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How long could ww2 submarines stay under water?
After 48 hours, it would be unbearable and you would have to surface. The World War II submarine that had the longest possible underwater endurance was the German Type 21. It could stay down for up to 75 hours, which gives you a tad over 3 days.
What is the longest time someone has been in a submarine?
The longest I was ever out to sea (without pulling into port) was 70 days. We had enough food to stay our for another month, but were not unhappy to pull back into port. The longest at-sea period I know of from talking to shipmates is 105 days.
How many US subs were lost in WW2?
Fifty-two submarines
Fifty-two submarines of the United States Navy were lost during World War II.
Which submarine was submerged the longest but no longer submerged?
The submarine that was submerged the longest, but is no longer submerged, is the Hunley. On February 17, 1864, the Confederate submarine H.L. Hunley attacked and sank the 1,240- displacement ton United States Navy screw sloop-of-war USS Housatonic, which had been on Union blockade -duty in Charleston’s outer harbor.
How long can a nuclear submarine go without refueling?
How long can a nuclear submarine go without refueling? Nuclear power allowed submarines to run for about twenty years without needing to refuel. Food supplies became the only limit on a nuclear submarine’s time at sea. Since then, similar technologies have been developed to power aircraft carriers.
How long can you stay underwater in a submarine?
The limits on how long they can stay underwater are food and supplies. Submarines generally stock a 90-day supply of food, so they can spend three months underwater. The diesel-powered submarines (not now used by the United States Navy) had a limit of several days submerged.
How deep can a submarine go before it collapses?
The name is foreboding and fairly self-explanatory; it’s when the submarine goes so deep the water pressure crushes it, causing an implosion. The crush depth of most submarines is classified, but it’s likely to be more than 400 metres.