Mechanical transients??

[speed150mph]

I'm running dw with RA mod, and I've noticed that the game sorta detects mechanical transients, when operating a sub when I open my torpedo tube doors I give away my location to anyone nearby.

My question is does it work in reverse. The computer can detect me doing it but can I detect an enemy sub doing it over the sonar. I don't ever recall hearing anything or seeing anything over the sonar that gives any hint that an enemy sub is opening tube doors.

Secondly, I understand the principle of a ships baffles being a dead zone as a sub can't hear sounds from behind unless using the towed array. Would this work in reverse too? In game and in real life, if I wanted to open my tube doors and not have him hear me, would it work if I came about placing the hull of my sub between him and the sound source, or would it still resonate.

Thanks guys