Video answer: How do nuclear submarines stay under water for months?
Top best answers to the question «How long can a submarine last under water»
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.
Video answer: A look inside australia’s nuclear submarine deal