Why Don't US Submarines TIP Over in MONSTER WAVES? 

US Subs are NOT double hulled. And they are affected by weather above depending on their depth. And they certainly "rock and roll" on the surface.

@Navy Productions Thank you! 👍🏼

Ballest... USS DIXON AS-37 79-81 Diego Garcia 81 tending Submarines and Surface warcrafraft during the Iranian hostage issue. 82 onboard the USS FORRESTAL CV-59 Mediterranean/Indian Ocean deployment Average loss of life per six month deployment on carriers was five souls. 82-Med/IO We lost seven souls. Until Valhalla Brother's We have the watch.

"These machines are amazing! Such incredible engineering feats!"

the engineers who made it are very talented and very skilled ,

Awesome engineering!

There are two type of Tanks aboard a Submarine: Ballast and Trim. The MBTs (Main Ballast Tanks are located in the superstructure between pressure hull or people tank) and the outer skin that forms the hydrodynamic shape of the Submarine. The MBT are grouped forward and aft. There are valves located at the top of the MBTs called MBT Vent Valves. They are opened to allow air to escape the MBTs whilst water is filling the Tanks from the open bottom of the Tanks when the Boat dives. Once the air has been expelled the MBT Vent Valves are closed in readiness to surface when needed. Trim tanks are located forward & aft and throughout the Boat to adjust the level the Boat and to either increase or decrease the buoyancy to allow for neutral buoyancy or hover at a certain depth. When the Boat is ready to surface air is released into the MBTs from compressed bottles of air located in the MBTs which forces the water out the bottom of the open MBTs lightening the Boat, thus bringing the it to the surface. There are grates at the MBT opening that prevent sea life and debris from entering the MBTs. That is how a Submarine dives, surfaces, maintains level, and can operate ate certain depths without sinking to the bottom.

To get back to the subject ‘happiness is 500 feet in a force 10’

Cool post!

99% of the time subs are underwater so surface conditions are not an issue, HOWEVER… I was on the Uss Georgia when there was a rare condition where we had to stay on the surface during a hurricane (a small one thankfully) and trust me… we were taking rolls like it was going out of style. Unfortunately I did not get seasick and because most submariners are not used to rough weather and do! I and a couple of others stood almost continuous watches for a couple of days while everyone else was sick in their racks! I was a sonarman btw, so watching standing in a hurricane on the surface does not require any actual effort!

Nice

Oh they do roll, rolled 50 degrees either side once. That's when we found we weren't as secured for sea as we thought we were. Several shots of a guy checking the H2 and CO burner. min 4.35 + 7.30

Wonderful video!!!

I read on older diesel powered units they mixed water & diesel fuel in the same tank???

On the question of depth control at depth, I would say yes as you need moe air being pumped into the balast tanks at deeper depths simply because of the pressure of the water. For example, , ships at 100 meters are at 10.4 atmospheres of pressure while ships at 200 meters at at 20.8 atmospheres of pressure.

I have always been interested in submarines.

Try retractable fins at predetermined space measures made to protrude at such turbulent times .

Short answer, they don’t tip over because their center of gravity is below their center of buoyancy, so there is no heel high enough where they would « tip over », unlike surface ships which have their center of gravity above the center of buoyancy.

How do sub moves in the icy environment?

My Destroyer did Sub Guard as the sub could run simulated disaster drills and emergency surfacing, angles and dangles I believe they called them. It was an amazing sight to see a submarine emergency blasting out of the sea at an extreme angle and speed then crash back into the water. Not unlike a whale playing around.

What would happen if s submerged sub at cruse depth encountered a tsunami, like the one that hit Japan?

A fair amount of lack of ressearch here. Lets hope he doesn't command a submarine.

So how might the exterior surface of a sub survive a direct hit compared to say an Iowa-class battleship being struck by the same weapon?

Some cars have them too

Submarines passengers how determine the cloths to wear? Summer or Winter cloth?

Can subs sea underwater using visual?Just in case if you're they are sailing between mountain ranges

5:12 Nice GTA Online submarine cutscene...

In WW II, subs were faster on the surface. Now subs are faster submerged.

My guess as the sub returns to the surface less pressure, the faster it moves to the surface, putting extra pressure in a balloon

Whence comes the air to fill the flooded ballast tanks ? A few cylinders of compressed air which are slowly and loudly filled at the vulnerable stay at the surface after each individual diving?

slow is smooth smooth is fast.

Its called ballast

can submarines intentionally do barrel rolls?

Because its underwater.

