Submarines can submerge more than 600 feet below the ocean’s surface for up to four months at a time, constantly patrolling and working classified missions, which means they can’t be seen or heard, but are always silently under the sea doing important work.”
They are not so silent they can not be heard from hundreds of miles away by SOSUS sensitive passive sonar. The twin screw Russian boats would leave a distinctive signature.
“They are not so silent they can not be heard from hundreds of miles away by SOSUS sensitive passive sonar. The twin screw Russian boats would leave a distinctive signature.”
Yup.
You are correct on both points, and there are numerous additional facts easily available illustrating the ignorance of ought-six.