SSBN. ETV. Will not respond to questions about sensitive or classified subjects. My views are my own and I do not represent anyone.
Hi there!
Edit: since this has been asked several times:
SSBN stands for “submersible ship, ballistic missile, nuclear powered”. That is, the same overall type of ship as the Red October.
ETV stands for “Electronics Technican, Navigation”, because N was already taken by Nuclear Electronics Technicians. I work with everything from interior communications and announcing circuits to Electronics, shipwide atmospheric monitoring, navigational inertial gyroscopes, strategic nuclear missile navigation, and tank level indicators to basic underwater submarine navigation using the voyage management system and even helming the ship itself.
What the other guy said. Without CO2 scrubbers, O2 generators and constant atmospheric monitoring, you may accidentally enter a bubble of fumes and never even know it before you’re dead. When we do have to enter a tank or void, we always make sure there’s someone at the entrance of the tank regularly calling in and waiting for a response, and if they don’t hear anything, to not enter and immediately call for help.