An answer to the question posed in the video's 1st half, does an increase in sea water pressure affect the sub's buoyancy? The answer is Yes. How? An increase in depth is the increase in sea water pressure around the submarine. This compresses the submarine a small amount, making it smaller, therefore heavier. The Ballast Control Panel operator a.k.a. the Chief of the Watch will monitor tank levels and follow orders from the Diving Officer to take in or pump out sea water in the Trim tanks to adjust for the submarines neutral buoyancy, also taking into account the temperature and salinity of the sea water which also has effects on the trim of the submarine.

is it because they are too big to get close enough to the depicted surf ? be it beach or reef.

Could someone explain the Chinese sub that sank uncontrollably because of a change in water density finally crashing? What is the difference between Chinese subs and American subs?

Joining

God protect u USA forces armées ❤

semoga sehat bersama keluarga

They probably have gyroscopes

Does the submarine store the compress air to force the water out ? Underwater there is no air

❤❤❤ Hare Krišna 🍀🍂🧡🎉🦚🪷💥

how submarines see under water?

Imagine if a submerged sub lost the compressed air used to evacuate the ballast tanks. Might get difficult to get back to surface, right?

They don't tip over because the center of buoyancy is above the center of gravity. Duh

I would say “NO” because of all the weight of motors etc kept at the bottom of the sub. Also a subs frame work out side begins to start crushing when they start diving past their safety maximum depth. The pressure of the ocean is just much too much for the submarine and unfortunately it’s destroyed and the crew perish instantly. A good video example of this is to watch is a movie called “Down Periscope“, and although it’s a comedy movie it does show and tell if the sub is starting crush using a piece of sting. If you watch the movie, listen to what a guy called Howard or Howie says about the piece of string, I pissed myself laughing. That scene is very much at the start of the movie, I would say about 20 to 30 minutes from the start of it. It’s the first dive of the submarine scene. I suppose there has never been any actual footage or caught on video of this as the Navy would have to be prepared to loose a sub and its crew. Hey guys keep those Navy document videos coming as they are so interesting, educational and how each sailor performs a special or series of tasks to keep these ships going and to defend their country. That’s to all sailors and all Navies, they are brave men and women that sometimes sacrifice their lives for our freedom. Please think about other countries Navy, whether they are allies or the enemy to us. Deep done they are brothers and sisters doing the same job. It is the leaders of countries like presidents, prime ministers, kings etc that start wars I suppose for power, religion or own the world. It’s like the song, everybody wants to own the world.

Judging by the thumbnail... because they're not dumb enough to take them intoTeahupo'o break? Just a wild guess from a non-submariner.

Generally speaking a submarine IS LIKELY to be under the water!!!! "Sub" means 'under '...... "Marine" generally refers to 'water'..... Therefore when you put the two together you get "UNDER WATER"......

Beautiful

As long as the doors are shut who cares

"heavy equipment and wide tanks..." Nope. They are called ballast tanks, not wide tanks. "pressure hull and outer hull..." Nope. Pressure hull and superstructure. This guy doesn't know the names of the components and I gave up at 1:34 because - damn.

I spent MANY Christmas' in the North Atlantic in the winter 30 degree PLUS rolls at XXX feet could not cook, can Hams .....no we do not have double hulls the outer are tanks and NOT PART of the hull. The people tank is singular.... No never seen one going down or coming up .... been on many.......STS (SS)...

You have no idea about submarine aerodynamics. A sub can't surface more than a 1/4 of its hull or else it isn't stable even in calm waters. Under water sub suffers from the waves above unless in very deep water below 200 meters. American sub are single hull not double hull.

It’s not sub-mare-aners. It’s sub-mar-eeners. Get it right please. Navy productions, please.

Why don’t submarines roll in surfable waves? Because they are never at the surface in such waves, that’s why…

Belly rolls wouldn't be possible.

danger。 forever。 abnormal

Nah matahari pagi di 8 cm pakai kapal selam ini yang paling pass diperkirakan kapal selam naik diatas permukaan air laut di dinding langit pas di 8 cm ini karena di langit itu cuman di kepingan wilayah bumi itu saja selebihnya cuman laug kau cari langit kau tidak dapat dinding langit kau kesana langit kesana terus tidak ada habisnya bisa ??, pakai appolo juga sama semakin kau mendaki dengan apoko masih ada lagi langit kau tidak akan dapat langit pada matahari , 2024 🙏🙏🙏🙏🙏🙏🙏🙏🙏

US submarines are not double hulled, Russian subs are.

The keel is the center of balance.

HAHAHA

Never seen subs surface/dive, they are not to be seen, isn't that right !!?? unless at the docking area.

Actually our Subs are shaped more like Tuna, one of the fastest most efficient shapes in the world's Oceans.....

USA not confident direct fight to RUSSIA pooooooo🙄🙄🙄🙄🙄🙄

Please stop using Photoshop.

