Thank you both for the excellent replies.I will most definitely check out that tutorial (that was the very mission I was trying to complete).
In real life do fast attack subs travel at very slow speeds or do they normally cruise around at 20 knots and still remain quiet. I guess I assumed that the fast the props turn the more noise the sub would make.
What about boomers? Do they cruise at very slow speeds (5 knots) because they are trying especially hard to be silent?
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