Just a little anecdote.. Getting some coffee at this afternoon at a gas station / convenience store, I noticed a license plate on a car at one of the pumps. It read: SSBN659. "SSBN659", I said to the fellow pumping his gas, "Sounds like a nice submarine." "Will Rodgers", he said, as he turned with a smile. "Merry Christmas, sir." https://en.wikipedia.org/wiki/USS_Will_Rogers_(SSBN-659)