I'm not a tin-can sailor (I was a submarine sailor, actually), but I did have the priviledge of spending a couple of weeks aboard
Hayler (DD-998) with DESRON 32. What a great ship with a great crew.
I bring that up because the flagship of the squadron was at the time USS Ramage (DDG-61)(ironically named after a submarine skipper). The DESRON couldn't embark on Ramage, nor could she support mixed-gender crews, because...
...there wasn't enough room onboard. There wasn't enough room for a helo hangar either, but that was corrected later at the expense of what, I don't know.
I believe they lengthened them by about 15 ft for the hanger. I had heard that the Arleigh Burkes were very tight, I was told by an EW, who have their own space on both the DD (USS Hewitt DD-966) and FFG (USS Ingraham FFG-61) I was aboard for their SLQ-32 and whatever else EW's used. Well, the SLQ-32 was shoehorned in between a couple of other pieces of equipment in an FC space on the DDG, of course on an Aegis ship what doesn't belong to the FCs?
Have a good weekend.