Hey guys,
I have just one question
Why destroyers can discover submarine while im surfaced by hydrophone? I thought hydrophone works only when im submarged but even if its night and they cant see me, they can discover me by hydrophone (if my engines are on) which efects turning on lights and shooting.
According to what i know, at night submarines could even enter convoys but with this hydrophone spotting on surface its impossibile with engines ON...