Historical and in-game drawbacks of using active sonar

[Daniel Prates]

Originally Posted by magic452

Later in the war I believe that some larger freighters do have some sort of active sonar detection capability.

And if close enough, you can just hear it, cant't you? or that only applies when you're submerged? I should imagine that the crewmen of a freighter, specially being in lower decks, probably could hear the pinging of nearby active sonar.