Another cringe worthy video. The use of stability many times without defining the term. 90+% of the video discusses pitch stability and still manages it get that wrong. The cringe comes from most people assume roll stability. While the video is correct that heavy equipment and tanks TEND to be placed low in the boat that only help with roll stability. Compared to most ships (targest) a submarine has horrible roll stability because of it's rounded hull. Many amphibious ships (ie. LST, LSD) have flat bottom hulls which also are horrible for roll stability. As a side note, submarines are boats and surface combatants are either ships or targets. Why can't youtube chamnels bother actually asking subject matter experts prior to producing garbage like this? 2 experiences related to roll stability: 1. We did a high speed run (aka flank speed) in order to participate in a surface combatant excecsise. We were the designated submarine for them to attempt ASW (another story). We traversed relstively shallow (about 100 feet but I don't know why as deeper would have minimized cavitation). It was a lovely trip as my bunk was oriented fore-aft not port-starboard. For several days we had a nice roll of about 3-5 degrees making for a nice, steady rocking motion laying in my bunk. Think of a baby being gently rocked in their cradle. This roll was not due to surface sells because it was constant for several dsys and as soon as we slowed down it went away. It was caused from instability. 2. A crew member needed to be medivac'd. We needed to get close enough to a Coast Guard base in order for a helicopter to have the range plus safety buffer to do the medivac. As we neared the surface the boat started rolling. By the time we surfaced the rolls were 20+ degrees. We made best safe speed on the surface. The swells were 4-6 feet, in other worfs a nice calm Gulf of Alaska trip. The round trip on the surface was shy of 4 wonderful dsys. Unlike the vaste majority of the crew I usually only get seasick if the vessel isn't making headway. This created 4 wonderful days were most drills were suspended as most of the crew was either in their bunks or the head when off duty. Chow lines didn't exist and the boat had this awesomely eerie replacement of human voice with moaning. The one time I came close to getting seasick was my own fault. The first time i hsd to stand watch during this time I was bored and started watching the bildge water go up on side of the inner hull, then come back down and go up the other side.The rolls were probaly at least 30 degrees at this point as the high point of the bilge water was higher than the deck above by a few feet. After several minutes i suddenly felt a bit green an queasy. I forced myself to stop watching my new entertainment and withing a few minutes felt normal. Even a WW2 LST doesn't roll that severely. 4-6 foot swells is considered calm on the open ocean. 3. Angles and dangles is a special "evolution" to test the boat. It is rarely done. It is were the boat undergoes steep dives followed by steep surfacing (and occassionally broaching which is how the pictures/videos showing a sub leaping out of the water like a whale made). These evolutions prove this videos claim that submarines are always stable (pitch) to be false. The pitch during the dive and surface (even if the boat doesn;t actually surface) can reach 40+ degrees. Extra crew is assigned specifically looking for problems like tools, books/manuals, equipment, and supplies not properly secured. Often tools left behind from off-boat maintanance crews are discovered (I heard stories of how those crews would occassionally forget tools inside tanks which couldn't be safely removed underway and could cause damage and noise). What doesn't want to be discovered is leaks, especially seawater and even worse a seawater leak between the hull and first valve (all seawater openings are required to have at least 2 shutoff valves in case the first one leaks). Angles and dangles are fun, but they are also an extremely important boat certification. Before a submarine is in a position were it needs to quickly dive (evade being spotted or torpedo evasion) it is best to know before hand that doing so won't lead to a major seawater leak preventing the ability to surface. Likewise it is important to know that an emergency surface will not also cause damage that could prevent surfacing. Quickly changing depth means quickly changing seawater pressure on the hull. The deeper you go quickly increases the pressures. As you dive deeper the submarines hull will noticably contract until you pass "crush depth" which is literally the depth that the hull will crush. As the depth increases the chance of a seawater (and possibly other systems) leak increase. This would be BAD as the deeper the sub is the closer to crush depth and farther from the surface. A seawater leak can quickly negatively affect bouyancy (its like allowing a ballast tank to fill,except uncontrolled). When surfacing from deep depth, especially a quick surface the outside pressure now quickly lowers and the hull will un-compress. Many people don't think of the dangers of this. If you have ever taken a thin sheet of metal (or even a piece of paper) and bent it back and forth you will eventually reach a point were the sheet fails. This same process hapens on subs, bridges and other structures that are compressed and un-compressed. This is called fatigue stress. A sub undergoes a huge amount of testing to minimize the risks. Special metal alloys have been designed to minimize fatigue stress (along with a list of other design criteria). All it takes is a microscopic flaw in the hull, the, pipe, the valve, and/or welds that isn't caught. Maybe the dedign requirements assune a certain amount of fatigue stress for 30, 40, 50 years, but one microscopic flaw fails after just a few years or even during the first compression de-compression cycle. Suddenly you can have a seawater leak while surfacing. A microscopic seawater leak at deep depth can quickly erode surrounding metal causing the leak to expand.

Hydrodynamic haul