[ParaB]

AOB is very important and you HAVE to set it if you're using manual targetting against moving ships.

For stationary ships simply turn off the TDC and fire away, the torps will always hit where you're pointing your periscope at. You don't even need to lock up a target with 'space'.

To get used to manual targetting I suggest playing with map updates on.

What you want is the angle viewed from the enemy ship towards the position of your boat.

To do that I always plot the target's position on the map using bearing and the distance from the stadimeter (with map updates that's not necessary, of course). Now draw a course line for the target and your boat. Use the graduator tool now to measure the AoB from the position of the target to the position of your boat. You will see the orange line that indicates the torpedo's path change as you change AoB.

Once set the AoB will then update itself.