Quote:
Originally Posted by freebeard
Well, I'm certainly not going to watch the video again to find out, now that I know Youtube is disseminating Russian State secrets.
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It's turbulence they're avoiding. Heterogeneous velocity water mixing is 'noisy' to an electronics officer aboard the fish.
When it's compared to the friend-or-foe, look-up menu of acoustic anomalies, it stands out as anthropogenic.
It can make the difference between being detected or not.
Torpedoed or not.
We depth-charged the Soviet submarines visiting Cuba during the missile crisis. We weren't trying to sink them, just harassment. They got the message.
What we didn't know at the time was that, they had nuclear-tipped torpedoes.