The Aussies can match the Chinese Silent subs. But they only have like 6 of them. The Chinese have surpassed us with Subs. They now have 76 to our 68.
But yeah some of ours Nuclear. Which they aren't silent.
Back as far as 2005, the U.S. Navy recognized the challenge and reached out to friends and allies for help. It was that year that the HMS
Gotland, a modern AIP submarine serving in the Swedish Navy,
made its home in California for a year. The goal was to test the impact of such a boat against U.S. aircraft carrier battle groups and other important vessels. It seems the boats, much cheaper to produce than the standard American nuclear-attack subs,
created quite the stir:
“Apparently the Navy got more than they were bargaining for when it came to finding and engaging the stealthy little sub. The Gotland virtually ‘sunk’ many U.S. nuclear fast attack subs, destroyers, frigates, cruisers and even made it into the 'red zone' beyond the last ring of anti-submarine defenses within a carrier strike group. Although it was rumored she got many simulated shots off on various U.S. super-carriers, one large-scale training exercise in particular with the then brand new USS
Ronald Reagan ended with the little sub making multiple attack runs on the super-carrier, before slithering away without ever being detected. . . ”
“. . .the little Swedish sub was "so silent it literally did not exist to our sensors." …..snip~
https://nationalinterest.org/blog/th...bmarines-15034