Dotted Lines around some ships?

[Popeye the Sailorman]

1 SEP 42, departing La Spezia, Italy. 'Oh-Dark-Hundred'. I am following a ship out of the harbor, surfaced. On the Nav Chart I see several vessels around. When I left click on each, some of them have a 'dotted' [dashed?] circle around them, some distance out, except for a smaller pie shaped sector. That must mean something...

But what...please ? Their SONAR? I thought 'ASDIC' was a Brit invention... in those years.

P

[Foghladh_mhara]

As far as I know the dotted circle is their optimal sight range in fine weather. The pie shaped wedge is their listening range

[bigboywooly]

Asdic was invented at the end of WW1
Most nations had some form of listening capabilities by WW2

[Popeye the Sailorman]

'Likely arc of what a look-out could see'... seem right to me. After all it IS only a game, and modelling one lookout on the flag bridge [above the control bridge] would allow for the lack of search area dead aft... through the funnel(s), etc.

I'll settle for that. After all, why should a German Sub care about the searching area of a German war-ship...

Danke.........