US vs. German subs - which was better?

[Mush Martin]

Further too that Size doesnt count for ****

Design and construction matter.

You could probably have broken hood with two torpedos
dead centre.

but the same to torpedos probably would have left
a Japanese momi class still afloat despite a lack of armour.

Compartmentalization Machinery dispersal and armour.

surviving battle damage is possible if the pumps are still running.
but with no back up generators on a lot of RN ships (early)
damage control would prove impossible on the heels of power failures.

lessons were learned on all sides over the course of the war.
but it comes down to design construction and crew training.
these three things determine the odds of survival for your ship.

M