The Weird Reason Why US Hide the Propeller of its Nuclear Submarines
Вставка
- Опубліковано 16 лис 2022
- Welcome back to the Fluctus Channel for a feature on the history of submarines and why it is important to cover submarine propellers.
Fluctus is a website and UA-cam channel dedicated to sea geeks. Whenever you are curious or an incorrigible lover of this mysterious world, our videos are made for you !
We publish 3 videos a week on our UA-cam channel and many more articles on our website.
Feel free to subscribe to not miss any of our updates and visit our website to discover additional content.
Don’t forget to follow us on twitter:
/ fluctusofficial
Please keep the comments section respectful. Any spam, insults or troll will be deleted.
To contact us, make sure to use our email in the about section of this channel.
Back in '77 when I interviewed for an engineering position with Electric Boat in Groton, the subs under construction all had shrouds over their props. The guys interviewing me freely said the prop designs were secret, and that the shrouds were there simply to help thwart surveillance, by satellite or otherwise. No big mystery why they're there.
GDEB Quincy 1966-1969
Only china is stealing and copying other`s technology!
exactly. this video was 14 mins of not explaining anything relevant
When a propeller is used it is still shrowded for this exact reason. We don't want other countries to know how we deal with cavitation. Even the number of blades is classified.
Nuclear submarines typically have 7-bladed props.
This is the most content-free video on UA-cam. Not once did you explore the "weird reason" the US navy does not display submarine propellers openly.
No, our navy does not hide propellers to protect them from harm, so much as to keep Russian and Chinese intelligence from direct observation of the submarine's propulsion design-- type of propeller and thruster assembly.
The video was so superficial, we decided not to subscribe.
Also that they aren't so much " painted " as they have a rubberized coating for stealth enhancement and that rust hasn't been an issue since WWII.
I thought this was so bad i actually unsubscribed...
Took the words right out of my mouth.........in the late '70' s, I owned a aerospace mfg co, with a pretty good level of clearance and was privy to info concerning sub screws.....the most hilarious was an incident whereas the Swedes got a hold of some info concerning the U.S. sub screws which eventually made its way to the Russians......evidently, we had 5th axis turning programs, allowing us to create screws that were virtually silent...while the foreigners had no idea how to create a screw this way. The big secret was the computer program that allowed the processing of the screw to make it "silent"....of course, everyone in the industry, at that level of clearance, was aware of the process, and had a good laugh that the enemy had no idea on how to do this. This is the reason, along with other techs we have, that give me a laugh when everyone acts like Russia is a threat...I can tell you, their not. Talking with some of the Sonar Techs, on subs, say that you can hear a Russian sub @ about 20 miles, because their so noisy, it sounds like a trash truck. BTW, isn't the Virginia class the first ones to use the Red October, water propulsion system, that we finally developed?? I've seen uncovered sterns on a sub revealing this type of system......
Thanks - you saved me a comment.
Bob, surely you don't want us to splay our technologies to foreign governments! (US Navy 1962-5 active 75-85 reserves)
It's not a weird reason, it's a valid, good reason- the Russians have never been able to duplicate our almost silent props.
My thoughts exactly.
Right!
Cover those props up to protect from spies taking photographs (stealthily.)
I'm with ya
OPSEC is important. Loose lips sink ships.
They are propulsers, a type of pump jet, not propellers, first used by the USN on the seawolf class.
Im a retired Marine from the nam days.
I was on a Med cruise with the 6th Fleet in 1972. I was on the LPD12 USS Shreveport. Standing on the helo deck near the fantail,I saw a small trailing disturbance in the water about a hundred yards off our starboard side.I asked the sailor on the catwalk with headphones on what it was. He said it was a Soviet subs periscope.Been hanging around us for 3 days. It was kinda cool in a way...two superpowers engaged in cat and mouse,LOL.Just glad it was each of our ships involved in maneuvers rather than hunter killer attacks.
I remember my brother telling me the story how the Russians were aiming their attack radars on their Navy ship and all the crew did was write down all the free information they received.
Thank you! That's more interesting information than we got in this entire video!
Unfortunately 99% of these morons have never even thought about joining the military. They're either too young, Too stupid or too afraid. I could never spend time in a submarine. Fantastic offensive vehicle, stealthy, able to take out any City in 8 minutes or less. LT Rob United States Air Force retired.
