I just heard a Fox News half-hour announcer say “John C. Stennis has just left his home port…”

No. John C. Stennis “left his home port,” permanently, a dozen years ago. This news story was about a ship. It should have been read, “The John C. Stennis has just left her home port.” Yes, I know it sounds strange (particularly given how little gender-driven English is, compared to, say Romance languages or German), but that’s how it’s done.