[TorpX]

For making a submerged attack, I consider it best to get ahead of the convoy (or ship) and be fairly close to its track. That way they will come to you and you need not make any noisy high speed maneuvers. If you are making a night surface attack, and your boat has good speed, you can most likely pick any angle you want.

As far as the escorts go, I can't really say. I'm in a new career, Dec. '41 and I just attacked a convoy where the escorts couldn't seem to hear me. Kind of like my sonar man. Of course, I didn't push my luck.....

I don't know what you mean by relative course. If you want to know the targets true bearing:

true bearing = your course + relative bearing (if > 360, subtract 360)

I'm guessing you don't do a plot now. If you plot out your targets movements, you will be able to obtain the targets course, as well as any other data you need, fairly easily. Plotting can be done on the in game chart or on paper.

Hope this is helpful.