@@Mr.Robert1 Nailed it brother!!
I was in Venice Italy in late summer of 1972 and woke up one morning to the sound of helicopters... the helicopter carrier Iwo Jima and its attending ships were anchored in the Venetian waters.
Sorry, the Turtle was deployed in New York Harbor. Developed in New Haven, it was launched to attack the flag ship of Admiral Howe's armada as it lay off the Brooklyn and Manhattan coasts, near Governor's Island. Though successfully able to submerge and approach the ship undetected, 2 errors foiled a successful attack. First, the timing resulted in launching against a strong tide. Second, the boring rod that was supposed to punch into oak, where a 'torpedo' would be attached to the ship, instead it struck either copper plating of the hull or iron plates near the rudder-and was unable to penetrate. Sgt. Ezra Lee, the pilot was exhausted and possibly suffering from CO2 toxicity on his return trip and was almost captured by British marines-save for covering fire from the Manhattan shoreline.
I concur. 👍🇺🇸
The amount of supercomputer design time dedicated to submarine propeller design is astronomical! The electric bill alone would sink small country economies.
I didn't know this. Too bad the video missed putting that in.
It's big in research development and construction. I understand that your exaggerating to get your point across.
Funny.
I know the reason the props are covered but if someone watched this video they would not know the reason since you missed it badly.....
I never knew we had so many Submarine Experts on UA-cam. HAHAHAHAHA !!!
There isn't, most comments are closet "experts".
@@frankrice6695
That would be nice.
@@frankrice6695
How are the closed Frank Rice?
I'm retired from the Airforce. I have been in submarines I find them uncomfortable that's just me. I couldn't do it.
There was little to no info about the screw, propellers are on planes.
I wonder if we'll see magnetic propulsion or articulated swimming tails on submarines. I guess as drones-subs become more feasible and sophisticated, the naturalistic design process using supercomputers will produce really weird looking craft in future.
Nothing weird about wanting to protect top secret propeller designs.
I worked at an aluminum foundry doing maintenance work, they were building propeller housings for Navy AI subs. We were all required to turn in all phones and electronic devices so we couldn’t take pictures.
Also means, you probably should not be mentioning your involvement/that it ever happened
@@chain3519 It's not exactly a secret that these things are being made. The specs are.
@@keilet Yes, I can agree with you on this.
But, @chain 3519, was more cautious for the OPSEC aspect and not wanting you to be the target of HUMINT recruitment(?) for some money and other 'tradeoff' benefits(?)
@@keilet What the other person said. Knowing who was working on it, where, or even when are all leverage that can be used to social engineer people
I was on a tour of Newport News/Hampton Roads area. It was a boat tour. Fascinating! My dad and I were on a three day motorcycle trip from PA through MD and VA and back.
On the boat tour, we saw all the major shipyards and the largest gantry cranes in the world. This was in 1987 or so when we still used 35mm film.
The strangest thing in my life took place that day. The tour guide on the microphone pointed out a nuke sub (out of the water) that had a visible propeller which he said was rare.
So, I took a few photos of an unshrouded sub and propeller of a nuke sub that was out of the water. It was at some distance. Not close and with a cheap Olympus compact camera with a wide angle lens.
When I went to pick up my film, THESE FRAMES DID NOT EXIST!! I forget what the negatives looked like. There were none of the sub. No photos of the sub at ALL. Everything else was normal. All other photos came out and were printed.
How did 1987 tech achieve that??? Must have been some kind of alien tech scrambler field around the sub. Whom knows? I cant explain that to this day.
Well, being retired from the USN submarine force, they used to tell us the number of blades and shape of them on the screw was classified CONFIDENTIAL. Well, there were seven blades, all shaped like sickles. Plenty of pics are available online of them today. The screw has the potential to make a lot of racket. Knowing the shape and blade number would give someone an idea what the sonar signature would be.
Fica calado!! Ou melhor neste caso não compartilhar o que sabes. Utilizar a boca somente para comer e beber somente é o mais importante utilizar os ouvidos para ouvir poderá salvar a tua vida e os teus olhos te guiarão para não caires.
Olho vivo pé ligeiro um abraço de Portugal felicidades.
