Relentless Destroyers

[ddiplock]

Its September 3rd 1939, U-52 was entereing the English channel when she was attacked by a small torpedo boat thingy. Minor damage was sustained to the conning tower, and a dive was ordered.

Next thing, two destroyers show up to the area and begin blanketing it with Sonar pings in an effort to find me. I have had some close calls with these two destroyers, who have been depth charging me now for the last 45 minutes (in real time this time guys). I have sustained damage which i've kept on repairing time and again.

They're proving to be quite relentless in their bid to sink me :S I am constantly making course corrections but cannot dive any deeper as I'm at the mouth of the English channel, so depth is limited. Those incessant pings are getting to be an annoyance too, espesially if there's two destroyers up there.

Quick Question: Is it accurate that the Royal Navy had ASDIC systems on their destroyers as early as this is in the war?