While I could easily be mistaken, I thought that a normal carrier Westpac at the time was at least nine months, if not a year. (My DDG did a six month Westpac in late 1972 but that was typical for the smaller ships.)
Bob I was on a different carrier so I don’t know about the K.H. (My point was they were motivated to riot because of being sent back for another cruise with out a break..6 mo. or 9 mo. is a long at sea.And liberty’s don’t cut it after a while)