Hallo Hitman,
sorry I am a little bit confused.
I always thougt:
AOB is the angle between the long axis of the other ship and a line from my sub to the middle of the other ship.
See the the little drawing. Here the AOB (Lagewinkel )is 90°
Kursdifferenzwinkel is here 0°
The term Kurswinkel is the angle between the meridiane (North) and our motion direction. = Heading
The heading is of no relevance programming the TDC because the relative positions and movements are important things for setting the TDC.
