How does a submarine stay silent underwater?

Well cavitation is not only a sound problem. It also an efficiency, reliability and sustainability problem for the propeller, as it can cause the propeller to wear down quickly due to micro explosions.

Cavitation can also damage the propeller. Those bubbles when they collapse they produce immense temperature and impact on the propellers.

Cavitation is vacuum pressure perhaps filled with a bit of steam but MOSTLY vacuum

We're cavitating. He can hear us!

Medal of Honor music 💛

Hell, jet skis have been using these props for years. 🙄

Has anybody tried the propellor system that Stingray used? I bet that's really quiet.

Submarines don’t have propellers

And if the mass population were to see this phenomenon they would call it 'cem'tation and have a conspiracy that the government is poisoning the water.

@grok are propeller cavitation bubbles on submarines actually steam?

Didn't realize it could happen with propellars. Normally only see it at low pressure chamber like water pump's suction pipe .

Toshiba–Kongsberg scandal