No apology needed, the Museum volunteer guides are not always correct as I have encountered on several visits there to my old bunk. This forum supports robust debate.My apologies ASSAIL maybe i should have done my homework a bit better. I thought i remember the guide on the Vampire saying they still slept in hammocks but i may have been wrong. Certainly the adition of a Tartar system would have improved them, by the mid 70s the lack of a modern AD system would have been a weakness.
I must come clean also, on rechecking my facts, Daring entered service in the RN in 1952, the Forrest Sherman entered service in the USN at about the same time. The only difference between the FS and the CFAs with regards to habitability was the latter had air conditioning. The CFA class was an improved FS and first entered service in 1960.