The Sturgeon-class attack submarine (SSN) were the "ships of the line" of the submarine attack fleet throughout the Cold War. They were phased out in the 1990s and early 21st century in favor of the Los Angeles and Seawolf classes.
... Road tube station[?]
York Road tube station[?]
As are these stations, all of which were at the far end of the Metropolitan Line, and stretch the definition of ...