Exactly. From Ex- Royal Australian Navy stoker. 👍👍
@@450tank Yeah. You know Tank, those sonar technicians (STS) were SO good, these guys could often get a sonar contact down to an individual vessel based on his sounds. Every vessel will have variations in its sound signature from what I remember.
@@robr2389 I was on DE 53, HMAS Torrens. We had the Agouti compressed air system, compressed air pumped through the edge of the blades on both propellors to mask / change the ship's underwater signature. I'm sure other countries use this too, or similar system.
@@450tank That is WAY interesting, Tank. I have never heard of a system like that before. It does surely make sense. Great way to mask and/or change your sound. Thanks for the info!!
The filler to content ratio of this video is staggering. "On the ship, crew members often keep busy with work. Crew members must be ready to help when needed. Many crew members have described the submarine as cramped". Waste of time, avoid.
Your audio editor pumps up the bass volume to a ridiculous level.
Not weird..........We hide as much technology as possible......Keeps any enemy from having equal design(s)..........It is extremely important we keep our troops better trained/equipped and our technology more advanced.....
I was an Apprentice at General Dynamics Electric Boat in Quincy Mass . Each prop has a distinct sound signature that can be heard under water for thousands of miles, once that sound was confirmed, the enemy could track the subs movements. ( not to be out done we listed to them also from a Navy Base just North of Bar Harbor in Maine)
I was in antisubmarine warefare and did a few thousand hours in P-3s we knew every sub leaving Vladovostok and Petrovostok probably mispelled them by sound and electromagnetic signatures in the the earths magnetic bands, which are mapped all the time the US blue and gold crews are no different
Not just the US, most countries do it. It’s not weird reason at all.
Do you like stock footage of submarines? Well god-damn you’re in the right place
When I was stationed on Resolute drydock in Norfolk we covered the screws up when Eastern Block ships were allowed access to the port of Hampton Rhoads
The design of the screw is so secret that only a handful of people ever see them over the life span of the submarine
I came back to say that you should have just made it a Rick Roll
Super vid. Lost points on prop & refit issues. Had many friends talk about general stuff regarding subs. The responsibility of a particular rank in subs out weighs the equivalent in other branches.
Go Dolphins, Go Bluejackets! 👍👍🇺🇸
Didn’t realize they were painted. I know in the past they were typically coated in a synthetic rubber type material for sound reduction.
And during the sea trials and other exercises you best believe a Russian sub(s) and others were lurking and listening. Collecting every sound made by our subs, cataloging those sounds for future use. We do the same to them. Cat and mouse.
Very~cool ~ documentary~well~done,
God~bless you all.🙏.
Matatan.∆🐎∆.
Ribirin.^®^.
Period.✓
Thanks, Mind boggling submarine technologies and cost, Several Billion each.. But a needed tool.
Most countries do it. It’s not weird reason at all 😘😘
Pretty simple mate, and if you can’t quickly grasp it, then you need to go sell ice cream or something. Propeller design is critical to the efficient and quiet running of any submarine! Now, how hard was that?
ASW operator, I could tell you where a submarine was built if I got the acoustic signature correct. Every prop has unique acoustic characteristics due to manufacturing anomalies. And then there's FIR, and plant pump noise, and singing, lol.
During the Clinton Administration, we sold metal surface grinding technology to the Japanese Toshiba Corporation. The technology was used to “super finish” the metal surfaces of ship propellers making them more efficient and quieter. The Japanese sold the technology to the Russians. The Russians used the technology on their warship propellers, particularly their submarines and the Russian submarines became vastly quieter, making tracking them difficult. I read, at the time, the Russian submarines were “easy” to follow/locate because of the noise caused by imperfections on their submarine propellers.
Bill was too "busy" with Monica to be concerned about such trivial manners as espionage.
i was stationed at sub base pearl many decades ago, we never covered props back in those days.
It´s the private part...
The US Navy has attached a toroidal propeller To one of its subs. It is the first time such a propeller has been installed on a submarine. These props have an advantage in that they don't produce any cavitation, which allows it to run much more silently, and with the expenditure of a lot less energy. It also crates more thrust, making it much faster. This may in future require a redesign of submarines in order to reduce stresses put on the subs at the greatly increased speeds.
yupp, gatekeeping efficiency is wild but they would be the first to do that I'm sure.
la strana ragione perchè nessuno sa dove è nata quella tecnologia di quelle eliche a bassa rumorosità e cavitazione e alto rendimento, Italia vicino a Venezia !
