Chinese Submarines? Yea we got that covered...

[geetrue]

Originally Posted by Subnuts

Won't be able to hear engine or propeller sounds with all that flow noise. Superb acoustic camouflage.
A submarine so noisy, you can't perform TMA on it.

We had this happen back in 1970 in the Med on patrol ...
sonar supervisor blue crew Sam Houston SSBN 609.

sonar platform 200 feet 4kts

Port to port 2,000 yards just a hiss in a hurry

Best guess Russian November in a hurry

Too quick for BQQ 3C

recorder saw it on BQR-7

so what did we do

Conn/sonar fast moving contact 270

Conn eye, "keep me informed"

Conn/sonar lost contact in the baffles

Conn eye