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Modern nuclear submarines can stay underwater indefinitely; it's only the limitations of the crew (food and supplies) and mission requirements that dictate mission periods.
As an example, my own personal longest time submerged is 72 days; one of my closest friends was on the USS Parche, at that time a SpecOps development boat out of San Francisco, and their typical missions were 120 days, with no port stops. Still another friend was on the USS Seahorse during their global circumnavigation mission in the early 80's; 180 days at sea submerged, with only 2 port stops, Diego Garcia, and Perth, Australia.
After about 2 months, if you're not able to ventilate at periscope depth due to mission constraints, the air gets pretty stale (even though it's constantly cleaned and recycled) and everyone starts getting a little testy, but that's normal when you're placed in close quarters in a high stress environment for long periods.
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Could a tank travel under water?
yes, as long as it was being towed by a submarine.
What is the estimate for the length of a submarine?
An average submarine is about 300 feet long.
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.
How long can they stay under water for?
On average about 1-2 minutes.
How long has human stayed underwater?
Without breathing, the world record is 22min With air bottles (scuba diver) or in a submarine you can of course stay longer. In a submarine when you have enough supplies, you can stay virtually forever under water.
What is the average size of a submarine in world war 1?
it is about 110 meters long
How long can a loon stay under water for?
About 10-15 minutes on average. Exsiiron
How long can a submarine stay under the water?
For modern nuclear subs, they could theoretically stay under indefinitely. Of course, there's a crew which has to eat and bathe, and food and toiletries do eventually run out.
How long do Humans survive in water?
The average human can survive under water for approximately 5 minutes but no more then 10.
How long is a submarine sandwich?
A foot long submarine sandwich is 0.000189393939 miles long.
Where do under water frogs live?
because they can not breath under water that long? because they can not breath under water that long?
Can a human survive in the ocean under water?
For a short amount of time. Some swimmers can hold their breath under water for several minutes. But normally, you would drown unless you have equipment like what deep-sea divers use: a special diving suit with an oxygen mask. Also, scientists who work under the ocean for long periods of time generally do their work in a submarine. There have been some well-respected scientists who studied marine life while in a submarine.