Thanks for your sharing
Ex Sonar Technician here. We’re trained in school how to identify submarines off of their acoustic signatures. Every submarine in the world has identifying tonals. Once you start identifying them you plug them into different mathematical formulas that can help you determine # of blades, and in turn the blade rate, which helps you figure out propeller shaft rate, leading to cylinder firing rate, then to engine firing rate, now we’re working out the speed based off of those numbers. You only need a little bit of information before you can start plugging in the numbers in order to classify a sub. Once you’ve got it classified you know all of its capabilities and operational weaknesses. It makes sense why we’d hide the props.
The less you know about a sub the better. Especially when it comes to the number of blades. I can’t tell you how much just knowing the number of blades helps us with identifying it. It’s probably one of the biggest cause you can give away. So it makes a whole lot of sense as to why they’re cover it up. The rest of the sub isn’t much of a secret. We don’t care if the see that part. Those blades are above top secret though.
Could the Feds accuse you of disclosing classified info?
I for one don't think that the reason is weird at all. Submarines are said to be heard and not seen.When propellers operate in water they cavitate and that makes noise.
Because the enemies won't know what props are being used on ships. They can use the shapes to determine how quiet a ship is
ผมรักอเมริกาครับ👍
Greetings from Malaysia 🇲🇾
It’s a Flux Capacitor 😂
I'd subscribe if you actually gave the information in the blurb. But you don't, so I won't.
That's 15 min of my life that I won't get back.
flowing like a volcano for sure with the info. love it. clearly a professional production team
Except for all of the inaccuracies. For instance: They said that submarines are hauled onto "dry land" A dry dock is not land. And they said that a submarine would "set sail". A Navy ship hasn't used sails for over 150 years. There were so many stupid comments I couldn't watch until the end.
@@DeadEyeDave
Please, don't be so sensitive. It's only a UA-cam video. What do you want top secret material?
how come no one goes under to film and take pictures of the propulsion system...i did it with two buddies when they launched a French nuke sub in Brest (France) in 2014..nothing to it..militaty guys never saw us..,we were in the water and swam on location 3 hours before launch time with our lobster fishing gear..
most of the time, the sonar on those things have enough decibels to rupture organs if someone was close enough to take photos of it underwater
Screws. They’re called screws. Ships have screws. Planes have propellers. Little boats have props. Ships have Screws.
Somebody tell me where you get this cool music from please answer
There are 2 huge copy machines, China and Russia, that is what we are afraid of.
🌳🌿🌲 Good Job🌵🌴🌾
Submarines are like whales and airplanes are like birds
Even racing teams hide their propellers.For subs they become top secret.Not only for speed performance but cavitation performance.Cavitation sound is a dead give away for sub
Kindly make a video of IAC Vikrant of India.
A matter of survival really...
You know the propeller design you can figure out its hydrodynamic properties and acoustics.
That's it, the enemy can tune in their sonar and train it's operators ears to search for it and you're as good as dead
Reverse engineering can recreate the prop and then tune sonar equipment to isolate the sound.
Boy I recognise some of those shipyard scenes.
Thanks Bob g
Hah! Sissies. We had to pull our torpedo tube doors open and push shut.
the turtle was used by continental army to get closed to British frigates and dig a hole under the bowl and place a explosive under the ship, but unfortunately the British ships bowls are covered with copper sheets and whenever they come close to it and dig a hole it took them to long and the explosive explodes inside the turtle! the continental army abandoned the idea of that submarine.. lol
Elke aandrijf - schroef heeft zijn unieke geluids - profiel ..... aan de hand hiervan is de duikboot van veraf te herkennen .... Maar aan de hand van het uiterlijk ook vooraf te voorspellen en dat wil je niet bekend maken .....
Yeah we know we know every idiot here has watched submarine movies
The dialogue in this video gives me middle schooler making the font bigger and adjusting the margins so they meet the length requirement. 🙄
Because it is the propeller that allows these submarines to be silent, so its design is secret.
I gave this video a thumbs down, because I have noticed that it is put together in a way, that lengthens the length, yet gives no more information.
