Norman Friedman noted that differences between ships of the same class could be very difficult to sort out. He blamed the yards where the work was done and priorities set by the Navy, as well as availability of machinery and systems.
Correct, the Iowa was the only one of her class to mount the three 20mms on Turret #2. It's the easiest way to pick the ship out.
Always amazed me how signalmen could pickout the different ships at night, without the many visual clues.
Well, they knew who was with them, so that's a start. And then it's just practice, practice, practice. If the ships are blacked-out it is sometimes easier, especially if there is a full moon.
"Any landing you walk away from is a landing where there were no ground support vehicles interested in you."
That reminds me of a story my uncle told. I've probably told it here before but it's been a while if I did so PLS excuse me. He was a bomber navigator during the war and taught navigation prior to a tour in Europe. They were on a flight in a B-24 one night and were landing in a field none of the crew had ever landed at before. They came in a bit low and caught a major power line with the props. My uncle said if they had been a little lower it would have taken out the pilots and a little higher and it would have caught the landing gear and nosed them over. As it was the props cut the wire and they landed ok but a bit shaken up. Took the crash trucks a while to get to them When they finally did the pilot yelled down at them "It took you long enough!" Which elicited this reply: "Yeah, Somebody turned out the lights". Turns out the power line supplied a good part of Texas at that time.
Iowa was intended to serve as a fleet flagship, so she had a second conning tower level below the first, with vision slits which can be seen in close-up photos of the ship as built (the conning tower was later surrounded by an enclosed bridge with glass windows which would still allow vision from the tower). A quad 40 on the turret would have blocked the view forward from the lower conning tower, hence the 20mms. One thing I'm curious about but have not been able to find, on the other Iowas, what was the lower level conning tower space used for? Flag bridges are usually one deck below the ship's bridge, so the ship's captain, conning officers, etc. can have the best possible visibility, including overhead.
My cousin Gordon bought Three of those in the late 70's when he was stationed in San Diego. The tires were completely dry rotted but everything else was fine. He planned on building one and selling the other two. I think he said he paid $150.00 each. Life and a divorce interrupted that plan. Sold all three and made a tidy profit.