[TexasGator]

“I remember way back in the day when it was SS(N).”

The first nuclear sub was SSN-571.

[atomic_dog]

In many publications, in the early to mid-70's the USN was using SS(N). The designation cab be seen in many articles at the Naval History and Heritage Center www.history.navy.mil

Graduate of Nuclear Power School in Bainbridge, MD 1975.