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Modern Nuclear-powered & Diesel-Electric submarines are only limited by crew limitations, specifically food and other supplies. Without the need to replenish food, they can stay submerged indefinitely since oxygen is generated, carbon monoxide and dioxide is filtered, and potable water is distilled. However, DE submarines are also limited in range and time at sea by available fuel, while a Nuclear Powered boat doesn't have that problem.
My own personal longest submergence period is 72 days, though others have exceeded that limit. The Seahorse (SSN-669) during her circumnavigation of the globe in the 1982, spent over 180 total combined days submerged; they had only 2 ports of call during the entire mission, and they only lasted a few days each. The USS Parche (SSN-683) a Submarine Development boat, usually had the most submerged time in the submarine fleet, since her extreme classified missions did not allow her to make any Ports of Call. Her typical deployments were about 3-4 months, virtually all of that time submerged save for port exit and entrance.
After about 2 months, depending on what the mission is and whether or not the boat has been able to snorkel (and thus bring in fresh outside air), the crew starts getting a bit snappy and short tempered, and the air starts getting a bit stale if it hasn't been changed out. Filtered air is okay, but it gets old after a while. Other things like fruit and fresh vegetables are also a big deal, as well as fresh milk, since they're the first food items to get used after getting underway for a long mission. Long deployments also mean that most of the crew's complement is onboard, as well as any civilian riders required. That means it's a lot more cramped than usual. Hot bunking (3 crewmen sharing 2 bunks - 2 sleep while one is on watch) is common during long deployments, though typically assigned to junior crew members.
What else can I help you with?
How long can a submarine be in the water?
A nuclear powered submarine can remain submerged for as long as it has fuel rods and supplies for the crew.
The density of a submerged submarine is about the same as the density of?
The density of a submerged submarine is about the same as the density of the fluid it is submerged in, which is typically seawater. This allows the submarine to float or sink based on its buoyancy and weight.
How long could a world war 2 submarine stay submerged?
24 hours
What is the displacement of a submerged L-16 submarine?
The Soviet Leninets-class submarine L-16 had a submerged displacement of1,416 tons.
Why the metacentric height of a submerged submarine is called GB rather than GM?
Because for a submerged submarine, the COG is below the COB.
Why can an aquatic reptile remain submerged for a long period of time?
They have huge lungs
The buoyancy force on a submarine submerged in the ocean equals what?
The buoyancy force on a submerged submarine equals the weight of the water displaced by the submarine. This force acts in the opposite direction to the gravitational force, allowing the submarine to float or sink in the water.
The buoyancy force on a submarine submerged in the ocean equals?
the weight of the ocean water displaced by the submarine.
How do you use torpedoes in a sentence?
The torpedos were fired from the submerged submarine.
What is it called when a submarine moves?
The proper term is "Underway Submerged"
What are the benefits of building a nuclear submarine?
The main one is these submarines can effectively remain submerged (and thus hidden) all the time. They are only really limited by the amount of food they can carry for the crew.
How long can you survive in a submarine without resurfacing?
The length of time a submarine can stay submerged without resurfacing depends on its design and capabilities. Some modern submarines can stay submerged for several months, while others may only be able to stay submerged for a few days. It is important for submarines to resurface periodically to replenish supplies and allow for maintenance and crew rest.
