[Hitman]

@bert8for3: Many thanks for the ilustrative picture

I have been reading recently a 1st person account of the U-Boat warfare (Heinz Schäffer) and I have been able to confirm some of what I suspected: The Kaleun took bearings from the bridge -for plotting by the navigator- using the UZO and not by naked eye with binoculars. Therefore, the graphic you depicted is useful for the lookouts to indicate the approximate bearing of a initial contact but not for accurate plotting. Nevertheless, it has the value of being the historically correct method of reporting a new contact for lookouts and for the commander to have the first look at them.

So again, good job and many thanks