In Portsmouth, NH there is the USS Albacore, which wasn't nuclear, but was a testbed for the tech that went into nuclear subs.

http://www.ussalbacore.org/

In Fall River, MA at Battleship Cove is the USS Lionfish, which is a Balao class sub from WW2 as well several other ships including the battleship USS Massachusetts.

http://www.battleshipcove.org/ss298-history.htm

The original logo was actually just meant to be a square, circle, and triangle (the base components of graphic design), they were rasterized to imply the high tech nature of the business. The resemblance to letters in the company name was a coincidence.