Posts:9102 Joined: December 15th, 2010, 10:13 pm
Location: Behind you, looking at you with my mustache!
Range finder on turret at that time are more or less a backup system. In case the Normal radars and gun-control systems should be knocked out. Basically main guns can still operate if the ship went in to darkness... system knocked out
But I think gun crew might use it from time to time to see where there shots landed visually.