Speaking for myself, they are getting nasty now!
I'm into late January of 41, and it's getting nasty. I parked 1.5 kms off the track of a whale factory ship and that would have put me 2 or more kms off the centerline of the convoy. Went to 20 meters depth. I hear a Black Swan moving back and forth at 70 degrees, medium range. Astern, at 170 I hear a corvette going by. I am at silent running. No engines running at all. All of a sudden the Swan starts pinging! At first the pings dont bounce off but then they do. This has never happened before. I get ahead of the convoy, submerge and park it. This wont work against this group. Either something tipped them off or now the Royal Navy does ping sweeps as a standard tactic. It seems to be the standard 5-6 escorts.
Markshot, since you've got it down against the 5-6 group, I'll ask you or anyone else that wants to jump in;
are you parking the sub 2 kms off the exact center of the convoy?
Are you doing all your approaches at night?
the gap bw lead escort and the point - that would the escort that zooms back and forth in the center and the point is the escort off either the front starboard or port quarter, right? If thats it, is the center escort the only one banging away with his active sonar?
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