The “Columbia” Class SSBN currently under construction will have a Reactor that will never need refueling. But it doesn't matter if the boat runs on nuclear fuel or not.
The sea is more powerful than that reactor (or diesel-electric or AIP boat). The sea tries very, very hard to kill you beneath the waves. It succeeds sometimes.
But every time you dive, you put stress on the hull of the submarine. The Soviets liked to use titanium hulls to build the deep-diving submarines that they were, but then discovered that they were not as strong as expected - and could only dive to depth a certain number of times before they didn't resurface because they were brittle.
U.S. submarines also have a certain lifespan, though much longer. A submarine’s life is measured in number of dives. And it’s kept track of very carefully. About 30–40 years of normal operations is what they’re good for. They are retired before then because technology has surpassed them.
#shorts
#usnavy
#Submarine
#Nuclearweapons
#Ships
#War
#Missile
#Science
#Education
#Math
#US Navy
#nuclearsubmarine
#aircraftcarrier
#navy
#russia
#submarines
#nuclear
#military
#typhoon-classsubmarine

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