A photo of a submarine I served on from 1982 to 1984, the USS Puffer (SSN-652) in this photo transiting to the Point Loma Naval Submarine Base in San Diego, California. She was a 637 class nuclear submarine and I was an Auxiliary man in the boat. There were two types of Machinist Mates in subs, Nukes who ran the nuclear power plant and Auxiliary Men, who took care of the hydraulics, pneumatics, sanitary systems (therefore our moniker shithouse mechanics) and the emergency diesel.