When in doubt, check the Wiki.
https://en.wikipedia.org/wiki/USS_Ar...(SSN-678)#1975
Archerfish was one of the boats on the east coast I wanted to serve aboard during the late 80's. The boat and her crew had a really solid reputation (I wound up doing my sea time in the Pacific and never looked back). The "637 stretch" boats were still considered the "Cadillacs of the fleet" while the early 688s (flight I and II) were a better tactical platform in some regards.