Comment by msisk6
3 hours ago
The ship can operate for a bit on decay heat. And they have battery banks to run major systems until conditions allow running at snorkel depth on the diesel engine.
And rumor has it some of the nuclear subs may work with a Stirling engine which can operate systems on heat alone.
The small sub world is going toward AIP. I wouldn't be surprised if the big ones have AIP for emergency power.
AIP?
Air-independent propulsion.