Submarines

The only condiment that is added to a Tubby's Steak and Cheese is their very own creamy Italian dressing, that's it. Some people prefer some mayo, but it is rare. You can buy the dressing at any Tubby's Sub Shop.

Modern submarines are designed to use every oceanographic element to tactical advantage, and the ocean environment is constantly monitored since it changes as the boat travels through different areas. The biggest concern is sound propagation in water, as water travels much faster in water than it does in air. Temperature, salinity, pressure, thermal layers, etc., all have an effect on how sound travels in the water. In the submarine world, the boat who hears the other one first wins.

It's not only the sound given off by a submarine, it's the sound received by it from other targets. Knowing how the environment affects the current sound profile helps determine if target information is being affected or not. For example, the Gulf Stream is much warmer than the surrounding ocean it flows through, and sound is greatly affected by temperature. A target bearing 090 can literally shift on Sonar several degrees as you pass through the Stream into cooler water due to temperature effect on sound.

Depth wise, the deeper you go, the more temperature and pressure becomes a variable in the sound equation for another submarine, and thermal layers can diffuse active sonar from surface ships, sonobouys (fixed-wing aircraft dropped) or helo dipping sonars making it much more difficult to detect.

On the engineering side, seawater is passed through an evaporator and the resultant fresh potable water is further refined for everything from oxygen generation to showers and laundry.

The pressure hull of a submarine must withstand the pressure of water at depth. Hundreds of pounds of pressure per square inch translates into many tons of pressure around a pressure hull. If that hull doesn't have the strength to stand up to this, the pressure hull will implode. Steel is a "known quantity" as far as metals. We've used it for a long time, and we have a good handle on its characteristics. Steel alloys are extremely strong, fairly easy to fabricate, and won't double the national debt if we use this metal to make a submarine pressure hull.

Steel's weldability and its common availability make it a fine choice for submarine pressure hulls. It's really strong, too. That's a big plus. No one wants to be inside the pressure hull of a submarine when it fails.

He can, but he would normally have more important things to do.

Modern nuclear submarines have years of power in their reactor cores, and support equipment supplies water and keeps the air clean. There are, however, limits to the amount of provisions that can be stored aboard, and that limits time under water.

If a submarine takes on enough water, like any vessel, it'll sink straight to the bottom without intervention.

Lava is a volcanic by-product. there are submarine volcanoes. It is not known whether they have caused or contributed to submarine ( the ships) accidents but it could happen. another possibililty is that a bomb or depth charge that is intended to attack a submarine falls into a sub-volcano- explodes, and sets of an eruption unplanned by the Destroyer or bomber that dropped the charge!

The USS Nautilus (SSN-571) was built at General Dynamics' Electric Boat Division in Groton, Connecticut. The keel was laid down in June of 1952, she was christened and launched on 21 January, 1954, and she was commissioned on 30 September 1954.A link is provided to an article posted by our friends at Wikipedia, where knowledge is free.

A submarine is any vessel that can submerge and raise itself using air and water, the key of course that the number of dives must equal the number of surfacings to be successful. Though the most common submarines are for military use, there are commercial, research, and even tourist submarines, with differing levels of capability.

True submarines have the ability to remain submerged for long periods of time, with crew limitations being the only liability (food), unless the vessel is an unmanned remote probe, but they aren't typically referred to as submarines since they do not have independent operational capability - they're tethered to a pilot vessel.

Submarines are considered a major threat to any nation that uses ocean trade routes for commerce. During the Falklands War, the Argentine Navy found out how vulnerable it was to submarine warfare when their Cruiser, the General Belgrano (an old WW2 era US Navy Light Cruiser sold to them) was sunk with the loss of over 300 crew by the British Royal Navy Submarine HMS Conqueror. She remains the only ship to date ever sunk by a nuclear powered submarine. The losses from the sinking of the Belgrano were half of total Argentine KIA's in the war. The incident forced the Argentine Navy to keep the rest of their Navy in port for the duration of the war, having no viable Anti-Submarine Warfare capability.

Submarines are primarily used as anti-ship and anti-submarine warfare weapons, though they are also used as part of the U.S. Nuclear Deterrent (Ballistic Missile Submarines); as Cruise Missile launch platforms that can destroy land targets hundreds of miles away; and for delivering Special Operations teams covertly (SEAL's).

Classified

USS Batfish (SS-310), a U.S. Balao-class submarine under the command of Lt. Cdr. John K. Fyfe, sank 3 Japanese submarines (I-41, RO-112, RO-113) on her Sixth War Patrol between February 9-12, 1945. For her actions, she was awarded the Presidential Unit Citation.

Because of the high pressure that is exerted from the water on the window.

According to the movie Titanic, at about 4 km ~ 2.5 miles, the pressure exerted by the water on the window almost equal 3.5 tons/in^2. Therefore, a window of thickness 9 inches are used.

It's totally dependent on the hull type, material construction, and overall design, but in general, just before a submarine reaches crush depth is as much sea pressure as it can handle.

Submarines are still used by many navies to watch other navies ships and to protect coastlines secretly.

Test depth for U.S. boats was between 250' and 400' depending on the boat class.

The first submarines used in wars were not very mobile as no real engines had bee made for them, -So they had very short range and primarily used to plant bombs under or on the hull of enemy ships in harbour .

-By the time of WW1, submarines had electric motors for subsea propulsion and diesels for surface running (the diesels also recharged the huge battery banks) In this much more efficient form, submarines were used to attack enemy supply ships and thus starve the enemy of much needed supplies.

In WW2 and later, attack submarines were developed and these could often sink enemy warships.

In the latest type of nuclear 'boomers' , submarines can carry ICBM's or cruise missiles and could lurk anywhere in the world's oceans.

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Submarines can go straight to the bottom of the ocean if they're not careful. Diving isn't a problem; it's making the number of surfaces equal the number of dives that's the trick.

The actual diving depths of most military submarines is classified; e.g., the official Navy statement on U.S. submarine depths has always been greater than 400'. The true depth depends on the construction design and material. Even the depths reported on public sites and books are estimates and not confirmed military values.

While the actual military depths can't be revealed, the generally reported estimated depths on most sites is between 1000 and 2000 feet for most submarines, and that's not inaccurate.

Humans have gone to the deepest known part of the ocean, the Challenger Deep area of the Marianas Trench in the Pacific Ocean. Though it was in a bathyscaphe (Trieste) and not a submarine, the recorded depth was 35,797 feet, a record which still stands today.

Subterranean does.

Aside from Radio (used while submarines are at periscope depth), submarines and surface ships use underwater telephones to communicate. Essentially it's just a high-frequency sonar communication system, where the voice signal is modulated, transmitted by the UWT system, then demodulated by the receiving system so the voice transmission is understood.

If you understand how modern SCUBA communications work, it's the same thing; in fact, the technology came from the Navy to begin with.

The only drawback to the UWT system is the ocean environment itself. Like any underwater sound transmission system, the sound is subject to the thermal, depth, and salinity conditions of the transmitting source.

A submarine is a ship that sinks itself in a controlled manner by flooding tanks with water and returns to the surface in a controlled manner by blowing the water out of those tanks with compressed air.

The main uses of submarines so far have been military, where a ship that cannot be seen is needed.

It's a submarine-launched ballistic missile system comprised of the Trident missile, the special Trident warheads and the Ohio-class ballistic missile sub.

No, it will be greater

Imagine pressure as the weight of a column of water over an area, typically one sq. in. So the deeper you go, the greater the weight, the greater the pressure.