Very nice idea. I'm a fan of the nitty-gritty navigation issues, so i find nav lights idea very appealing.

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Nav lights should be on in home waters. I think it's normal practice unless a blackout was in effect, Especially back in those days... Navigating a busy harbor or channel at night in dicey water can be trickey.

Once coming home from patrol, (lorient) it was about 0230, Heavy seas and Dense fog, overcast. I had a Cruiser come steaming flank straight at me and i narrowly missed being run through as i couldn't get visual on it until it was inside 250-300M and we were both going almost straight down eachother's centerline. I pulled hard starboard at the last, and i missed by less then 20ft

:timeout:

Some home water lights would be good... or the search light where the player could control it from the bridge

If someone is still interested: Position lights (on both sides of the tower, at it's rear side and that one far aft) were only used in own waters after being overtaken by the escorts, mine sweepers or other units patrolling at u-boat bases. When in action, they were always off duty (as well as the life-buoys at both sides of the tower).
The flag was only raised when coming to or being in port and leaving it. As soon as land was out of side, the flag and the flag pole were removed and brought under deck (therefor the flag pole shouldn't be on the 3D-modells as well as those two life-buoys). The morse lamp (named "Varta-Lampe" after it's builder) as seen in "Das Boot" of course was always aboard for communication with other units at sea.

Regards;
thoomsn

Das Boot Herr kalun :D :salute: