About Destroyers and Being Detected

[Ford Prefect]

If you zoom right in on the navigation map a marker appears around your boat showing both bearings and ranges upto 1500metres. I usually find that if the escorts are within that 1500metre range you're often in trouble, especially if they're there when you're torpedos hit home. You have to give escorts quite a wide berth when hunting a convoy as they seem to listen much harder than if they're alone.

Also make sure that in your rush to get into position you don't stray too close at high speed in tc. This will alert them and they will be on the look out.