Quote:
|
If I understood correctly, your u boat must be on parallel course with target and after that this tool may be used anywhere on the navmap?
|
No, no. You can have whatever course you want (But life becomes easier if you start by putting the target to your 90º or 270º relative bearing), you just will need to later convert the relative (To your uboat) course of the enemy ship to real course.
Because you can't turn the ruler and the speed scale is fixed horizontally, you must plot your uboat's advance that way on your map. That means that on your map the uboat will appear to have a true course of either 90º or 270º, and hence you will later need to conver the results you get.