Ship sinking time option

[xlbob]

I downloaded patch 1.02 last friday and installed it afetr I reutrned to base from my 4th patrol yesterday. Thanks to the modders

After the installation, which was a breeze, I left for my 5th patrol right away. I'm assigned to grid DH 77 ... man that's a looong way to go.
First thing I noticed as I was leaving the dock at wilhelmshaven was there's a big ring or circle right there on the right corner of my boat's bridge. What is that?

I haven't reached my assigned patrol area yet, I just passed north of Stornoway, and have 7 torps left. Tonnage is around 46 k tonne. I sank one large merchant and one small merchant using a deck gun. I don't remember how many shells it took to sink the two ships, but I still have 95 shells left.

I had to use the deck gun cause the sea was calm, I just couldn't help it I'd been in situations where the sea was rough and no way I could use the deck gun ... so, since the sea was calm ...Aim for the waterline.

I also haven'ty played at 100% realism. Currently I'm at 82% realism. Still haven't ticked the Wo assistant, the manual targeting and the realistic ship sinking time.

If I ticked the "realistic ship sinking time" , or turn on the realistick sinking time option, how long wil it take for a ship to sink after I hit it? Will I have to stay nearby when it sinks to get credit/renown?

Thanks,