Resting on the bottom for a few hours..

[Leandros]

Originally Posted by GREY WOLF 3

Astic is A system using transmitted and reflected underwater sound waves to detect and locate submerged objects or measure the distance to the floor of a body of water. So with no sound at all it picks up THAT BIG MASS of metal in your case a sub.

But then you ought to hear the pinging. My experience is that, for a example a lead escort, only starts pinging after it has got suspicious about you.

[JamesT73J]

Originally Posted by Leandros

But then you ought to hear the pinging. My experience is that, for a example a lead escort, only starts pinging after it has got suspicious about you.

This is my experience. ASW units seem to listen passively, then locate using active sonar. I notice that silent running disables torpedo loading, pumps, the snort mast (if you have one); I suspect SH3 sums these things (along with your motor and screw noise) into an emissions total. There appears to be no particular penalty for having the pumps switched off; in AOD you couldn't do this for long periods as you'd start to sink as the bilge filled up.

I tried the scenario again, this time running very slowly and using silent running. I was able to stay in Gibraltar harbour for 24 hrs, with no bother.

Much as I adore GWX I wish the escorts weren't such good listeners, especially early war. You can't go flank underwater within 4km of an escort sometimes. Late-war this is completely understandable (there are many cases of u-boats detected ahead of convoys purely by passive means) but early on during the happy times they could do with some ear plugs.


J

[Jimbuna]

In the early war period there are fewer escorts with veteran and elite status which should dampen down the listening ability/effectiveness of some, but not all.

[ryanglavin]

I wish someone put the Seawolf Class sub in SH3 to be compatible with GWX 3.0...

Firing missiles while 20 miles away at a convoy would be hilarious...!

[G7eT2]

From what I have read convoy escorts and patrol vessels did ping the entire time they were on duty, regardless of whether they suspected anything.

Presumably the game does not model this because it would be incredibly annoying to have to listen to all the pinging anytime an asdic equipped vessel was close by.

So you may actually be being detected by asdic initially rather than hydrophone effect, and the game then starts up the pinging sound effect to add to the atmosphere of being hunted.

I could be wrong and will no doubt be made fully aware of the fact if I am.

[Jimbuna]

Originally Posted by G7eT2

From what I have read convoy escorts and patrol vessels did ping the entire time they were on duty, regardless of whether they suspected anything.

Presumably the game does not model this because it would be incredibly annoying to have to listen to all the pinging anytime an asdic equipped vessel was close by.

So you may actually be being detected by asdic initially rather than hydrophone effect, and the game then starts up the pinging sound effect to add to the atmosphere of being hunted.

I could be wrong and will no doubt be made fully aware of the fact if I am.

What sources are you quoting from regarding the constant pinging?

My understanding is that escorts wouldn't go 'active' until they suspected there was a U-boat in their immediate vicinity.

Constant active pinging would simply forewarn a U-boat of an approaching convoy.

[ReFaN]

Originally Posted by jimbuna

What sources are you quoting from regarding the constant pinging?

My understanding is that escorts wouldn't go 'active' until they suspected there was a U-boat in their immediate vicinity.

Constant active pinging would simply forewarn a U-boat of an approaching convoy.

in the Book *Iron coffins* the author stated that the Escorts pinged all the time, but that may just be a thing i read.