US Navy maneuvering board manual from 1941 has some exercises that can be used but he problem is that the escorts are not keeping a steady course. You would either need to plot the escorts for a long time to figure out the pattern or just take an educated guess on the right course and adjust according to the situation.

hey hey, does the radar detection of periscopes is intantaneous when periscope rised at 4000m? Even with 25 seconds rised it?

i think radar should work worst in short ranges.

wich mod should be recomended to twick how radar works as many have been done to fix viasual sensors?
something like this: http://www.subsim.com/radioroom/show...9&postcount=33
some experience with it? theres a torpedo range correction too.