So I swapped out my trust U50 VIIB boat for U94, a VIIC.
I'm in my second patrol in her and heading into the Irish sea a juicy fat convoy was heading my way. Perfect. I began to maneuver into a firing position, was rigged for silent running and was at PD. I passed kinda close to one of the destroyers, but not dangerously close.
I'm not making a squeak, when suddenly his ASDIC opens up and he starts pinging me STRAIGHT AWAY!!!!

I immidiatly aborted the attack and took U94 down as far as depth permitted, which was some 105 meters. I've taken some damage from DC attacks, but I can't hold the boat's depth, its become rear end heavy with some flooding. Each time I set a new depth, the boats ass drags it down and i get stuck on the seabed.
Would you guys recommend that I get rid of ALL the water from the rear compartments in order to make the boat easier to manage?? But that means securing from silent running, and making noise. I dont want to keep blowing my ballest every time I want to get the boat off the seabed.
Its only December 4th 1940, there's no way that destroyer could've known I was there. I was rigged for silent and not making a sound I tells you!!!! its impossible for him to have known I was there.