Realistic manual tdc and torpedo solutions

[Wolfcat]

I am mostly from sh3/sh5 uboat background where I can use many wheels and disks (roafb and attack disk) to figure out inputs for torpedo solution. It seems American boats don’t use these tools. How American skippers figure out aob etc? I like to play with no map updates so you won’t see red enemy mark on map for u to figure out the aob.