Los Angeles class submarine life extension hull evaluation

Brief reference. Hull condition is good; lifetime limited by internal components and rate of technological advance.

Submarines aren't like a surface ship. You might have corrosion and thinning. If it were just the hull, that hull would last a lot longer. It's all those other components inside that drive the lifetime. The Los Angeles class — they wanted to extend the lifespan. When you look at the hull, that's all good. After you pressure-harden it, it's going to last you as long as you're preventing corrosion — it'll last forever. So that's really not the limiting component.