A few years back, I was doing some contract work as part of a team for DOD, and was at sea aboard the super carrier USS Ronald Reagan - CVN 76.
While my time on the cruise was not really long I did get invited to tour the Bridge by the XO, and there was a Sailor charting the ships location and course the old fashioned way, on paper, sorry I do not know the correct term for this. However, I did ask the Captain why they still do this? His response was 'Because if all the electronic navigation failed for whatever reason, we still want to know where we are.'
I thought that made real sense. But I don't think flashlights could have knocked out anything on that ship!
Also, they whistled me aboard on the Quater Deck, and I was allowed to dine in the Officers' Galley or Wardroom. They have great food in the Navy, and I did go to the enlisted Galley, too so I could talk to some of the crew.