You think it's weird to keep the design secret? Lmao
I watched it twice and didn't find the answer. Could somebody please point the part of the video where the propeller's design secrecy is mentioned?
if you know the propulsors shape then you can know the sound signature of the boat hence it is kept secret
@@pezza4709
Basic common sense he may even know the answer I think he's trying to point fingers at the video for not stating the obvious
I was in the Navy 82 to 88 VS-41 and VS-33 and worked at Puget Sound Naval Shipyard after and the reason is we don't want other countries taking photos of this because our subs are so quite..
Interesting to see life inside modern sub....and the docking ops. I noticed only one woman aboard. Makes me wonder what duty I would choose if I was there.
The pizza looked undercooked!
You don’t really get to pick…also, subs are known to have some of the best chow in the US military…
This doesn't have much to do with propellers.
So you want to find out what the propeller effects resemble ha, HA .. a side ways rotating Whale's tail Fluke. There you got the information you need. 👍
The reason they cover the propellers isn't weird, the configuration of the quite running props is classified, it's just that simple.
The number of people who aren’t capable of spelling “quiET” on this comment section is quite sad!
@@jessehachey2732 Really Jesse to criticize a "senior moment" fumble of the fingers, might be sadder still, remember, if you never make a mistake, not likely, then and only then are you entitled to criticize.
You forgot to mention the Henley . Do you know what that was .??
All of those guys were wearing their anti flash hoods over top of their jackets. In the Canadian Navy they must be tucked into the jacket so they don't blow up exposing your neck to burns.
Without watching it. If you know the type of prop you can figure its sound pattern in the water and then you will know what sub you are tracking.
How do they cool the reactor when the sub is in dry dock?
Without even looking at the video I can guess because its a military secret, maybe why their submarines are quiet or something.
I wanted to know more about the propeller........ ???
"above-water ships" You mean, surface ships.
3:30 just saved you some time
9:05 That's a Boeing AGM-84D Harpoon anti-ship missile. Being loaded into a torpedo tube???"Submarines (the UGM-84, fitted with a solid-fuel rocket booster and encapsulated in a container to enable submerged launch through a torpedo tube." Wikipedia
14 minutes of my life that I will never get back.
"LIFE" is a one way journey to the end RAIN or SHINE.
This is the most long and drawn out video ive ever seen
If you know the number of blades you can identify the frequency of the prop
Yeah there are things even Citizens got no business looking at.
The crews "may" perform various drills? No, they will perform drills.
The Russians have a Caterpillar drive...Like in the movie The hunt for Red October
Tamaño y forma se puede calcular aproximadamente los nudos del submarino
I am wondering what happens to all the stacks where the submariners get into the submarine
Easy, because it's design is top secret! The propellers design to not make detection easy!
I bet the Chinese know what it looks like. When the submarine goes through the Panama Canal which is now run by the Chinese one would expect they get a good picture of the exterior.
We probably sent them the photos and drawings of how to build it.
Not true, the canal is run by the Panamanian government, and the canal is not deep enough to handle an American nuclear submarine. That technology is protected
Bill Clinton sold sub secrets about 30 years ago to the Chinese.
Because they are classified to protect our acoustic profiles which are better than anyone else’s submarines.....
Why hide the props on a submarine? Duh!! Helps prevent others from copying a very efficient design.
well not just the US, most countries do this too.
No tiene nada de extraño: el principal objetivo de los submarinos es la navegación silenciosa. Y la cavitación producida por la hélice es una de la mayores fuentes de ruido, sobre todo a según que revoluciones. Por tanto , la investigación de ingeniería naval se centra en conseguir una hélice lo mas silenciosa posible. Lógicamente su diseño y construcción es secreto militar, y no conviene evidentemente exhibirla.
And your best friend during deployment is your sea sock but careful you may grow another toenail
Why is there a 30 second pause in between each sentence
No shit, the first submarine wasn’t like the ones from today ? Shocking news 🤦♂️🤦♂️
Yeah already knew this
The newest propeller is not a propeller at all that’s what they call a pump jet engine system together is it as a mechanism for this blasting water out the back of the ship through two through direct through the directional shape nozzles it’s not a propeller at all
We now know that it is just a toroidal propeller.
This is like listening to a third grade class story of a submarine . It is a joke.
5:58 It's a boat, not a ship. So, what is "The Weird Reason Why US Hide the Propeller of its Nuclear Submarines"
They use mermaids as propulsion, but don't tell anyone.