A few figures for various Royal Navy Ships:
HMS Skate (the last WWI "R" Class DD and the only one to serve in WWII) - 83 DC's by November 1941 - reduced from 112 earlier
"H" Class Destroyers: 110 DC's by February 1940
"A" and "B" Class Destroyers: 70 DC's April 1943
"D" Class Destroyers: 20 DC's before the war; 98 DC's April 1943
"F" Class Destroyers: 70 DC's April 1943
"G" Class Destroyers: Up to 107 DC's with 3 inch gun removed to save weight
Wickes Class Ex-USA "Four Stackers": only 50-60 DC's (due to stability & topweight problems).
