
2 minutes of quantity, 1 month of quality
hes back!
Huh…so that’s what these things are when I was assembling battleship models. I thought they were deployable acoustic devices to help detect subs, but now it makes so much sense that large warships like battleships or carriers would have these.
@xxnightdriverxx9576
Жыл бұрын
larger warships usually did not have them because their louder propeller sounds could not be overwritten that easily. As mentioned in the video, these systems were for convoys, i.e. freighters and small escord ships up to the size of destroyers. Since I am building ship models as well, I am 95% sure that the things you are referring to are Paravanes: en.wikipedia.org/wiki/Paravane_(weapon) These are basically a mine clearing system that can be deployed from the bow of a ship, and either cut loose naval mines which then float to the surface, or let them explode on contact.
@Luis-be9mi
Жыл бұрын
@@xxnightdriverxx9576 okay I stand corrected, learn something new everyday!
this is so cool
I wish World of Warships use this method of guiding acoustic torpedoes
I had no idea these existed nice one
Nice video bro
Hello again animator
@user-op8fg3ny3j
Жыл бұрын
How does he animate it?
@GustavAhlbrand
Жыл бұрын
@@user-op8fg3ny3j blender i would assume
Ussr: this is too expensive, just tie a rope to Ivan and give him two metal poles!
It's like warships trying to fish salmons
Imagine getting beaten by a Cranking Pipes for using Acoustic Torpedo
That was siiickkkkk
Con, Sonar, Noisemaker bearing 153. Con, Sonar, Weapon Countermeasure Homing.
how did the control system of the torpedo work without a cimputer? :D
10-hour CAAT loop when?
nive vid as always
Can you please do the dambusters and the dambuster?
Would be cool if you make a video about the Mark 37 gun directors
Quality over quantity
Who would win? An advanced anti ship weapon that can easily destroy fast destroyers. Two metal sticks banging together.
The allies had some acoustic torpedoes too like air dropped ones
@walterkronkitesleftshoe6684
Жыл бұрын
Indeed, it was the US "Mk24 mine" which had the allied codename "fido". As you say it was an air-dropped acoustic homing torpedo, but was designated as a "mine" as a way of trying to disguise the nature of the new weapon which was responsible for a fair number of u-boat sinkings from early 1943 onwards, where the tactic was to drop the mine in the wake of a submarine only once it had submerged for the reasons that the allies wanted to keep the weapon secret from nazi eyes, and a surfaced submarine could easily outrun the "mine". The electric motor which drove the "mine" at a "blistering" speed of 12 knots was actually a standard washing machine motor used by the "General Electric" company in their washing machines. The low speed wasn't such a problem as underwater the best speed a submarine could make underwater was between 6-8 knots.
LOSAT video plz
Correct designation for the german acoustic-seeking torpedoes fielded during WW2 are G7es(TIV) "Falke", G7es(TV) "Zaunkönig" and G7es(TXI) "Zaunkönig II". Only the TV torpedo got the british codename "GNAT". Although the content in general is quite correct, the illustrations isn't as much. No german torpedo could make those narrow turns, and the passive hydrophones in the warhead had a quite narrow field of detection (wider for the earlier versions used in the TIV, further improved with the TV and TXI torpedoes - the latter was also way better equipped with filters to discriminate the sound of the allied noisemakers).
wow the outro tho wow
Damn, didn't know homing torpedoes were a thing back then, no wonder the hitrate was high. Also is that really how quick the torpedo steers or just for dramatic purposes?
@H1MIN
Жыл бұрын
No, the torpedoes were not that fast or nimble. They had limited turning radiuses and the speeds were slow but much faster than convoy ships.
@piscessoedroen
Жыл бұрын
@@H1MIN thanks! It should've been obvious but i just had to confirm it
Leaving a comment here to feed the algorithm
Not just Ordinary METAL BAR
Can you guys do the mk24 FIDO torpedo
AYOO HYPEE
I think that's a good comment section for a discussion I had with some friends: If we had a "total war" today, like WWII, excluding atomic weapons being used, what kind of innovation that would bring us? Would we speed up our way to singularity or something?
First version of basic artificial intelligence guidance system. A.I.
🥇
when do i get to play the MHiaM video game ? where everything you've modeled is also playable? ty just let me know when its ready
Who would win? Sophisticated German engineered torpedo Or One Clanky BOI
Germans: We have developed a torpedoe tht follows sound! Sure hit every time! Allies: B̶͓̗̎A̴̤̗͋Á̶̼͋ͅÅ̴̭̖̅Ṟ̴̾Ŕ̴̪͜S̴̹̍̓
It kind of looks like a razor blade.
Holy shit no way.
First generation noisemakers
Wiii new video
Sounds seekers
water 😀
You take too long to post a video, I really like your videos, but you gotta make them more frequent
Ww2 trolling be like
ROLF
These videos are the definition of quality over quantity.