Are port buoy red and green lights backwards?

[Wolfstriked]

Originally Posted by Mister_M

Indeed, why remove buoys inside or near the large harbours which were protected with heavy artillery and air coverage ?

Maybe to curtail enemy subs?A sub at night trying to get into a port with just a periscope to view out of and crashing into land is very probable.

[Fifi]

Originally Posted by Mister_M

About lighthouses, I know that they could be lighted up for the safety of friendly capital ships which were passing nearby. But I don't know if they were doing this for the passage of U-Boots...

Nope only for capital ships … at least on the testimonies i have read, & some web articles